Weichai Power Co., Ltd. — Proxy Solicitation & Information Statement 2006

Dec 15, 2006

SUPPLEMENTAL NOTICE OF THE WEICHAI POWER SHAREHOLDERS’ EGM

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WEICHAI POWER CO., LTD.

(a joint stock limited company incorporated in the People’s Republic of China with limited liability)

(Stock Code: 2338)

SUPPLEMENTAL NOTICE OF EXTRAORDINARY GENERAL MEETING OF THE SHAREHOLDERS OF WEICHAI POWER CO., LTD.

NOTICE IS HEREBY GIVEN that the extraordinary general meeting (the ‘‘Weichai Power Shareholders’ EGM’’) of Weichai Power Co., Ltd. (the ‘‘Company’’), which will be held at the Company’s conference room at 26 Minsheng East Street, Weifang, Shandong Province, the People’s Republic of China (the ‘‘PRC’’) on 29 December 2009 at 10: 00 a.m., will consider and, if thought fit, approve the additional resolution set out below. Unless the context requires otherwise, terms defined in the circular to the shareholders of the Company dated 12 November 2006 (the ‘‘Circular’’) shall have the same meanings when used herein.

AS ORDINARY RESOLUTION:

1. (a) ‘‘THAT the appointment of Mr. Gu Linsheng ( ) as an independent non-executive director of the Company for a term as from the date of completion of the Merger Proposal (as defined in the circular of the Company dated 12 November 2006) (if completed) until 17 December 2008 (both date inclusive) be and is hereby approved’’.

2. (b) ‘‘THAT the appointment of Mr. Li Shihao ( ) as an independent non-executive director of the Company for a term as from the date of completion of the Merger Proposal (as defined in the circular of the Company dated 12 November 2006) (if completed) until 17 December 2008 (both date inclusive) be and is hereby approved’’.

3. (c) ‘‘THAT the appointment of Mr. Liu Zheng ( ) as an independent non-executive director of the Company for a term as from the date of completion of the Merger Proposal (as defined in the circular of the Company dated 12 November 2006) (if completed) until 17 December 2008 (both date inclusive) be and is hereby approved’’.

By Order of the Board of Directors Weichai Power Co., Ltd. Zhang Yuanfu Company Secretary

Hong Kong, 14 December 2006

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SUPPLEMENTAL NOTICE OF THE WEICHAI POWER SHAREHOLDERS’ EGM

Notes:

• (A) A form of proxy in respect of the above ordinary resolution is enclosed with this notice.

• (B) Please refer to the notice dated 12 November 2006 of the Weichai Power Shareholders’ EGM contained in the Circular for details in respect of the other resolutions to be considered at the Weichai Power Shareholders’ EGM, eligibility of attendance, registration procedure, proxy and other relevant matters.

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