---
schema_version: "secwatch.filing_event.v1"
accession: "0001193125-23-085505"
form_type: "8-K"
ticker: "PSIX"
cik: "0001137091"
company_name: "POWER SOLUTIONS INTERNATIONAL, INC."
filed_at: "2023-03-30T23:59:59+00:00"
generated_at: "2026-06-17T08:55:45.319502+00:00"
event_type: "leadership"
sentiment: "neutral"
materiality_score: 0.55
calibrated_materiality_score: 0.55
confidence: "high"
source: SEC EDGAR
---

# Power Solutions International appoints Jiwen Zhang as Chairman; Mozzi resigns

## Summary
- Fabrizio Mozzi resigned as Chairman and from Board effective March 29, 2023; no disagreement with company.
- Shaojun Sun resigned as Vice Chairman but remains on Board.
- Jiwen Zhang appointed to Board and as Chairman; designee of majority stockholder Weichai America Corp.
- Jiwen Zhang has over 20 years engine industry experience; currently Chairman/CEO of Weichai America.
- Jiwen Zhang receives annual retainer of $75,000 (incl. $25,000 for Chairman) plus $1,500 per meeting.

## SEC filing metadata
- accession: 0001193125-23-085505
- form_type: 8-K
- ticker: PSIX
- cik: 0001137091
- company_name: POWER SOLUTIONS INTERNATIONAL, INC.
- filed_at: 2023-03-30T23:59:59+00:00
- event_type: leadership
- sentiment: neutral
- materiality_score: 0.55
- calibrated_materiality_score: 0.55
- confidence: high
- sec_items: 5.02
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1137091/000119312523085505/0001193125-23-085505-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1137091/000119312523085505/d476939d8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001193125-23-085505
- JSON: https://secwatch.observer/filing/0001193125-23-085505.json
- Plain text: https://secwatch.observer/filing/0001193125-23-085505.txt

## Key facts
- Executive change
  Shaojun Sun resigned as Vice Chairman of the Board at POWER SOLUTIONS INTERNATIONAL, INC..
  - Action: resigned
  - Role: Vice Chairman of the Board
  source text: Also on the Effective Date, Shaojun Sun resigned as Vice Chairman of the Board but will continue to serve as a member of the Board.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1137091/000119312523085505/0001193125-23-085505-index.htm
- Executive change
  Jiwen Zhang was appointed as Chairman of the Board at POWER SOLUTIONS INTERNATIONAL, INC..
  - Action: appointed
  - Role: Chairman of the Board
  source text: Further, on the Effective Date, the Board appointed Jiwen Zhang to the Board and to serve as Chairman of the Board.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1137091/000119312523085505/0001193125-23-085505-index.htm
- Executive change
  Fabrizio Mozzi resigned as Chairman of the Board at POWER SOLUTIONS INTERNATIONAL, INC..
  - Action: resigned
  - Role: Chairman of the Board
  source text: Effective March 29, 2023 (the “Effective Date”), Fabrizio Mozzi resigned from the Board of Directors (the “Board”) of Power Solutions International, Inc. (the “Company” or “PSI”).
  evidence_url: https://www.sec.gov/Archives/edgar/data/1137091/000119312523085505/0001193125-23-085505-index.htm

This AI-assisted summary is a reading aid. Review the linked SEC EDGAR filing before relying on any specific claim.