PSIX / Power Solutions International, Inc. - SEC फाइलिंग, वार्षिक रिपोर्ट, प्रॉक्सी स्टेटमेंट

पावर सॉल्यूशंस इंटरनेशनल, इंक.
US ˙ NasdaqCM ˙ US73933G2021

मूलभूत आँकड़े
LEI 549300JWGWDXC70SNH31
CIK 1137091
SEC Filings
All companies that sell securities in the United States must register with the Securities and Exchange Commission (SEC) and file reports on a regular basis. These reports include company annual reports (10K, 10Q), news updates (8K), investor presentations (found in 8Ks), insider trades (form 4), ownership reports (13D, and 13G), and reports related to the specific securities sold, such as registration statements and prospectus. This page shows recent SEC filings related to Power Solutions International, Inc.
SEC Filings (Chronological Order)
यह पृष्ठ SEC फाइलिंग की एक पूरी, कालानुक्रमिक सूची प्रदान करता है, ओनरशिप फाइलिंग को छोड़कर, जो हम अन्यत्र प्रदान करते हैं।
August 8, 2025 EX-99.1

Power Solutions International Announces Record Second Quarter 2025 Financial Results Quarter Sales of $191.9 million, up 74% from a year earlier, Quarter Net Income of $51.2 million, up 138% from a year earlier, Diluted EPS $2.22 for the Quarter, up

Exhibit 99.1 Power Solutions International Announces Record Second Quarter 2025 Financial Results Quarter Sales of $191.9 million, up 74% from a year earlier, Quarter Net Income of $51.2 million, up 138% from a year earlier, Diluted EPS $2.22 for the Quarter, up 136% from a year earlier, Resolution of going concern with $29.2 million net income and $1.27 EPS impact, Reduced debt $15.0 million for

August 8, 2025 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (date of earliest event reported): August 7, 2025 Power Solutions In

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (date of earliest event reported): August 7, 2025 Power Solutions International, Inc. (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation) 001-35944 (Commission

August 8, 2025 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2025 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 001-35944 POWER SOLUTIONS INTERN

July 31, 2025 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): July 31, 2025 Power Solutions Inter

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): July 31, 2025 Power Solutions International, Inc.

July 31, 2025 EX-10.1

Revolving Credit Agreement, dated as of July 30, 2025, among the Company , the lenders party thereto and Standard Chartered Bank, as administrative agent.**

EX-10.1 Exhibit 10.1 **Portions of this exhibit have been omitted pursuant to Rule 601(b)(10) of Regulation S-K. The omitted information is not material and would likely cause competitive harm to the registrant if publicly disclosed. EXECUTION VERSION SECOND AMENDMENT TO CREDIT AGREEMENT SECOND AMENDMENT TO CREDIT AGREEMENT, dated as of July 30, 2025 (this “Amendment”) to the Revolving Credit Agre

July 29, 2025 EX-17.1

Letter from Kenneth W. Landini dated July 23, 2025.

Exhibit 17.1 July 23, 2025 Resignation of Kenneth W. Landini as a Director of Power Solutions International, Inc. To the Chairman of the Board of Directors of Power Solutions International, Inc., Mr. James Zhang, Be advised that I resign from the board of directors of Power Solutions International, Inc. effective July 23, 2025 at 9:00am Central Daylight Time. Although the board has decided not to

July 29, 2025 8-K

Current Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): July 29, 2025 Power Solutions International, Inc.

July 29, 2025 EX-10.1

Amendment No. 1 to the 2012 Incentive Compensation Plan.

Exhibit 10.1 AMENDMENT NO. 1 TO AMENDED AND RESTATED 2012 INCENTIVE COMPENSATION PLAN AMENDMENT NO. 1, dated as of July 24, 2025 (this “Amendment”), to the Amended and Restated 2012 Incentive Compensation Plan (as amended, the “Plan”) of Power Solutions International, Inc., a Delaware corporation (the “Corporation”). WHEREAS, the Corporation maintains the Plan, initially made effective as of May 3

June 13, 2025 DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

DEFA14A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ☒       Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary proxy statement ☐ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ☐ Definiti

June 13, 2025 DEF 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary proxy statement ☐ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ☒ Defi

May 29, 2025 EX-1.01

Power Solutions International, Inc. Conflict Minerals Report For The Year Ended December 31, 2024

Exhibit 1.01 Power Solutions International, Inc. Conflict Minerals Report For The Year Ended December 31, 2024 This report is provided by Power Solutions International, Inc. (herein referred to as “PSI” or the “Company”) for the calendar year ended December 31, 2024 and is presented to comply with Rule 13p-1 under the Securities Exchange Act of 1934, as amended (“Rule 13p-1”). Rule 13p-1 was adopt

May 29, 2025 SD

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM SD SPECIALIZED DISCLOSURE REPORT Power Solutions International, Inc. (Exact name of registrant as specified in its charter) Delaware 001-35944 33-0963637 (State or other jur

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM SD SPECIALIZED DISCLOSURE REPORT Power Solutions International, Inc. (Exact name of registrant as specified in its charter) Delaware 001-35944 33-0963637 (State or other jurisdiction of incorporation or organization) (Commission File Number) (IRS Employer Identification No.) 201 Mittel Drive, Wood Dale, Illinois 60191 (Ad

May 8, 2025 8-K

Regulation FD Disclosure, Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (date of earliest event reported): May 8, 2025 Power Solutions International, Inc. (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation) 001-35944 (Commission Fi

May 8, 2025 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2025 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 001-35944 POWER SOLUTIONS INTER

May 8, 2025 EX-99.1

Power Solutions International Announces Strong First Quarter 2025 Financial Results Quarter Sales of $135.4 million, up 42% from a year earlier, Quarter Gross Margin of 29.7%, up 2.7% from a year earlier, Quarter Net Income of $19.1 million, up 168%

Exhibit 99.1 Power Solutions International Announces Strong First Quarter 2025 Financial Results Quarter Sales of $135.4 million, up 42% from a year earlier, Quarter Gross Margin of 29.7%, up 2.7% from a year earlier, Quarter Net Income of $19.1 million, up 168% from a year earlier, EPS $0.83 for the Quarter, Debt decreased $10.0 million. WOOD DALE, Ill., May 8, 2025 – Power Solutions Internationa

April 30, 2025 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): April 30, 2025 Power Solutions Inte

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): April 30, 2025 Power Solutions International, Inc.

April 30, 2025 EX-10.1

Separation Agreement and Release, effective as of April 24, 2025, between the Company and Randall D. Lehner.

EX-10.1 Exhibit 10.1 CONFIDENTIAL MUTUAL SEPARATION AND GENERAL RELEASE AGREEMENT This Confidential Mutual Separation and General Release Agreement (“Agreement”) is made by and among Power Solutions International, Inc., its owners, shareholders, officers, directors, managers, members, predecessors, successors, subsidiaries, and affiliates (collectively, the “Company”) and Randall Lehner (“Employee

April 30, 2025 10-K/A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549  FORM 10-K/A Amendment No. 1 ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2024 or ☐ TRANSITION RE

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549  FORM 10-K/A Amendment No. 1 ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2024 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number

April 30, 2025 EX-97.1

Power Solutions International, Inc. Clawback Policy

Exhibit 97.1 POWER SOLUTIONS INTERNATIONAL, INC. CLAWBACK POLICY Introduction The Board of Directors of the Company (the “Board”) believes that it is in the best interests of Power Solutions International, Inc. (the “Company”) and its shareholders to create and maintain a culture that emphasizes integrity and accountability and that reinforces the Company’s pay-for-performance compensation philoso

March 24, 2025 EX-10.35

Description of Long-Term Incentive Plan

Exhibit 10.35 Description of Material Terms of Power Solutions International, Inc. LTI Plan for the period January 1, 2023 to December 31, 2025 Item Explanation Purpose The primary objectives of this plan are to retain employees and align employees’ incentives with the Company’s long-term goals. Eligibility Vice President and above or high strategic value based on scoring matrix. A matrix score of

March 24, 2025 EX-97.1

Power Solutions International, Inc. Clawback Policy

POWER SOLUTIONS INTERNATIONAL, INC. CLAWBACK POLICY Introduction The Board of Directors of the Company (the “Board”) believes that it is in the best interests of Power Solutions International, Inc. (the “Company”) and its shareholders to create and maintain a culture that emphasizes integrity and accountability and that reinforces the Company's pay-for-performance compensation philosophy. The Boar

March 24, 2025 8-K

Regulation FD Disclosure, Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (date of earliest event reported): March 24, 2025 Power Solutions International, Inc. (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation) 001-35944 (Commission

March 24, 2025 EX-99.1

Power Solutions International Announces Record Fourth Quarter and Record Full Year 2024 Financial Results Quarter Sales of $144.3 million, up 38% from a year earlier, Full Year Sales of $476.0 million, up 4% from a year earlier, Quarter Net Income of

Exhibit 99.1 Power Solutions International Announces Record Fourth Quarter and Record Full Year 2024 Financial Results Quarter Sales of $144.3 million, up 38% from a year earlier, Full Year Sales of $476.0 million, up 4% from a year earlier, Quarter Net Income of $23.3 million, up 178% from a year earlier, EPS $1.01 for the Quarter, Full Year Net Income of $69.3 million, up 163% from a year earlie

March 24, 2025 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K x ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2024 or ¨ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period fromto Commission file number 001-35944 POWER SOLUTIONS INTERNATION

March 24, 2025 EX-19.1

Power Solutions International, Inc. Insider Trading Compliance Policy

Policy: Jurisdiction: Original Effective Date: Revision Date: Insider Trading Compliance Policy All Jurisdictions August 11, 2020 August 8, 2024 Introduction In the course of your relationship with Power Solutions International, Inc.

March 24, 2025 EX-21.1

Subsidiaries of Power Solutions International, Inc.

Exhibit 21.1 Power Solutions International, Inc. and Consolidated Subsidiaries 100% Owned Subsidiaries of the Registrant Name Jurisdiction of Organization Professional Power Products, Inc An Illinois Corporation Bi-Phase Technologies, LLC A Minnesota Limited Liability Company Powertrain Integration Acquisition, LLC An Illinois Limited Liability Company The W Group, Inc. A Delaware Corporation *Cor

December 27, 2024 8-A12B/A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-A/A (Amendment No. 1) FOR REGISTRATION OF CERTAIN CLASSES OF SECURITIES PURSUANT TO SECTION 12(b) OR (g) OF THE SECURITIES EXCHANGE ACT OF 1934 POWER SOLUTIONS INTERNATION

8-A12B/A UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-A/A (Amendment No. 1) FOR REGISTRATION OF CERTAIN CLASSES OF SECURITIES PURSUANT TO SECTION 12(b) OR (g) OF THE SECURITIES EXCHANGE ACT OF 1934 POWER SOLUTIONS INTERNATIONAL, INC. (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation or reorganization) 33-

December 27, 2024 8-K

Regulation FD Disclosure

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): December 26, 2024 Power Solutions International, Inc.

December 27, 2024 EX-99.1

Power Solutions Announces Uplisting to The Nasdaq Stock Market

Exhibit 99.1 Power Solutions Announces Uplisting to The Nasdaq Stock Market WOOD DALE, Ill., December 24, 2024 – Power Solutions International, Inc. (the “Company” or “PSI”) (OTC Pink: PSIX), a leader in the design, engineering and manufacture of emission-certified engines and power systems, announced today that The Nasdaq Stock Market LLC (“Nasdaq”) has approved its application for uplisting the

December 23, 2024 8-A12B

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-A FOR REGISTRATION OF CERTAIN CLASSES OF SECURITIES PURSUANT TO SECTION 12(b) OR (g) OF THE SECURITIES EXCHANGE ACT OF 1934 POWER SOLUTIONS INTERNATIONAL, INC. (Exact name

8-A12B UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-A FOR REGISTRATION OF CERTAIN CLASSES OF SECURITIES PURSUANT TO SECTION 12(b) OR (g) OF THE SECURITIES EXCHANGE ACT OF 1934 POWER SOLUTIONS INTERNATIONAL, INC. (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation or reorganization) 33-0963637 (I.R.S. Employ

November 7, 2024 EX-99.1

Power Solutions International Announces Third Quarter 2024 Financial Results Net Income of $17.3 million, up 122% from a year earlier, Gross Margin of 28.9%, up 4.8% from a year earlier, Diluted Earnings Per Share of $0.75, up $0.41 from a year earli

Exhibit 99.1 Power Solutions International Announces Third Quarter 2024 Financial Results Net Income of $17.3 million, up 122% from a year earlier, Gross Margin of 28.9%, up 4.8% from a year earlier, Diluted Earnings Per Share of $0.75, up $0.41 from a year earlier, Shareholders’ Equity of $42.1 million, up $46.0 million from December 2023 WOOD DALE, Ill., November 7, 2024 – Power Solutions Intern

November 7, 2024 8-K

Regulation FD Disclosure, Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (date of earliest event reported): November 7, 2024 Power Solutions International, Inc. (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation) 001-35944 (Commissi

November 7, 2024 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2024 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 001-35944 POWER SOLUTIONS I

September 6, 2024 EX-10.2

Shareholder’s Loan Agreement, dated as of August 30, 2024, between the Company and Weichai America Corp.

Exhibit 10.2 Execution Version SHAREHOLDER’S LOAN AGREEMENT dated as of August 30, 2024 between POWER SOLUTIONS INTERNATIONAL, INC., as Borrower and WEICHAI AMERICA CORP., as Lender This SHAREHOLDER’S LOAN AGREEMENT dated as of August 30, 2024 (this “Loan Agreement”), between POWER SOLUTIONS INTERNATIONAL, INC., a Delaware corporation, as Borrower (the “Borrower”), and WEICHAI AMERICA CORP., an Il

September 6, 2024 EX-10.1

Uncommitted Revolving Credit Agreement, dated as of August 30, 2024, among the Company, the lenders party thereto and Standard Chartered Bank, as administrative agent.

Exhibit 10.1 Execution Version UNCOMMITTED REVOLVING CREDIT AGREEMENT dated as of August 30, 2024 among POWER SOLUTIONS INTERNATIONAL, INC., The LOAN PARTIES Party Hereto, The LENDERS Party Hereto, and STANDARD CHARTERED BANK, as Administrative Agent TABLE OF CONTENTS Page ARTICLE I DEFINITIONS 1 SECTION 1.01 Defined Terms 1 SECTION 1.02 Terms Generally 28 SECTION 1.03 Accounting Terms; Changes in

September 6, 2024 EX-99.1

Power Solutions International Announces New Credit Agreement with Standard Chartered Bank and New Shareholder Loan Agreement with Weichai America

Exhibit 99.1 Power Solutions International Announces New Credit Agreement with Standard Chartered Bank and New Shareholder Loan Agreement with Weichai America WOOD DALE, IL, September 6, 2024– Power Solutions International, Inc. (the “Company” or “PSI”) closed on its new uncommitted senior secured revolving credit agreement (the “Credit Agreement”), with Standard Chartered Bank (“Standard Chartere

September 6, 2024 8-K

Regulation FD Disclosure, Entry into a Material Definitive Agreement, Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): August 30, 2024 Power Solutions International, Inc.

August 12, 2024 8-K

Regulation FD Disclosure, Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (date of earliest event reported): August 12, 2024 Power Solutions International, Inc. (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation) 001-35944 (Commissio

August 12, 2024 EX-99.1

Power Solutions International Announces Record Second Quarter 2024 Financial Results Net Income was $21.5 million, an increase of 236% from a year earlier, Gross Margin was 31.8%, an increase of 9.7% from a year earlier, EPS were $0.94, an increase o

Exhibit 99.1 Power Solutions International Announces Record Second Quarter 2024 Financial Results Net Income was $21.5 million, an increase of 236% from a year earlier, Gross Margin was 31.8%, an increase of 9.7% from a year earlier, EPS were $0.94, an increase of $0.66 from a year earlier, Debt decreased $5.0 million, Shareholder Equity increased to $24.8 million. WOOD DALE, Ill., August 12, 2024

August 12, 2024 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2024 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 001-35944 POWER SOLUTIONS INTERN

July 30, 2024 8-K

Current Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): July 25, 2024 Power Solutions International, Inc.

June 14, 2024 DEF 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary proxy statement ☐ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ☒ Defi

June 14, 2024 DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ☒        Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary proxy statement ☐ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ☐ Definitive prox

May 31, 2024 SD

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM SD SPECIALIZED DISCLOSURE REPORT Power Solutions International, Inc. (Exact name of registrant as specified in its charter) Delaware 001-35944 33-0963637 (State or other jur

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM SD SPECIALIZED DISCLOSURE REPORT Power Solutions International, Inc. (Exact name of registrant as specified in its charter) Delaware 001-35944 33-0963637 (State or other jurisdiction of incorporation or organization) (Commission File Number) (IRS Employer Identification No.) 201 Mittel Drive, Wood Dale, Illinois 60191 (Ad

May 31, 2024 EX-1.01

Power Solutions International, Inc. Conflict Minerals Report For The Year Ended December 31, 2023

Exhibit 1.01 Power Solutions International, Inc. Conflict Minerals Report For The Year Ended December 31, 2023 This report is provided by Power Solutions International, Inc. (herein referred to as “PSI” or the “Company”) for the calendar year ended December 31, 2023 and is presented to comply with Rule 13p-1 under the Securities Exchange Act of 1934, as amended (“Rule 13p-1”). Rule 13p-1 was adopt

May 28, 2024 8-K

Current Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): May 23, 2024 Power Solutions International, Inc.

May 21, 2024 8-K

Regulation FD Disclosure, Entry into a Material Definitive Agreement, Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): May 20, 2024 Power Solutions International, Inc.

May 21, 2024 EX-10.1

$25 Million Third Amended and Restated Shareholder’s Loan Agreement, dated as of May 20, 2024, between the Company and Weichai America Corp.

Exhibit 10.1 $25M THIRD AMENDED AND RESTATED SHAREHOLDER’S LOAN AGREEMENT dated as of May 20, 2024 between POWER SOLUTIONS INTERNATIONAL, INC., as Borrower and WEICHAI AMERICA CORP., as Lender This THIRD AMENDED AND RESTATED SHAREHOLDER’S LOAN AGREEMENT dated as of May 20, 2024 (this “Loan Agreement”), between POWER SOLUTIONS INTERNATIONAL, INC., a Delaware corporation, as Borrower (the “Borrower”

May 21, 2024 EX-99.1

Power Solutions International Announces Extension to $25 Million Shareholder Loan Agreement With Weichai America

Exhibit 99.1 Power Solutions International Announces Extension to $25 Million Shareholder Loan Agreement With Weichai America WOOD DALE, Ill., May 21, 2024– Power Solutions International, Inc. (the “Company” or “PSI”) announced today that it amended and restated its $25 million shareholder’s loan agreement (the “$25 Million Third Amended and Restated Shareholder’s Loan Agreement”) with its majorit

May 7, 2024 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2024 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 001-35944 POWER SOLUTIONS INTER

May 7, 2024 EX-99.1

Power Solutions International Announces First Quarter 2024 Financial Results Net Income increased by 91%, EPS were $0.31, an increase of $0.15 for the Quarter, Gross Margin 27.0%, an increase of 6.9% for the Quarter, Operating Cash Flows were $15.6 m

Exhibit 99.1 Power Solutions International Announces First Quarter 2024 Financial Results Net Income increased by 91%, EPS were $0.31, an increase of $0.15 for the Quarter, Gross Margin 27.0%, an increase of 6.9% for the Quarter, Operating Cash Flows were $15.6 million, an increase of $10.6 million for the Quarter, Debt decreased $5.0 million for the Quarter, Shareholder Equity restored positive $

May 7, 2024 8-K

Regulation FD Disclosure, Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (date of earliest event reported): May 7, 2024 Power Solutions International, Inc. (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation) 001-35944 (Commission Fi

April 29, 2024 10-K/A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K/A Amendment No. 1 ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2023 or ☐ TRANSITION REP

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K/A Amendment No. 1 ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2023 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 001-35944 POWER SO

March 28, 2024 EX-10.1

Fourth Amended and Restated Uncommitted Revolving Credit Agreement, dated as of March 22, 2024, among the Company, certain subsidiaries of the Company party thereto, the lenders party thereto and Standard Chartered Bank, as administrative agent.

Exhibit 10.1 Execution Version FOURTH AMENDED AND RESTATED UNCOMMITTED REVOLVING CREDIT AGREEMENT dated as of March 22, 2024 among POWER SOLUTIONS INTERNATIONAL, INC., The LOAN PARTIES Party Hereto, The LENDERS Party Hereto, and STANDARD CHARTERED BANK, as Administrative Agent TABLE OF CONTENTS Page ARTICLE I DEFINITIONS 1 SECTION 1.01 Defined Terms 1 SECTION 1.02 Terms Generally 28 SECTION 1.03 A

March 28, 2024 EX-99.1

Power Solutions International Announces Extension to Credit Agreement

Exhibit 99.1 Power Solutions International Announces Extension to Credit Agreement WOOD DALE, Ill., March 28, 2024 – Power Solutions International, Inc. (the “Company” or “PSI”) amended its $130 million uncommitted senior secured revolving credit agreement (the “Fourth Amended and Restated Credit Agreement”), with Standard Chartered Bank, as administrative agent (“Standard Chartered”), and the len

March 28, 2024 EX-10.2

$30 Million Second Amended and Restated Shareholder’s Loan Agreement, dated as of March 22, 2024, between the Company and Weichai America Corp.

Exhibit 10.2 Execution Version SECOND AMENDED AND RESTATED SHAREHOLDER’S LOAN AGREEMENT dated as of March 22, 2024 between POWER SOLUTIONS INTERNATIONAL, INC., as Borrower and WEICHAI AMERICA CORP., as Lender This SECOND AMENDED AND RESTATED SHAREHOLDER’S LOAN AGREEMENT dated as of March 22, 2024 (this “Loan Agreement”), between POWER SOLUTIONS INTERNATIONAL, INC., a Delaware corporation, as Borro

March 28, 2024 8-K

Regulation FD Disclosure, Entry into a Material Definitive Agreement, Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): March 22, 2024 Power Solutions International, Inc.

March 14, 2024 EX-99.1

Power Solutions International Announces Fourth Quarter and Full Year 2023 Financial Results Net Income $8.4 million, EPS $0.36 for the Quarter Full Year Net Income $26.3 million, an increase of 133%, EPS $1.15 Full Year Operating Cash Flows $70.5 mil

Exhibit 99.1 Power Solutions International Announces Fourth Quarter and Full Year 2023 Financial Results Net Income $8.4 million, EPS $0.36 for the Quarter Full Year Net Income $26.3 million, an increase of 133%, EPS $1.15 Full Year Operating Cash Flows $70.5 million, an increase of $79.4 million Debt decreased $65.8 million year-to-date, $15.1 million for the Quarter WOOD DALE, Ill., March 14, 20

March 14, 2024 EX-21.1

Subsidiaries of Power Solutions International, Inc.

Exhibit 21.1 Power Solutions International, Inc. and Consolidated Subsidiaries 100% Owned Subsidiaries of the Registrant Name Jurisdiction of Organization Professional Power Products, Inc An Illinois Corporation Bi-Phase Technologies, LLC A Minnesota Limited Liability Company Powertrain Integration Acquisition, LLC An Illinois Limited Liability Company The W Group, Inc. A Delaware Corporation *Cor

March 14, 2024 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (date of earliest event reported): March 14, 2024 Power Solutions In

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (date of earliest event reported): March 14, 2024 Power Solutions International, Inc. (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation) 001-35944 (Commission

March 14, 2024 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K x ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2023 or ¨ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period fromto Commission file number 001-35944 POWER SOLUTIONS INTERNATION

March 14, 2024 EX-10.35

Description of Long-Term Incentive Plan

Exhibit 10.35 Description of Material Terms of Power Solutions International, Inc. LTI Plan for the period January 1, 2023 to December 31, 2025 Item Explanation Purpose The primary objectives of this plan are to retain employees and align employees’ incentives with the Company’s long-term goals. Eligibility Vice President and above or high strategic value based on scoring matrix. A matrix score of

March 1, 2024 EX-10.1

Employment Agreement, dated as of February 8, 2024, by and between Randall D. Lehner and Power Solutions International, Inc.

Exhibit 10.1 EMPLOYMENT AGREEMENT This Employment Agreement (“Agreement”) between Randall Lehner (“Lehner” or “Employee”) and Power Solutions International, Inc. (“Company”) is effective as of March 4, 2024 which is Employee’s planned start date with the Company (the “Effective Date”). PREAMBLE WHEREAS, The Company wishes to employ Employee as its General Counsel (“GC”) for its own operations and

March 1, 2024 EX-99.1

Power Solutions International Appoints Randall Lehner as General Counsel

Exhibit 99.1 Power Solutions International Appoints Randall Lehner as General Counsel WOOD DALE, Ill., March 1, 2024, Power Solutions International, Inc. (the “Company”) today announced that on February 7, 2024, the Board of Directors of the Company appointed Randall D. Lehner as its General Counsel, effective March 4, 2024. Mr. Lehner is an accomplished Legal Counsel who has more than 20 years of

March 1, 2024 8-K

Regulation FD Disclosure

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): March 1, 2024 Power Solutions International, Inc.

February 13, 2024 SC 13G/A

PSIX / Power Solutions International, Inc. / Gagnon Neil - SC 13G/A Passive Investment

SC 13G/A 1 power13ga10.htm SC 13G/A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 10)* Power Solutions International, Inc. (Name of Issuer) Common Stock, par value $0.001 per share (Title of Class of Securities) 73933G202 (CUSIP Number) December 31, 2023 (Date of Event Which Requires Filing of this Stat

December 6, 2023 8-K

Regulation FD Disclosure, Entry into a Material Definitive Agreement, Financial Statements and Exhibits, Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): November 29, 2023 Power Solutions International, Inc.

December 6, 2023 EX-99.1

Power Solutions International Announces Extension to $50 Million Shareholder Loan Agreement With Weichai America

EX-99.1 Exhibit 99.1 Power Solutions International Announces Extension to $50 Million Shareholder Loan Agreement With Weichai America WOOD DALE, Ill., December 5, 2023 — Power Solutions International, Inc. (the “Company” or “PSI”) (OTC Pink: PSIX), a leader in the design, engineering and manufacture of emission-certified engines and power systems, announced today that it amended and restated its $

December 6, 2023 EX-10.1

Second Amended and Restated Shareholder’s Loan Agreement, dated as of November 29, 2023, between the Company and Weichai America Corp.

EX-10.1 Exhibit 10.1 Execution Version SECOND AMENDED AND RESTATED SHAREHOLDER’S LOAN AGREEMENT dated as of November 29, 2023 between POWER SOLUTIONS INTERNATIONAL, INC., as Borrower and WEICHAI AMERICA CORP., as Lender This SECOND AMENDED AND RESTATED SHAREHOLDER’S LOAN AGREEMENT dated as of November 29, 2023 (this “Loan Agreement”), between POWER SOLUTIONS INTERNATIONAL, INC., a Delaware corpora

November 9, 2023 8-K

Regulation FD Disclosure, Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (date of earliest event reported): November 9, 2023 Power Solutions International, Inc. (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation) 001-35944 (Commissi

November 9, 2023 EX-99.1

Power Solutions International Announces Third Quarter 2023 Financial Results Gross Profit increased by 16%, EPS were $0.34, an increase of $0.20 for the Quarter, Operating Cash Flows were $35.5 million, an increase of $23.1 million for the Quarter, D

Exhibit 99.1 Power Solutions International Announces Third Quarter 2023 Financial Results Gross Profit increased by 16%, EPS were $0.34, an increase of $0.20 for the Quarter, Operating Cash Flows were $35.5 million, an increase of $23.1 million for the Quarter, Debt decreased $50.1 million year-to-date, $30.0 million for the Quarter. WOOD DALE, Ill., November 9, 2023 – Power Solutions Internationa

November 9, 2023 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2023 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 001-35944 POWER SOLUTIONS I

August 14, 2023 EX-99.1

Power Solutions International Announces Second Quarter 2023 Financial Results Gross Profit increased by 47%, EPS increased $0.22 or $0.28 for the Quarter, Operating Cash Flows increased $34.4 million; Debt decreased $20.7 million

Exhibit 99.1 Power Solutions International Announces Second Quarter 2023 Financial Results Gross Profit increased by 47%, EPS increased $0.22 or $0.28 for the Quarter, Operating Cash Flows increased $34.4 million; Debt decreased $20.7 million WOOD DALE, Ill., August 14, 2023 – Power Solutions International, Inc. (the “Company” or “PSI”) (OTC Pink: PSIX), a leader in the design, engineering and man

August 14, 2023 8-K

Regulation FD Disclosure, Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (date of earliest event reported): August, 14, 2023 Power Solutions International, Inc. (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation) 001-35944 (Commissi

August 14, 2023 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2023 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 001-35944 POWER SOLUTIONS INTERN

August 7, 2023 SC 13D/A

PSIX / Power Solutions International Inc / Winemaster Gary S Activist Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D (Rule 13d-101) Information to be Included in Statements Filed Pursuant to § 240.13d-1(a) and Amendments Thereto Filed Pursuant to § 240.13d-2(a) Under the Securities Exchange Act of 1934 (Amendment No. 19)* POWER SOLUTIONS INTERNATIONAL, INC. (Name of Issuer) Common Stock (Title of Class of Securities) 73933G202 (

July 27, 2023 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): July 25, 2023 Power Solutions Inter

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): July 25, 2023 Power Solutions International, Inc.

June 15, 2023 DEF 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

DEF 14A 1 d161124ddef14a.htm DEF 14A Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary proxy statement ☐ Confidential, for Use of the Commission Only (as

June 15, 2023 DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

DEFA14A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary proxy statement ☐ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ☐ Definitive pro

June 13, 2023 EX-10.1

Addendum # 12, dated as of June 8, 2023 to Supply Agreement, dated as of December 11, 2007, by and between Power Solutions International, Inc. and Doosan Infracore Co., Ltd., as amended.

Exhibit 10.1 CONFIDENTIAL TREATMENT – REDACTED COPY *** PURSUANT TO SECURITIES AND EXCHANGE COMMISSION REGULATIONS, CERTAIN INFORMATION IN THIS EXHIBIT HAS BEEN OMITTED AS NONMATERIAL AND LIKELY TO CAUSE COMPETITIVE HARM IF PUBLICLY DISCLOSED. ADDENDUM #12 This Addendum #12 (“Addendum”) is made and entered into on June 8, 2023 (the “Effective Date”) by and between HD HYUNDAI INFRACORE CO., LTD., h

June 13, 2023 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): June 8, 2023 Power Solutions Intern

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): June 8, 2023 Power Solutions International, Inc.

May 31, 2023 SD

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM SD SPECIALIZED DISCLOSURE REPORT Power Solutions International, Inc. (Exact name of registrant as specified in its charter) Delaware 001-35944 33-0963637 (State or other jur

SD UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM SD SPECIALIZED DISCLOSURE REPORT Power Solutions International, Inc. (Exact name of registrant as specified in its charter) Delaware 001-35944 33-0963637 (State or other jurisdiction of incorporation or organization) (Commission File Number) (IRS Employer Identification No.) 201 Mittel Drive, Wood Dale, Illinois 60191

May 31, 2023 EX-1.01

Power Solutions International, Inc. Conflict Minerals Report For The Year Ended December 31, 2022

EX-1.01 Exhibit 1.01 Power Solutions International, Inc. Conflict Minerals Report For The Year Ended December 31, 2022 This report is provided by Power Solutions International, Inc. (herein referred to as “PSI” or the “Company”) for the calendar year ended December 31, 2022 and is presented to comply with Rule 13p-1 under the Securities Exchange Act of 1934, as amended (“Rule 13p-1”). Rule 13p-1 w

May 17, 2023 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): May 12, 2023 Power Solutions Intern

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): May 12, 2023 Power Solutions International, Inc.

May 17, 2023 EX-10.1

Second Amended and Restated Shareholder’s Loan Agreement, dated as of May 12, 2023, between the Company and Weichai America Corp.

EX-10.1 Exhibit 10.1 SECOND AMENDED AND RESTATED SHAREHOLDER’S LOAN AGREEMENT dated as of May 12, 2023 between POWER SOLUTIONS INTERNATIONAL, INC., as Borrower and WEICHAI AMERICA CORP., as Lender This SECOND AMENDED AND RESTATED SHAREHOLDER’S LOAN AGREEMENT dated as of May 12, 2023 (this “Loan Agreement”), between POWER SOLUTIONS INTERNATIONAL, INC., a Delaware corporation, as Borrower (the “Borr

May 17, 2023 EX-99.1

Power Solutions International Announces Extension to $25 Million Shareholder Loan Agreement With Weichai America

EX-99.1 Exhibit 99.1 Power Solutions International Announces Extension to $25 Million Shareholder Loan Agreement With Weichai America WOOD DALE, Ill., May 17, 2023 — Power Solutions International, Inc. (the “Company” or “PSI”) (OTC Pink: PSIX), a leader in the design, engineering and manufacture of emission-certified engines and power systems, announced today that it amended and restated its $25 m

May 11, 2023 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2023 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 001-35944 POWER SOLUTIONS INTER

May 11, 2023 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): May 11, 2023 Power Solutions Inte

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): May 11, 2023 Power Solutions International, Inc. (Exact name of registrant as specified in its charter) Delaware 001-35944 33-0963637 (State or other jurisdiction of incorporation) (C

May 11, 2023 EX-99.1

Power Solutions International Announces First Quarter 2023 Financial Results Net Sales Grow by 18% in the Quarter, EPS increased $0.27 or $0.16 for the Quarter Gross Profit increase by 40%; Interest expense up $2.2 million

EX-99.1 Exhibit 99.1 Power Solutions International Announces First Quarter 2023 Financial Results Net Sales Grow by 18% in the Quarter, EPS increased $0.27 or $0.16 for the Quarter Gross Profit increase by 40%; Interest expense up $2.2 million WOOD DALE, Ill., May 11, 2023 — Power Solutions International, Inc. (the “Company” or “PSI”) (OTC Pink: PSIX), a leader in the design, engineering and manuf

May 1, 2023 10-K/A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K/A Amendment No. 1 ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2022 or ☐ TRANSITION REP

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K/A Amendment No. 1 ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2022 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number

May 1, 2023 EX-10.3

Power Solutions International, Inc. 2012 Incentive Compensation Plan, as amended and restated.

EX-10.3 Exhibit 10.3 Power Solutions International, Inc. 2012 Incentive Compensation Plan (as amended and restated May 26, 2022) Section 1. Establishment, Purpose and Duration 1.1. Effective Date and Purpose. Power Solutions International, Inc., a Delaware corporation (the “Company”), hereby establishes the Power Solutions International, Inc. 2012 Incentive Compensation Plan, as amended and restat

April 25, 2023 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): April 24, 2023 Power Solutions Inte

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): April 24, 2023 Power Solutions International, Inc.

April 25, 2023 EX-10.1

Employment Agreement, dated as of April 24, 2023, between the Company and Constantine Xykis

EX-10.1 Exhibit 10.1 EMPLOYMENT AGREEMENT This Employment Agreement (the “Agreement”) is dated this 24th day of April 2023, by and between Constantine Xykis (“Xykis”) and Power Solutions International, Inc. (the “Company”). PREAMBLE WHEREAS, Xykis has been employed by the Company as Chief Technical Officer (“CTO”) since March 15, 2021 and as Interim Chief Executive Officer (“Interim CEO”) since Ju

April 25, 2023 EX-99.1

Power Solutions International Announces the Permanent Appointment of Dino Xykis as its Chief Executive Officer

EX-99.1 Exhibit 99.1 Power Solutions International Announces the Permanent Appointment of Dino Xykis as its Chief Executive Officer WOOD DALE, Ill., April 25, 2023 — Power Solutions International, Inc. (“PSI” or “the Company”) (OTC Pink: PSIX), a leader in the design, engineering and manufacture of emission-certified engines and power systems, announced that effective April 24, 2023, it has appoin

April 14, 2023 EX-10.27

Description of Long-Term Incentive Plan

Exhibit 10.27 Description of Material Terms of Power Solutions International, Inc. LTI Plan for the period January 1, 2020 to December 31, 2022 Item Explanation Purpose The primary objectives of this plan are to retain employees and align employees’ incentives with the Company’s long-term goals. Eligibility Vice President and above or high strategic value. The participants are subject to Board app

April 14, 2023 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K x ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2022 or ¨ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period fromto Commission file number 001-35944 POWER SOLUTIONS INTERNATION

April 14, 2023 EX-21.1

Subsidiaries of Power Solutions International, Inc.

Exhibit 21.1 Power Solutions International, Inc. and Consolidated Subsidiaries 100% Owned Subsidiaries of the Registrant Name Jurisdiction of Organization Professional Power Products, Inc An Illinois Corporation Bi-Phase Technologies, LLC A Minnesota Limited Liability Company Powertrain Integration Acquisition, LLC An Illinois Limited Liability Company The W Group, Inc. A Delaware Corporation *Cor

March 31, 2023 NT 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 12b-25 NOTIFICATION OF LATE FILING (Check one): ☒ Form 10-K ☐ Form 20-F ☐ Form 11-K ☐ Form 10-Q ☐ Form 10-D ☐ Form N-CEN ☐ Form N-CSR For Period Ended: December 31, 2022 ☐ T

SEC FILE NUMBER 001-35944 CUSIP NUMBER 73933G202 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

March 31, 2023 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): March 31, 2023 Power Solutions In

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): March 31, 2023 Power Solutions International, Inc. (Exact name of registrant as specified in its charter) Delaware 001-35944 33-0963637 (State or other jurisdiction of incorporation)

March 31, 2023 EX-99.1

Power Solutions International Announces Fourth Quarter and Full Year 2022 Financial Results

EX-99.1 Exhibit 99.1 Power Solutions International Announces Fourth Quarter and Full Year 2022 Financial Results WOOD DALE, Ill., March 31, 2023 — Power Solutions International, Inc. (the “Company” or “PSI”) (OTC Pink: PSIX), a leader in the design, engineering and manufacture of emission-certified engines and power systems, announced fourth quarter and full year 2022 financial results. Fourth Qua

March 30, 2023 EX-10.3

First Amended and Restated Shareholder’s Loan Agreement, dated as of March 24, 2023, between the Company and Weichai America Corp.

EX-10.3 Exhibit 10.3 FIRST AMENDED AND RESTATED SHAREHOLDER’S LOAN AGREEMENT dated as of March 24, 2023 between POWER SOLUTIONS INTERNATIONAL, INC., as Borrower and WEICHAI AMERICA CORP., as Lender This FIRST AMENDED AND RESTATED SHAREHOLDER’S LOAN AGREEMENT dated as of March 24, 2023 (this “Loan Agreement”), between POWER SOLUTIONS INTERNATIONAL, INC., a Delaware corporation, as Borrower (the “Bo

March 30, 2023 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): March 24, 2023 Power Solutions Inte

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): March 24, 2023 Power Solutions International, Inc.

March 30, 2023 EX-10.2

Third Amended and Restated Shareholder’s Loan Agreement, dated as of March 24, 2023, between the Company and Weichai America Corp.

EX-10.2 Exhibit 10.2 THIRD AMENDED AND RESTATED SHAREHOLDER’S LOAN AGREEMENT dated as of March 24, 2023 between POWER SOLUTIONS INTERNATIONAL, INC., as Borrower and WEICHAI AMERICA CORP., as Lender This THIRD AMENDED AND RESTATED SHAREHOLDER’S LOAN AGREEMENT dated as of March 24, 2023 (this “Loan Agreement”), between POWER SOLUTIONS INTERNATIONAL, INC., a Delaware corporation, as Borrower (the “Bo

March 30, 2023 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): March 29, 2023 Power Solutions Inte

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): March 29, 2023 Power Solutions International, Inc.

March 30, 2023 EX-10.1

Third Amended and Restated Uncommitted Revolving Credit Agreement, dated as of March 24, 2023, among the Company, certain subsidiaries of the Company party thereto, the lenders party thereto and Standard Chartered Bank, as administrative agent.

EX-10.1 Exhibit 10.1 THIRD AMENDED AND RESTATED UNCOMMITTED REVOLVING CREDIT AGREEMENT dated as of March 24, 2023 among POWER SOLUTIONS INTERNATIONAL, INC., The LOAN PARTIES Party Hereto, The LENDERS Party Hereto, and STANDARD CHARTERED BANK, as Administrative Agent TABLE OF CONTENTS Page ARTICLE I DEFINITIONS 1 SECTION 1.01 Defined Terms 1 SECTION 1.02 Terms Generally 28 SECTION 1.03 Accounting T

March 30, 2023 EX-99.1

Power Solutions International Announces Extension to Credit Agreement

EX-99.1 Exhibit 99.1 Power Solutions International Announces Extension to Credit Agreement WOOD DALE, Ill., March 24, 2023 — Power Solutions International, Inc. (the “Company” or “PSI”) amended its $130 million uncommitted senior secured revolving credit agreement (the “Third Amended and Restated Credit Agreement”), with Standard Chartered Bank, as administrative agent (“Standard Chartered”), and

March 27, 2023 EX-10.1

Second Amendment to Strategic Collaboration Agreement, dated as of March 22, 2023, by and between the Company and Weichai Power.

EX-10.1 Exhibit 10.1 Second Amendment to Strategic Collaboration Agreement between Weichai Power Co, Ltd. and Power Solutions International, Inc. This Second Amendment to Strategic Collaboration Agreement (the “Second Amendment”) is made and entered into as of March 22, 2023 by and between (1) Weichai Power Co, Ltd., a company limited by shares incorporated under the laws of the People’s Republic

March 27, 2023 8-K

Entry into a Material Definitive Agreement, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): March 22, 2023 Power Solutions International, Inc.

February 6, 2023 SC 13G/A

PSIX / Power Solutions International Inc / Gagnon Neil - SC 13G/A Passive Investment

SC 13G/A 1 power13ga9.htm SC 13G/A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 9)* Power Solutions International, Inc. (Name of Issuer) Common Stock, par value $0.001 per share (Title of Class of Securities) 73933G202 (CUSIP Number) December 31, 2022 (Date of Event Which Requires Filing of this Statem

December 2, 2022 EX-99.1

Power Solutions International Announces Extension to $50 Million Shareholder Loan Agreement With Weichai America

Exhibit 99.1 Power Solutions International Announces Extension to $50 Million Shareholder Loan Agreement With Weichai America WOOD DALE, Ill., December 2, 2022 ? Power Solutions International, Inc. (the ?Company? or ?PSI?) (OTC Pink: PSIX), a leader in the design, engineering and manufacture of emission-certified engines and power systems, announced today that it amended and restated its $50 milli

December 2, 2022 EX-10.1

First Amended and Restated Shareholder’s Loan Agreement, dated as of November 29, 2022, between the Company and Weichai America Corp.

Exhibit 10.1 FIRST AMENDED AND RESTATED SHAREHOLDER?S LOAN AGREEMENT dated as of November 29, 2022 between POWER SOLUTIONS INTERNATIONAL, INC., as Borrower and WEICHAI AMERICA CORP., as Lender This FIRST AMENDED AND RESTATED SHAREHOLDER?S LOAN AGREEMENT dated as of November 29, 2022 (this ?Loan Agreement?), between POWER SOLUTIONS INTERNATIONAL, INC., a Delaware corporation, as Borrower (the ?Borr

December 2, 2022 8-K

Regulation FD Disclosure, Entry into a Material Definitive Agreement, Financial Statements and Exhibits, Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): November 29, 2022 Power Solutions International, Inc.

November 14, 2022 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): November 14, 2022 Power Solutions International, Inc. (Exact name of registrant as specified in its charter) Delaware 001-35944 33-0963637 (State or other jurisdiction of incorporatio

November 14, 2022 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ? QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2022 or ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 001-35944 POWER SOLUTIONS I

November 14, 2022 EX-99.1

Power Solutions International Announces Third Quarter 2022 Financial Results Net Income of $3.2 Million, an Improvement of $10.4 Million Adjusted Net Income of $4.2 million, an Improvement of $9.0 Million Adjusted Earnings Per Share of $0.18 Versus A

Exhibit 99.1 Power Solutions International Announces Third Quarter 2022 Financial Results Net Income of $3.2 Million, an Improvement of $10.4 Million Adjusted Net Income of $4.2 million, an Improvement of $9.0 Million Adjusted Earnings Per Share of $0.18 Versus Adjusted Loss Per Share of $0.21, an Improvement of $0.39 Earnings Per Share of $0.14 Versus Loss Per Share of $0.31, an Improvement of $0

September 22, 2022 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): September 16, 2022 Power Solutions International, Inc.

September 22, 2022 EX-10.1

Employment Agreement, effective as of September 16, 2022, between PSI and Sidong Shao

Exhibit 10.1 EMPLOYMENT AGREEMENT This Employment Agreement (?Agreement?) is dated this 16th day of September 2022, by and between Sidong Shao (?Shao?) and Power Solutions International, Inc. (?Company?). PREAMBLE WHEREAS, the Company desires to hire Shao to the position of Executive Vice President (?EVP?) of Product Management, Purchasing and Supply Chain of the Company, effective September 16, 2

August 29, 2022 EX-99.1

Power Solutions International Appoints Kenneth Li as Chief Financial Officer

Exhibit 99.1 Power Solutions International Appoints Kenneth Li as Chief Financial Officer WOOD DALE, Ill., August 29, 2022 ? Power Solutions International, Inc. (?PSI? or ?the Company?) (OTC Pink: PSIX), a leader in the design, engineering and manufacture of emission-certified engines and power systems, announced that Xun (Kenneth) Li has joined the Company as its chief financial officer, effectiv

August 29, 2022 8-K

Regulation FD Disclosure, Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): August 26, 2022 Power Solutions International, Inc.

August 29, 2022 EX-10.1

Employment Agreement, dated August 29, 2022, by and between the Company and Kenneth Li

EX-10.1 2 d360608dex101.htm EX-10.1 Exhibit 10.1 EMPLOYMENT AGREEMENT This Employment Agreement (“Agreement”) dated this 29th day of August 2022, by and between Kenneth Li (“LI” or “Employee”) and Power Solutions International, Inc. (“Company”) (the “Effective Date”). PREAMBLE WHEREAS, The Company wishes to employ Employee as its Chief Financial Officer (CFO) for its own operations and for the ope

August 11, 2022 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2022 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 001-35944 POWER SOLUTIONS INTERN

August 11, 2022 EX-99.1

Power Solutions International Announces Second Quarter 2022 Financial Results Net Income of $1.4 Million, an Improvement of $16.9 Million Adjusted Net Income of $2.4 million, an Improvement of $6.1 Million Adjusted Earnings Per Share of $0.10 Versus

Exhibit 99.1 Power Solutions International Announces Second Quarter 2022 Financial Results Net Income of $1.4 Million, an Improvement of $16.9 Million Adjusted Net Income of $2.4 million, an Improvement of $6.1 Million Adjusted Earnings Per Share of $0.10 Versus Adjusted Loss Per Share of $0.16, an Improvement of $0.26 Gross Profit Growth of 39%; Operating Expense Declines by 46% Power Systems and

August 11, 2022 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): August 11, 2022 Power Solutions International, Inc. (Exact name of registrant as specified in its charter) Delaware 001-35944 33-0963637 (State or other jurisdiction of incorporation)

July 25, 2022 EX-10.1

Addendum #11, dated as of July 1, 2022, to Supply Agreement, dated as of December 11, 2007, by and between Power Solutions International, Inc. and Doosan Infracore Co., Ltd., as amended.

Exhibit 10.1 CONFIDENTIAL TREATMENT ? REDACTED COPY *** PURSUANT TO SECURITIES AND EXCHANGE COMMISSION REGULATIONS, CERTAIN INFORMATION IN THIS EXHIBIT HAS BEEN OMITTED AS NONMATERIAL AND LIKELY TO CAUSE COMPETITIVE HARM IF PUBLICLY DISCLOSED. ADDENDUM #11 This Addendum #11 (?Addendum?) is made and entered into on July 1, 2022 (the ?Effective Date?) by and between HYUNDAI DOOSAN INFRACORE CO., LTD

July 25, 2022 8-K

Entry into a Material Definitive Agreement, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): July 7, 2022 Power Solutions International, Inc.

July 18, 2022 8-K

Submission of Matters to a Vote of Security Holders

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): July 14, 2022 Power Solutions International, Inc.

June 29, 2022 8-K/A

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K/A Amendment No.

June 29, 2022 EX-10.1

Separation Agreement and Release, dated June 26, 2022, by and between the Company and Lance Arnett

Exhibit 10.1 SEPARATION AGREEMENT AND RELEASE This Separation Agreement and Release (the ?Agreement?) is entered into between Lance M. Arnett (?Arnett?) and Power Solutions International, Inc. (the ?Company?). Arnett and the Company are collectively referred to herein as the ?Parties.? This Agreement will be effective upon expiration of the revocation period provided in Section 11 of this Agreemen

June 21, 2022 EX-10.1

Interim CEO Letter Agreement, dated June 15, 2022, by and between the Company and Dino Xykis

Exhibit 10.1 June 15, 2022 Dino Xykis XXXXX XXXXX Re: Interim CEO Letter Agreement Dear Dino: This letter agreement (?Agreement) sets forth the terms and conditions of your appointment as Interim Chief Executive Officer (?Interim CEO?) of Power Solutions International, Inc. (?PSI? or the ?Company?) reporting to the Board of Directors of PSI. The terms of this Agreement are in addition to the terms

June 21, 2022 8-K/A

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K/A Amendment No.

June 15, 2022 8-K/A

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K/A Amendment No.

June 15, 2022 EX-10.1

Interim CFO Letter Agreement, dated June 9, 2022, between the Company and Matthew Thomas

Exhibit 10.1 June 7, 2022 Matthew Thomas XXXXX XXXXX Re: Interim CFO Letter Agreement Dear Matt: This letter agreement (?Agreement) sets forth the terms and conditions of your appointment as Interim Chief Financial Officer (?CFO?) of Power Solutions International, Inc. (?PSI? or the ?Company?) reporting to the Chief Executive Officer (?CEO?) of PSI. The terms of this Agreement are in addition to t

June 2, 2022 8-K

Regulation FD Disclosure, Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): May 26, 2022 Power Solutions International, Inc.

June 2, 2022 EX-99.1

Power Solutions International Announces Leadership Transition Dino Xykis appointed by the Board as Interim CEO

Exhibit 99.1 Power Solutions International Announces Leadership Transition Dino Xykis appointed by the Board as Interim CEO WOOD DALE, Ill., June 2, 2022 ? Power Solutions International, Inc. (?PSI? or ?the Company?) (OTC Pink: PSIX), a leader in the design, engineering and manufacture of emission-certified engines and power systems, announced that its current Chief Technical Officer, C. (Dino) Xy

June 2, 2022 DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ? Filed by a Party other than the Registrant ? Check the appropriate box: ? Preliminary proxy statement ? Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ? Definitive proxy state

May 31, 2022 DEF 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ? Filed by a Party other than the Registrant ? Check the appropriate box: ? Preliminary proxy statement ? Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ? Defi

May 31, 2022 DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ? Filed by a Party other than the Registrant ? Check the appropriate box: ? Preliminary proxy statement ? Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ? Definitive proxy state

May 27, 2022 SD

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM SD SPECIALIZED DISCLOSURE REPORT Power Solutions International, Inc. (Exact name of registrant as specified in its charter) Delaware 001-35944 (State or other jurisdiction o

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM SD SPECIALIZED DISCLOSURE REPORT Power Solutions International, Inc. (Exact name of registrant as specified in its charter) Delaware 001-35944 (State or other jurisdiction of incorporation or organization) (Commission File Number) 201 Mittel Drive, Wood Dale, Illinois 60191 (Address of principal executive offices) (Zip co

May 27, 2022 EX-1.01

Power Solutions International, Inc. Conflict Minerals Report For The Year Ended December 31, 2021

Exhibit 1.01 Power Solutions International, Inc. Conflict Minerals Report For The Year Ended December 31, 2021 This report is provided by Power Solutions International, Inc. (herein referred to as ?PSI? or the ?Company?) for the calendar year ended December 31, 2021 and is presented to comply with Rule 13p-1 under the Securities Exchange Act of 1934, as amended (?Rule 13p-1?). Rule 13p-1 was adopt

May 16, 2022 EX-99.1

Power Solutions International Announces First Quarter 2022 Financial Results Power Systems and Industrial End Market Sales Grow by 52% and 33%, Respectively, in the Quarter Gross Profit More Than Doubles; Operating Expense Declines by 27%

Exhibit 99.1 Power Solutions International Announces First Quarter 2022 Financial Results Power Systems and Industrial End Market Sales Grow by 52% and 33%, Respectively, in the Quarter Gross Profit More Than Doubles; Operating Expense Declines by 27% WOOD DALE, Ill., May 16, 2022 ? Power Solutions International, Inc. (the ?Company? or ?PSI?) (OTC Pink: PSIX), a leader in the design, engineering a

May 16, 2022 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): May 16, 2022 Power Solutions International, Inc. (Exact name of registrant as specified in its charter) Delaware 001-35944 33-0963637 (State or other jurisdiction of incorporation) (C

May 16, 2022 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ? QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2022 or ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 001-35944 POWER SOLUTIONS INTER

May 2, 2022 EX-10.27

Retirement Agreement and Release, dated as of December 14, 2021, between the Company and Kenneth Winemaster

Exhibit 10.27 CONFIDENTIAL RETIREMENT AGREEMENT AND RELEASE This Confidential Retirement Agreement and Release (the ?Agreement?) is entered into between Kenneth Winemaster (?Winemaster?) and Power Solutions International, Inc. (the ?Company?). This Agreement will be effective upon expiration of the revocation period provided in Section 11 of this Agreement (the ?Effective Date?). BACKGROUND 1. Win

May 2, 2022 EX-10.32

Employment Agreement, dated March 15, 2021, by and between Constantine Xykis And Power Solutions International, Inc.

Exhibit 10.32 EMPLOYMENT AGREEMENT This Employment Agreement (?Agreement?) is dated this 15th day of March 2021, by and between Constantine Xykis (?Xykis?) and Power Solutions International, Inc. (?Company?). PREAMBLE WHEREAS, Xykis has been employed by Company since December 1, 2010 as Vice President of Engineering the terms of which were subsequently set forth in an Employment Agreement between

May 2, 2022 10-K/A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K/A Amendment No. 1

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K/A Amendment No. 1 ? ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2021 or ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 001-35944 POWER SO

April 21, 2022 EX-10.1

Shareholder’s Loan Agreement, dated April 20, 2022, by and between the Company and Weichai America Corp.

Exhibit 10.1 SHAREHOLDER?S LOAN AGREEMENT dated as of April 20, 2022 between POWER SOLUTIONS INTERNATIONAL, INC., as Borrower and WEICHAI AMERICA CORP., as Lender This SHAREHOLDER?S LOAN AGREEMENT dated as of April 20, 2022 (this ?Loan Agreement?), between POWER SOLUTIONS INTERNATIONAL, INC., a Delaware corporation, as Borrower (the ?Borrower?), and WEICHAI AMERICA CORP., an Illinois corporation,

April 21, 2022 EX-99.1

Power Solutions International Announces Additional $30 Million Shareholder Loan Agreement With Weichai America

Exhibit 99.1 Power Solutions International Announces Additional $30 Million Shareholder Loan Agreement With Weichai America WOOD DALE, Ill., April 21, 2022 ? Power Solutions International, Inc. (the ?Company? or ?PSI?) (OTC Pink: PSIX), a leader in the design, engineering and manufacture of emission-certified engines and power systems, announced today that it entered into an additional shareholder

April 21, 2022 8-K

Regulation FD Disclosure, Entry into a Material Definitive Agreement, Financial Statements and Exhibits, Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): April 20, 2022 Power Solutions International, Inc.

April 1, 2022 EX-99.1

Power Solutions International Announces Fourth Quarter and Full Year 2021 Financial Results

Exhibit 99.1 Power Solutions International Announces Fourth Quarter and Full Year 2021 Financial Results WOOD DALE, Ill., March 31, 2022 ? Power Solutions International, Inc. (the ?Company? or ?PSI?) (OTC Pink: PSIX), a leader in the design, engineering and manufacture of emission-certified engines and power systems, announced fourth quarter and full year 2021 financial results. Fourth Quarter 202

April 1, 2022 8-K/A

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K/A CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): March 31, 2022 Power Solutions International, Inc.

March 31, 2022 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K x ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2021 or ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period fromto Commission file number 001-35944 POWER SOLUTIONS INTERNATION

March 31, 2022 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): March 31, 2022 Power Solutions International, Inc. (Exact name of registrant as specified in its charter) Delaware 001-35944 33-0963637 (State or other jurisdiction of incorporation)

March 31, 2022 EX-21.1

Subsidiaries of Power Solutions International, Inc.

Exhibit 21.1 Power Solutions International, Inc. and Consolidated Subsidiaries 100% Owned Subsidiaries of the Registrant Name Jurisdiction of Organization Professional Power Products, Inc An Illinois Corporation Bi-Phase Technologies, LLC A Minnesota Limited Liability Company Powertrain Integration Acquisition, LLC An Illinois Limited Liability Company The W Group, Inc. A Delaware Corporation *Cor

March 31, 2022 EX-99.1

Power Solutions International Announces Fourth Quarter and Full Year 2021 Financial Results

Exhibit 99.1 Power Solutions International Announces Fourth Quarter and Full Year 2021 Financial Results WOOD DALE, Ill., March 31, 2022 ? Power Solutions International, Inc. (the ?Company? or ?PSI?) (OTC Pink: PSIX), a leader in the design, engineering and manufacture of emission-certified engines and power systems, announced fourth quarter and full year 2021 financial results. Fourth Quarter 202

March 31, 2022 EX-10.27

Description of Long-Term Incentive Plan

Exhibit 10.27 Description of Material Terms of Power Solutions International, Inc. LTI Plan for the period January 1, 2020 to December 31, 2022 Item Explanation Purpose The primary objectives of this plan are to retain employees and align employees? incentives with the Company?s long-term goals. Eligibility Vice President and above or high strategic value. The participants are subject to Board app

March 30, 2022 8-K

Regulation FD Disclosure, Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): March 24, 2022 Power Solutions International, Inc.

March 30, 2022 EX-99.1

Power Solutions International Announces CFO Transition

Exhibit 99.1 Power Solutions International Announces CFO Transition WOOD DALE, Ill., March 30, 2022 ? Power Solutions International, Inc. (?PSI? or ?the Company?) (OTC Pink: PSIX), a leader in the design, engineering and manufacture of emission-certified engines and power systems, announced that effective April 8, 2022 (the ?effective date?), it will appoint current corporate controller Matthew Th

March 28, 2022 EX-10.3

First Amended and Restated Shareholder’s Loan Agreement, dated as of March 25, 2022, between the Company and Weichai America Corp.

EX-10.3 Exhibit 10.3 FIRST AMENDED AND RESTATED SHAREHOLDER’S LOAN AGREEMENT dated as of March 25, 2022 between POWER SOLUTIONS INTERNATIONAL, INC., as Borrower and WEICHAI AMERICA CORP., as Lender This FIRST AMENDED AND RESTATED SHAREHOLDER’S LOAN AGREEMENT dated as of March 25, 2022 (this “Loan Agreement”), between POWER SOLUTIONS INTERNATIONAL, INC., a Delaware corporation, as Borrower (the “Bo

March 28, 2022 8-K

Regulation FD Disclosure, Entry into a Material Definitive Agreement, Financial Statements and Exhibits, Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): March 25, 2022 Power Solutions International, Inc.

March 28, 2022 EX-99.1

Power Solutions International Announces Extension to Credit Agreement

Exhibit 99.1 Power Solutions International Announces Extension to Credit Agreement WOOD DALE, Ill., March 28, 2022 ? Power Solutions International, Inc. (?PSI? or ?the Company?) (OTC Pink: PSIX), a leader in the design, engineering and manufacture of emission-certified engines and power systems, announced that it entered into an amended $130.0 million uncommitted senior secured revolving credit ag

March 28, 2022 EX-10.1

Second Amended and Restated Uncommitted Revolving Credit Agreement, dated as of March 25, 2022, among the Company, certain subsidiaries of the Company party thereto, the lenders party thereto and Standard Chartered Bank, as administrative agent.

Exhibit 10.1 Execution Version SECOND AMENDED AND RESTATED UNCOMMITTED REVOLVING CREDIT AGREEMENT dated as of March 25, 2022 among POWER SOLUTIONS INTERNATIONAL, INC., The LOAN PARTIES Party Hereto, The LENDERS Party Hereto, and STANDARD CHARTERED BANK, as Administrative Agent TABLE OF CONTENTS Page ARTICLE I DEFINITIONS 1 SECTION 1.01 Defined Terms 1 SECTION 1.02 Terms Generally 27 SECTION 1.03 A

March 28, 2022 EX-10.2

Second Amended and Restated Shareholder’s Loan Agreement, dated as of March 25, 2022, between the Company and Weichai America Corp.

EX-10.2 Exhibit 10.2 Execution Version SECOND AMENDED AND RESTATED SHAREHOLDER’S LOAN AGREEMENT dated as of March 25, 2022 between POWER SOLUTIONS INTERNATIONAL, INC., as Borrower and WEICHAI AMERICA CORP., as Lender This SECOND AMENDED AND RESTATED SHAREHOLDER’S LOAN AGREEMENT dated as of March 25, 2022 (this “Loan Agreement”), between POWER SOLUTIONS INTERNATIONAL, INC., a Delaware corporation,

February 1, 2022 SC 13G/A

PSIX / Power Solutions International Inc / Gagnon Neil - SC 13G/A Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 8)* Power Solutions International, Inc. (Name of Issuer) Common Stock, par value $0.001 per share (Title of Class of Securities) 73933G202 (CUSIP Number) January 27, 2022 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to de

January 12, 2022 SC 13G/A

PSIX / Power Solutions International Inc / Gagnon Neil - SC 13G/A Passive Investment

SC 13G/A 1 power13ga7.htm SC 13G/A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 7)* Power Solutions International, Inc. (Name of Issuer) Common Stock, par value $0.001 per share (Title of Class of Securities) 73933G202 (CUSIP Number) December 31, 2021 (Date of Event Which Requires Filing of this Statem

December 17, 2021 EX-10.1

Retirement Agreement and Release, dated as of December 14, 2021, between the Company and Kenneth Winemaster

Exhibit 10.1 CONFIDENTIAL RETIREMENT AGREEMENT AND RELEASE This Confidential Retirement Agreement and Release (the ?Agreement?) is entered into between Kenneth Winemaster (?Winemaster?) and Power Solutions International, Inc. (the ?Company?). This Agreement will be effective upon expiration of the revocation period provided in Section 11 of this Agreement (the ?Effective Date?). BACKGROUND 1. Wine

December 17, 2021 EX-99.1

KEN WINEMASTER ANNOUNCES RETIREMENT FROM PSI

Exhibit 99.1 KEN WINEMASTER ANNOUNCES RETIREMENT FROM PSI WOOD DALE, Ill., December 17, 2021 ? Power Solutions International, Inc. (the ?Company? or ?PSI?) (OTC Pink: PSIX), a leader in the design, engineering and manufacture of emission-certified engines and power systems, announced today that after 36 years at PSI, Executive Vice President and Company co-founder, Ken Winemaster is retiring from

December 17, 2021 8-K

Regulation FD Disclosure, Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): December 14, 2021 Power Solutions International, Inc.

December 16, 2021 EX-10.1

Shareholder’s Loan Agreement, dated as of December 10, 2021, between the Company and Weichai America Corp.

EX-10.1 2 d242357dex101.htm EX-10.1 Exhibit 10.1 SHAREHOLDER’S LOAN AGREEMENT dated as of December 10, 2021 between POWER SOLUTIONS INTERNATIONAL, INC., as Borrower and WEICHAI AMERICA CORP., as Lender This SHAREHOLDER’S LOAN AGREEMENT dated as of December 10, 2021 (this “Loan Agreement”), between POWER SOLUTIONS INTERNATIONAL, INC., a Delaware corporation, as Borrower (the “Borrower”), and WEICHA

December 16, 2021 8-K

Regulation FD Disclosure, Entry into a Material Definitive Agreement, Financial Statements and Exhibits, Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): December 10, 2021 Power Solutions International, Inc.

December 16, 2021 EX-99.1

Power Solutions International Announces Additional $50 Million Shareholder Loan Agreement With Weichai America

Exhibit 99.1 Power Solutions International Announces Additional $50 Million Shareholder Loan Agreement With Weichai America WOOD DALE, Ill., December 16, 2021 ? Power Solutions International, Inc. (the ?Company? or ?PSI?) (OTC Pink: PSIX), a leader in the design, engineering and manufacture of emission-certified engines and power systems, announced today that it entered into an additional sharehol

December 13, 2021 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): December 7, 2021 Power Solutions International, Inc. (Exact name of registrant as specified in its charter) Delaware 001-35944 33-0963637 (State or other jurisdiction of incorporation

November 15, 2021 EX-99.1

SAFE HARBOR & OTHER CAUTIONARY NOTES This presentation has been prepared by Power Solutions International, Inc. (PSI) for investors/other parties, solely for informational purposes. The information contained in this presentation does not purport to b

CORPORATE OVERVIEW November 15, 2021 Exhibit 99.1 SAFE HARBOR & OTHER CAUTIONARY NOTES This presentation has been prepared by Power Solutions International, Inc. (PSI) for investors/other parties, solely for informational purposes. The information contained in this presentation does not purport to be all-inclusive or to contain all of the information a prospective or existing investor, or other pa

November 15, 2021 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): November 15, 2021 Power Solutions International, Inc. (Exact name of registrant as specified in its charter) Delaware 001-35944 33-0963637 (State or other jurisdiction of incorporatio

November 12, 2021 EX-99.1

Power Solutions International Announces Third Quarter 2021 Financial Results

Exhibit 99.1 Power Solutions International Announces Third Quarter 2021 Financial Results WOOD DALE, Ill., November 12, 2021 ? Power Solutions International, Inc. (the ?Company? or ?PSI?) (OTC Pink: PSIX), a leader in the design, engineering and manufacture of emission-certified engines and power systems, announced third quarter 2021 financial results. Third Quarter 2021 Results Sales for the thir

November 12, 2021 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): November 12, 2021 Power Solutions International, Inc. (Exact name of registrant as specified in its charter) Delaware 001-35944 33-0963637 (State or other jurisdiction of incorporatio

November 12, 2021 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ? QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2021 or ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 001-35944 POWER SOLUTIONS I

August 11, 2021 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): August 11, 2021 Power Solutions International, Inc. (Exact name of registrant as specified in its charter) Delaware 001-35944 33-0963637 (State or other jurisdiction of incorporation)

August 11, 2021 EX-99.1

Power Solutions International Announces Second Quarter 2021 Financial Results Q2 Sales Increase of 20% Strong Second Half 2021 Sales Anticipated

Exhibit 99.1 Power Solutions International Announces Second Quarter 2021 Financial Results Q2 Sales Increase of 20% Strong Second Half 2021 Sales Anticipated WOOD DALE, Ill., August 11, 2021 ? Power Solutions International, Inc. (the ?Company? or ?PSI?) (OTC Pink: PSIX), a leader in the design, engineering and manufacture of emission-certified engines and power systems, announced second quarter 20

August 11, 2021 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ? QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2021 or ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 001-35944 POWER SOLUTIONS INTERN

July 20, 2021 8-K

Regulation FD Disclosure, Entry into a Material Definitive Agreement, Financial Statements and Exhibits, Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant, Submission of Matters to a Vote of Security Holders

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): July 14, 2021 Power Solutions International, Inc.

July 20, 2021 EX-10.1

Shareholder’s Loan Agreement, dated as of July 14, 2021, between the Company and Weichai America Corp.

EX-10.1 2 d437289dex101.htm EX-10.1 Exhibit 10.1 SHAREHOLDER’S LOAN AGREEMENT dated as of July 14, 2021 between POWER SOLUTIONS INTERNATIONAL, INC., as Borrower and WEICHAI AMERICA CORP., as Lender This SHAREHOLDER’S LOAN AGREEMENT dated as of July 14, 2021 (this “Loan Agreement”), between POWER SOLUTIONS INTERNATIONAL, INC., a Delaware corporation, as Borrower (the “Borrower”), and WEICHAI AMERIC

July 20, 2021 EX-99.1

Power Solutions International Announces Additional $25 Million Shareholder Loan Agreement With Weichai America

Exhibit 99.1 Power Solutions International, Inc. 201 Mittel Drive Wood Dale, Illinois 60191 www.psiengines.com Power Solutions International Announces Additional $25 Million Shareholder Loan Agreement With Weichai America WOOD DALE, Ill., July 20, 2021 ? Power Solutions International, Inc. (the ?Company? or ?PSI?) (OTC Pink: PSIX), a leader in the design, engineering and manufacture of emission-ce

June 1, 2021 DEF 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ? Filed by a Party other than the Registrant ? Check the appropriate box: ? Preliminary proxy statement ? Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ? Defi

June 1, 2021 SD

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM SD SPECIALIZED DISCLOSURE REPORT Power Solutions International, Inc. (Exact name of registrant as specified in its charter) Delaware 001-35944 33-0963637 (State or other jur

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM SD SPECIALIZED DISCLOSURE REPORT Power Solutions International, Inc. (Exact name of registrant as specified in its charter) Delaware 001-35944 33-0963637 (State or other jurisdiction of incorporation or organization) (Commission File Number) (IRS Employer Identification No.) 201 Mittel Drive, Wood Dale, Illinois 60191 (Ad

June 1, 2021 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): June 1, 2021 Power Solutions International, Inc. (Exact name of registrant as specified in its charter) Delaware 001-35944 33-0963637 (State or other jurisdiction of incorporation) (C

June 1, 2021 EX-99.1

SAFE HARBOR & OTHER CAUTIONARY NOTES This presentation has been prepared by Power Solutions International, Inc. (PSI) for investors/other parties, solely for informational purposes. The information contained in this presentation does not purport to b

CORPORATE OVERVIEW June 1, 2021 Exhibit 99.1 SAFE HARBOR & OTHER CAUTIONARY NOTES This presentation has been prepared by Power Solutions International, Inc. (PSI) for investors/other parties, solely for informational purposes. The information contained in this presentation does not purport to be all-inclusive or to contain all of the information a prospective or existing investor, or other party m

June 1, 2021 EX-1.01

Power Solutions International, Inc. Conflict Minerals Report For The Year Ended December 31, 2020

Exhibit 1.01 Power Solutions International, Inc. Conflict Minerals Report For The Year Ended December 31, 2020 This report is provided by Power Solutions International, Inc. (herein referred to as ?PSI? or the ?Company?) for the calendar year ended December 31, 2020 and is presented to comply with Rule 13p-1 under the Securities Exchange Act of 1934, as amended (?Rule 13p-1?). Rule 13p-1 was adopt

June 1, 2021 DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ? Filed by a Party other than the Registrant ? Check the appropriate box: ? Preliminary proxy statement ? Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ? Definitive proxy state

May 12, 2021 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): May 12, 2021 Power Solutions International, Inc. (Exact name of registrant as specified in its charter) Delaware 001-35944 33-0963637 (State or other jurisdiction of incorporation) (C

May 12, 2021 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q x QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2021 or ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 001-35944 POWER SOLUTIONS INTER

May 12, 2021 EX-99.1

Power Solutions International Announces First Quarter 2021 Financial Results

Exhibit 99.1 Power Solutions International, Inc 201 Mittel Drive Wood Dale, Illinois 60191 www.psiengines.com Power Solutions International Announces First Quarter 2021 Financial Results WOOD DALE, Ill., May 12, 2021 ? Power Solutions International, Inc. (the ?Company?) (OTC Pink: PSIX), a leader in the design, engineering and manufacture of emission-certified engines and power systems, announced

May 3, 2021 8-K

Shareholder Director Nominations

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): May 3, 2021 Power Solutions International, Inc.

April 30, 2021 10-K/A

Annual Report - 10-K/A

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K/A Amendment No. 1 ? ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2020 or ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number

March 31, 2021 EX-99.1

Power Solutions International Announces Fourth Quarter and Full Year 2020 Financial Results Company Expects Improved Results in 2021 To Be Driven By Increased Sales Across All End Markets

EX-99.1 Exhibit 99.1 Power Solutions International, Inc. 201 Mittel Drive Wood Dale, Illinois 60191 www.psiengines.com Power Solutions International Announces Fourth Quarter and Full Year 2020 Financial Results Company Expects Improved Results in 2021 To Be Driven By Increased Sales Across All End Markets WOOD DALE, Ill., March 30, 2021 — Power Solutions International, Inc. (“the Company”) (OTC Pi

March 31, 2021 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): March 30, 2021 Power Solutions International, Inc. (Exact name of registrant as specified in its charter) Delaware 001-35944 33-0963637 (State or other jurisdiction of incorporation)

March 30, 2021 10-K

Annual Report - 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K x ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2020 or ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period fromto Commission file number 001-35944 POWER SOLUTIONS INTERNATION

March 30, 2021 EX-21.1

Subsidiaries of Power Solutions International, Inc.

Exhibit 21.1 Power Solutions International, Inc. and Consolidated Subsidiaries 100% Owned Subsidiaries of the Registrant Name Jurisdiction of Organization Professional Power Products, Inc An Illinois Corporation Bi-Phase Technologies, LLC A Minnesota Limited Liability Company Powertrain Integration Acquisition, LLC An Illinois Limited Liability Company The W Group, Inc. A Delaware Corporation *Cor

March 30, 2021 EX-10.27

Description of Long-Term Incentive Plan

Exhibit 10.27 Description of Material Terms of Power Solutions International, Inc. LTI Plan for the period January 1, 2020 to December 31, 2022 Item Explanation Purpose The primary objectives of this plan are to retain employees and align employees? incentives with the Company?s long-term goals. Eligibility Vice President and above or high strategic value. The participants are subject to Board app

March 26, 2021 EX-99.1

Power Solutions International Announces Extension to Credit Agreement

EX-99.1 Exhibit 99.1 Power Solutions International, Inc. 201 Mittel Drive Wood Dale, Illinois 60191 www.psiengines.com Power Solutions International Announces Extension to Credit Agreement WOOD DALE, Ill., March 26, 2021 — Power Solutions International, Inc. (the “Company” or “PSI”) (OTC Pink: PSIX), a leader in the design, engineering and manufacture of emission-certified engines and power system

March 26, 2021 EX-10.1

Amended and Restated Uncommitted Revolving Credit Agreement, dated as of March 26, 2021, among the Company, certain subsidiaries of the Company party thereto, the lenders party thereto and Standard Chartered Bank, as administrative agent.

Exhibit 10.1 Execution Version AMENDED AND RESTATED UNCOMMITTED REVOLVING CREDIT AGREEMENT dated as of March 26, 2021 among POWER SOLUTIONS INTERNATIONAL, INC., The LOAN PARTIES Party Hereto, The LENDERS Party Hereto, and STANDARD CHARTERED BANK, as Administrative Agent TABLE OF CONTENTS Page ARTICLE I DEFINITIONS 1 SECTION 1.01 Defined Terms 1 SECTION 1.02 Terms Generally 29 SECTION 1.03 Accounti

March 26, 2021 EX-10.2

First Amended and Restated Shareholder’s Loan Agreement, dated as of March 26, 2021, between the Company and Weichai America Corp.

Exhibit 10.2 Execution Version FIRST AMENDED AND RESTATED SHAREHOLDER?S LOAN AGREEMENT dated as of March 26, 2021 between POWER SOLUTIONS INTERNATIONAL, INC., as Borrower and WEICHAI AMERICA CORP., as Lender This FIRST AMENDED AND RESTATED SHAREHOLDER?S LOAN AGREEMENT dated as of March 26, 2021 (this ?Loan Agreement?), between POWER SOLUTIONS INTERNATIONAL, INC., a Delaware corporation, as Borrowe

March 26, 2021 8-K

Regulation FD Disclosure, Entry into a Material Definitive Agreement, Financial Statements and Exhibits, Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): March 26, 2021 Power Solutions International, Inc.

March 2, 2021 8-K/A

Submission of Matters to a Vote of Security Holders

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K/A (Amendment No.

February 16, 2021 EX-10.1

Employment Agreement, dated as of February 15, 2021, between the Company and Lance Arnett

Execution Version Exhibit 10.1 EMPLOYMENT AGREEMENT This Employment Agreement (?Agreement?) is dated this 15th day of February 2021, by and between Lance M. Arnett (?Arnett?) and Power Solutions International, Inc. (?Company?). PREAMBLE WHEREAS, Arnett has been employed by Company pursuant to a November 25, 2019 offer letter and subsequently a December 6, 2019 Employment Agreement (?2019 Agreement

February 16, 2021 8-K

Regulation FD Disclosure, Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): February 15, 2021 Power Solutions International, Inc.

February 16, 2021 EX-10.2

Separation Agreement and Release, dated as of February 15, 2021, between the Company and John P. Miller

Execution Copy Exhibit 10.2 SEPARATION AGREEMENT AND RELEASE This Separation Agreement and Release (the ?Agreement?) is entered into between John P. Miller (?Miller?) and Power Solutions International, Inc. (the ?Company?). Miller and the Company are collectively referred to herein as the ?Parties.? This Agreement will be effective upon expiration of the revocation period provided in Section 11 of

February 16, 2021 EX-99.1

Power Solutions International Announces the Appointment of Lance Arnett as its Chief Executive Officer John P. Miller To Retire From the Company

EX-99.1 Exhibit 99.1 Power Solutions International Announces the Appointment of Lance Arnett as its Chief Executive Officer John P. Miller To Retire From the Company WOOD DALE, Ill., February 16, 2021 — Power Solutions International, Inc. (“PSI” or “the Company”) (OTC Pink: PSIX), a leader in the design, engineering and manufacture of emission-certified engines and power systems, announced that ef

February 9, 2021 SC 13G/A

SIGNATURE

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 6)* Power Solutions International, Inc. (Name of Issuer) Common Stock, par value $0.001 per share (Title of Class of Securities) 73933G202 (CUSIP Number) December 31, 2020 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to d

January 25, 2021 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers - 8-K

8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): January 19, 2021 Power Solutions International, Inc.

December 31, 2020 EX-10.1

First Amendment to Credit Agreement and Limited Waiver, dated as of December 28, 2020, among the Company, certain subsidiaries of the Company party thereto, the lenders party thereto and Standard Chartered Bank, as administrative agent.

EX-10.1 Exhibit 10.1 FIRST AMENDMENT TO CREDIT AGREEMENT AND LIMITED WAIVER FIRST AMENDMENT TO CREDIT AGREEMENT AND LIMITED WAIVER, dated as of December 28, 2020 (this “Amendment”) to the Credit Agreement dated as of March 27, 2020 (as the same may be further amended, supplemented or otherwise modified, renewed or replaced from time to time, the “Credit Agreement”) among POWER SOLUTIONS INTERNATIO

December 31, 2020 EX-99.1

Power Solutions International Announces Amendment to Credit Agreement

EX-99.1 Exhibit 99.1 Power Solutions International Announces Amendment to Credit Agreement WOOD DALE, Ill., December 31, 2020 — Power Solutions International, Inc. (“the Company”) (OTC Pink: PSIX), a leader in the design, engineering and manufacture of emission-certified engines and power systems, announced that it entered into a first amendment to its one-year senior secured revolving credit faci

December 31, 2020 8-K

Regulation FD Disclosure, Amendments to Articles of Incorporation or Bylaws; Change in Fiscal Year, Entry into a Material Definitive Agreement, Financial Statements and Exhibits, Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant - 8-K

8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): December 23, 2020 Power Solutions International, Inc.

December 31, 2020 EX-3.1

Second Amended and Restated Bylaws of Power Solutions International, Inc., dated as of December 23, 2020.

EX-3.1 Exhibit 3.1 SECOND AMENDED AND RESTATED BYLAWS OF POWER SOLUTIONS INTERNATIONAL, INC. ARTICLE I OFFICES Section 1.1. Principal and Business Offices. Power Solutions International, Inc. (the “Corporation”) may have such principal and other business offices, either within or outside of the State of Delaware, as the Board of Directors of the Corporation (the “Board of Directors”) may designate

December 31, 2020 EX-10.2

Shareholder’s Loan Agreement, dated as of December 28, 2020, between the Company and Weichai America Corp.

EX-10.2 Exhibit 10.2 SHAREHOLDER’S LOAN AGREEMENT dated as of December 28, 2020 between POWER SOLUTIONS INTERNATIONAL, INC., as Borrower and WEICHAI AMERICA CORP., as Lender This SHAREHOLDER’S LOAN AGREEMENT dated as of December 28, 2020 (this “Loan Agreement”), between POWER SOLUTIONS INTERNATIONAL, INC., a Delaware corporation, as Borrower (the “Borrower”), and WEICHAI AMERICA CORP., an Illinois

December 17, 2020 8-K

Submission of Matters to a Vote of Security Holders - 8-K

8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): December 15, 2020 Power Solutions International, Inc.

November 16, 2020 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): November 16, 2020 Power Solutions International, Inc. (Exact name of registrant as specified in its charter) Delaware 001-35944 33-0963637 (State or other jurisdiction of incorporatio

November 16, 2020 EX-99.1

Power Solutions International Announces Third Quarter 2020 Financial Results Third quarter 2020 sales and gross profit improve sequentially versus second quarter of 2020

Exhibit 99.1 Power Solutions International Announces Third Quarter 2020 Financial Results Third quarter 2020 sales and gross profit improve sequentially versus second quarter of 2020 WOOD DALE, Ill., November 16, 2020 ? Power Solutions International, Inc. (?the Company?) (OTC Pink: PSIX), a leader in the design, engineering and manufacture of emission-certified engines and power systems, announced

November 16, 2020 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): November 16, 2020 Power Solutions International, Inc. (Exact name of registrant as specified in its charter) Delaware 001-35944 33-0963637 (State or other jurisdiction of incorporatio

November 16, 2020 EX-99.1

SAFE HARBOR & OTHER CAUTIONARY NOTES This presentation has been prepared by Power Solutions International, Inc. (PSI) for investors, solely for informational purposes. The information contained in this presentation does not purport to be all-inclusiv

CORPORATE OVERVIEW November 16, 2020 Exhibit 99.1 SAFE HARBOR & OTHER CAUTIONARY NOTES This presentation has been prepared by Power Solutions International, Inc. (PSI) for investors, solely for informational purposes. The information contained in this presentation does not purport to be all-inclusive or to contain all of the information a prospective or existing investor may desire. All of the fin

November 16, 2020 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q x QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2020 or ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 001-35944 POWER SOLUTIONS I

November 12, 2020 SC 13D/A

PSIX / Power Solutions International, Inc. / Winemaster Gary S - SC 13D/A Activist Investment

SC 13D/A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D (Rule 13d-101) Information to be Included in Statements Filed Pursuant to § 240.13d-1(a) and Amendments Thereto Filed Pursuant to § 240.13d-2(a) Under the Securities Exchange Act of 1934 (Amendment No. 18)* POWER SOLUTIONS INTERNATIONAL, INC. (Name of Issuer) Common Stock (Title of Class of Securities) 73

November 5, 2020 DEF 14A

- DEF 14A

DEF 14A Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

November 5, 2020 DEFA14A

- DEFA14A

DEFA14A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary proxy statement ☐ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ☐ Definitive pro

October 5, 2020 8-K

Shareholder Director Nominations - 8-K

8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): October 5, 2020 Power Solutions International, Inc.

September 25, 2020 8-K

Financial Statements and Exhibits, Other Events - 8-K

8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): September 24, 2020 Power Solutions International, Inc. (Exact name of registrant as specified in its charter) Delaware 001-35944 33-0963637 (State or other jurisdiction of incorpo

September 25, 2020 EX-99.3

UNITED STATES OF AMERICA Before the SECURITIES AND EXCHANGE COMMISSION

EX-99.3 Exhibit 99.3 UNITED STATES OF AMERICA Before the SECURITIES AND EXCHANGE COMMISSION SECURITIES EXCHANGE ACT OF 1934 Release No. 89984 / September 24, 2020 ACCOUNTING AND AUDITING ENFORCEMENT Release No. 4169 / September 24, 2020 ADMINISTRATIVE PROCEEDING File No. 3-20062 ORDER INSTITUTING CEASE-AND- In the Matter of DESIST PROCEEDINGS, PURSUANT TO SECTION 21C OF THE SECURITIES POWER SOLUTI

September 25, 2020 EX-99.2

September 24, 2020

EX-99.2 Exhibit 99.2 U.S. Department of Justice United States Attorney Northern District of Illinois L. Heidi Manschreck Assistant United States Attorney Dirksen Federal Courthouse 219 South Dearborn Street, Fifth Floor Chicago, Illinois 60604 Direct Line: (312) 469-6205 Fax: (312) 469-6198 E-mail: [email protected] September 24, 2020 David Hoffman Sidley Austin LLP One South Dearborn Ch

September 25, 2020 EX-99.1

Power Solutions International Announces Settlements with the USAO and SEC to Resolve Previously Disclosed Investigations Company is committed to the full remediation of its internal controls and the enhancement of its corporate compliance program

EX-99.1 Exhibit 99.1 Power Solutions International Announces Settlements with the USAO and SEC to Resolve Previously Disclosed Investigations Company is committed to the full remediation of its internal controls and the enhancement of its corporate compliance program WOOD DALE, Ill., September 24, 2020 — Power Solutions International, Inc. (“the Company” or “PSI”) (OTC Pink: PSIX), a leader in the

August 14, 2020 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition - 8-K

8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): August 14, 2020 Power Solutions International, Inc. (Exact name of registrant as specified in its charter) Delaware 001-35944 33-0963637 (State or other jurisdiction of incorporat

August 14, 2020 10-Q

Quarterly Report - 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q x QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2020 or ¨ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 001-35944 POWER SOLUTIONS INTERN

August 14, 2020 EX-99.1

Power Solutions International Announces Second Quarter and First Half 2020 Financial Results

EX-99.1 Exhibit 99.1 Power Solutions International, Inc. 201 Mittel Drive Wood Dale, Illinois 60191 www.psiengines.com Power Solutions International Announces Second Quarter and First Half 2020 Financial Results WOOD DALE, Ill., August 14, 2020 — Power Solutions International, Inc. (“the Company”) (OTC Pink: PSIX), a leader in the design, engineering and manufacture of emission-certified engines a

August 4, 2020 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers

8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): July 30, 2020 Power Solutions International, Inc.

July 24, 2020 EX-10.1

Consulting Agreement and Release, dated as of July 20, 2020 between the Company and Charles F. Avery, Jr.

EX-10.1 Exhibit 10.1 Final Execution copy CONSULTING AGREEMENT AND RELEASE This Consulting Agreement and Release (the “Agreement”) is entered into between Charles F. Avery, Jr. (“Avery”) and Power Solutions International, Inc. (the “Company”). Avery and the Company are collectively referred to herein as the “Parties.” This Agreement will be effective upon expiration of the revocation period provid

July 24, 2020 8-K

Regulation FD Disclosure, Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits

8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): July 20, 2020 Power Solutions International, Inc.

July 24, 2020 EX-99.1

Power Solutions International Announces the Appointment of Donald P. Klein as its Interim Chief Financial Officer

EX-99.1 Exhibit 99.1 Power Solutions International, Inc. 201 Mittel Drive Wood Dale, Illinois 60191 www.psiengines.com Power Solutions International Announces the Appointment of Donald P. Klein as its Interim Chief Financial Officer WOOD DALE, Ill., July 24, 2020 — Power Solutions International, Inc. (“PSI” or “the Company”) (OTC Pink: PSIX), a leader in the design, engineering and manufacture of

June 30, 2020 10-Q

Quarterly Report - 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q x QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2020 or ¨ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 001-35944 POWER SOLUTIONS INTER

June 30, 2020 EX-99.1

Power Solutions International Announces First Quarter 2020 Financial Results and the Filing of its Form 10-Q Gross margin improvement of 1.6 percentage points in Q1 2020 versus last year; Operating cash flow of approximately $24 million contributes t

EX-99.1 Exhibit 99.1 Power Solutions International Announces First Quarter 2020 Financial Results and the Filing of its Form 10-Q Gross margin improvement of 1.6 percentage points in Q1 2020 versus last year; Operating cash flow of approximately $24 million contributes to $22 million decline in debt during the quarter WOOD DALE, Ill., June 30, 2020 — Power Solutions International, Inc. (“the Compa

June 30, 2020 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): June 30, 2020 Power Solutions International, Inc. (Exact name of registrant as specified in its charter) Delaware 001-35944 33-0963637 (State or other jurisdiction of incorporatio

June 15, 2020 10-K/A

Annual Report - 10-K/A

10-K/A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K/A Amendment No. 1 ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2019 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 001-35944 P

June 1, 2020 EX-1.01

Power Solutions International, Inc. Conflict Minerals Report For The Year Ended December 31, 2019

EX-1.01 Exhibit 1.01 Power Solutions International, Inc. Conflict Minerals Report For The Year Ended December 31, 2019 This report is provided by Power Solutions International, Inc. (herein referred to as “PSI” or the “Company”) for the calendar year ended December 31, 2019 and is presented to comply with Rule 13p-1 under the Securities Exchange Act of 1934, as amended (“Rule 13p-1”). Rule 13p-1 w

June 1, 2020 SD

- SD

SD UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM SD SPECIALIZED DISCLOSURE REPORT Power Solutions International, Inc. (Exact name of registrant as specified in its charter) Delaware 001-35944 33-0963637 (State or other jurisdiction of incorporation or organization) (Commission File Number) (IRS Employer Identification No.) 201 Mittel Drive, Wood Dale, Illinois 60191

May 15, 2020 8-K

Other Events

8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): May 15, 2020 Power Solutions International, Inc.

May 4, 2020 10-Q

Quarterly Report - 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q x QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2019 or ¨ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 001-35944 POWER SOLUTIONS INTER

May 4, 2020 10-Q

Quarterly Report - 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q x QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2019 or ¨ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 001-35944 POWER SOLUTIONS INTERN

May 4, 2020 EX-4.11

Description of the registrant’s securities registered pursuant to Section 12 of the Securities Exchange Act of 1934.

Exhibit 4.11 DESCRIPTION OF THE REGISTRANT’S SECURITIES REGISTERED PURSUANT TO SECTION 12 OF THE SECURITIES EXCHANGE ACT OF 1934 The following summary of Power Solutions International, Inc.’s (the “Company”) capital stock is based upon certain provisions of the Company’s certificate of incorporation (the “Charter”), the Company’s amended and restated bylaws (the “Bylaws”) and certain provisions of

May 4, 2020 10-Q

Quarterly Report - 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q x QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2019 or ¨ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 001-35944 POWER SOLUTIONS I

May 4, 2020 EX-99.2

SAFE HARBOR & OTHER CAUTIONARY NOTES This presentation has been prepared by Power Solutions International, Inc. (PSI) for investors, solely for informational purposes. The information contained in this presentation does not purport to be all-inclusiv

EX-99.2 CORPORATE OVERVIEW May 4, 2020 Exhibit 99.2 SAFE HARBOR & OTHER CAUTIONARY NOTES This presentation has been prepared by Power Solutions International, Inc. (PSI) for investors, solely for informational purposes. The information contained in this presentation does not purport to be all-inclusive or to contain all of the information a prospective or existing investor may desire. All of the f

May 4, 2020 EX-21.1

Subsidiaries of Power Solutions International, Inc.

Exhibit 21.1 Power Solutions International, Inc. and Consolidated Subsidiaries 100% Owned Subsidiaries of the Registrant Name Jurisdiction of Organization Professional Power Products, Inc An Illinois Corporation Bi-Phase Technologies, LLC A Minnesota Limited Liability Company Powertrain Integration Acquisition, LLC An Illinois Limited Liability Company The W Group, Inc. A Delaware Corporation PSI

May 4, 2020 EX-10.1

Confidential Consulting Agreement

CONFIDENTENTIAL CONSULTING AGREEMENT AND RELEASE This Confidential Consulting Agreement and Release (the “Agreement”) is entered into between William Buzogany (“Buzogany”) and Power Solutions International, Inc.

May 4, 2020 10-K

Annual Report - 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K x ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2019 or ¨ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period fromto Commission file number 001-35944 POWER SOLUTIONS INTERNATION

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