Weichai America Corp.

13D and 13G Filings

Issuer	Symbol	CUSIP	% of Class	Shares	Form	Filed
Power Solutions International, Inc. 13D/A Amendment 9 PSIX · 73933G202	PSIX	73933G202	46.5%	10,716,152	13D/A Amendment 9	8/28/2025 Event 8/26/2025
Weichai America Corp.			46.5%	10,716,152
Weichai Power Co., Ltd.			46.5%	10,716,152
Shandong Heavy Industry Group Co., Ltd.			46.5%	10,716,152
Power Solutions International, Inc. 13D/A Amendment 8 PSIX · 73933G202	PSIX	73933G202	47.5%	10,948,835	13D/A Amendment 8	8/25/2025 Event 8/21/2025
Weichai America Corp.			47.5%	10,948,835
Weichai Power Co., Ltd.			47.5%	10,948,835
Shandong Heavy Industry Group Co., Ltd.			47.5%	10,948,835
Power Solutions International, Inc. 13D/A Amendment 7 PSIX · 73933G202	PSIX	73933G202	48.7%	11,211,841	13D/A Amendment 7	8/19/2025 Event 8/15/2025
Weichai America Corp.			48.7%	11,211,841
Weichai Power Co., Ltd.			48.7%	11,211,841
Shandong Heavy Industry Group Co., Ltd.			48.7%	11,211,841
Power Solutions International, Inc. 13D/A Amendment 6 PSIX · 73933G202	PSIX	73933G202	49.8%	11,463,824	13D/A Amendment 6	8/15/2025 Event 8/13/2025
Weichai America Corp.			49.8%	11,463,824
Weichai Power Co., Ltd.			49.8%	11,463,824
Shandong Heavy Industry Group Co., Ltd.			49.8%	11,463,824

Includes filings since 12/18/2024, when the SEC began requiring structured 13D and 13G data.