Changchai Company Limited(000570) : annual verification report on the use of raised funds

Gongzheng Tianye Certified Public Accountants (special general partnership), SGP

China. Jiangsu Wuxi Wuxi Jiangsu . China

Switchboard: 86 (510) 68798988 Tel: 86 (510) 68798988

Fax: 86 (510) 68567788 Fax: 86 (510) 68567788

Email: [email protected]. E-mail: [email protected].

Verification report on the deposit and use of raised funds

Sugong w [2022] e1141 Changchai Company Limited(000570) all shareholders:

We are entrusted to verify the attached special report on the deposit and actual use of raised funds (hereinafter referred to as the “special report on raised funds”) of Changchai Company Limited(000570) (hereinafter referred to as Changchai Co., Ltd.) in 2021.

1、 Restrictions on the users and purposes of the report

This assurance report is only used for the disclosure of the annual report of Changchai Co., Ltd. and shall not be used for any other purpose. We agree to take this assurance report as a necessary document for the annual report of Changchai Co., Ltd., submit it together with other documents and disclose it to the public.

2、 Responsibilities of the board of directors

The responsibility of the board of directors of Changchai Co., Ltd. is to provide true, legal and complete relevant materials in accordance with the regulatory guidelines for listed companies No. 2 – regulatory requirements for the management and use of raised funds by listed companies (revised in 2022) of China Securities Regulatory Commission Prepare the special report on raised funds in accordance with the provisions of self regulatory guidelines for listed companies of Shenzhen Stock Exchange No. 1 – standardized operation of listed companies on the main board and relevant format guidelines, and ensure that its content is true, accurate and complete without false records, misleading statements or major omissions.

3、 Responsibilities of Certified Public Accountants

Our responsibility is to put forward the assurance conclusion of the above special report on raised funds prepared by the board of directors of Changchai Co., Ltd. on the basis of the implementation of the assurance work.

4、 Job overview

We have carried out the assurance business in accordance with the provisions of other assurance business standards for Chinese certified public accountants No. 3101 – assurance business other than audit or review of historical financial information. The code requires us to plan and implement

Notarial Tianye Certified Public Accountants

To obtain reasonable assurance on whether the information of the assurance object is free from material misstatement. In the process of assurance, we conducted prudent investigation and implemented procedures that we considered necessary, including checking accounting records. We believe that our assurance work provides a reasonable basis for expressing opinions.

5、 Assurance conclusion

We believe that the 2021 special report on raised funds prepared by the board of directors of Changchai Co., Ltd. complies with the provisions of the regulatory guidelines for listed companies No. 2 – regulatory requirements for the management and use of raised funds by listed companies (revised in 2022), the self regulatory guidelines for listed companies of Shenzhen Stock exchange No. 1 – standardized operation of listed companies on the main board and relevant format guidelines, Truthfully reflect the actual deposit and use of the raised funds of Changchai Co., Ltd. in 2021 in all major aspects.

Notarized Tianye certified public accountants China Certified Public Accountants

(special general partnership) (project partner)

Chinese certified public accountant

Wuxi, China April 11, 2022

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