Tianshui Zhongxing Bio-Technology Co.Ltd(002772) : Announcement on change of signing certified public accountant

Stock Code: Tianshui Zhongxing Bio-Technology Co.Ltd(002772) stock abbreviation: Tianshui Zhongxing Bio-Technology Co.Ltd(002772) Announcement No.: 2022015 bond Code: 128026 bond abbreviation: Zhongxing convertible bond

Tianshui Zhongxing Bio-Technology Co.Ltd(002772)

Announcement on change of signature certified public accountant

The company and all members of the board of directors guarantee that the information disclosed is true, accurate and complete without false records, misleading statements or major omissions.

Tianshui Zhongxing Bio-Technology Co.Ltd(002772) (hereinafter referred to as “the company”) held the 36th meeting of the third board of directors and the 22nd Meeting of the third board of supervisors on March 25, 2021, deliberated and adopted the proposal on renewing the appointment of the company’s audit institution in 2021, It is agreed to renew the appointment of China audit Zhonghuan Certified Public Accountants (special general partnership) (hereinafter referred to as “China audit Zhonghuan”) as the audit institution of the company in 2021. This matter has been deliberated and approved by the 2020 annual general meeting of shareholders held on April 16, 2021. For details of the announcement on renewing the appointment of accounting firm (Announcement No.: 2021015), please refer to the information disclosure media designated by the company on March 26, 2021, such as securities times, Shanghai Securities News and cninfo.com( http://www.cn.info.com.cn. )。 1、 Change of signature CPA

Recently, the company received the letter on changing the certified public accountant with Tianshui Zhongxing Bio-Technology Co.Ltd(002772) signature from Zhongshen Zhonghuan. As the audit institution of the company in 2021, Zhongshen Zhonghuan originally appointed Huang Liqiong (project partner) and Zhang Ling as the signing certified public accountants to provide audit services for the company. In view of the resignation of Zhang Ling, the original signing certified public accountant, and the adjustment of the internal practice of Zhongshen Zhonghuan, an suqiang (project partner) and Yang Yichen are hereby appointed as the signing certified public accountants to be responsible for the audit of the company’s financial statements in 2021. After this change, the signing certified public accountants are an suqiang (project partner) and Yang Yichen.

2、 Signed CPA information after this change

1. Basic information

Project partner (signature certified public accountant): an suqiang, who became a certified public accountant in October 2007, has been engaged in the audit industry since August 2004, engaged in securities business audit in December 2005, and has been engaged in securities business for 15 years, with corresponding professional competence. He began to practice in Zhongshen Zhonghuan certified public accountants in 2013.

Signature certified public accountant: Yang Yichen, who became a certified public accountant in July 2020, has been engaged in the audit industry since December 2017, engaged in securities business audit in December 2018 and has been engaged in securities business for 3 years, with corresponding professional competence. He began to practice in Zhongshen Zhonghuan certified public accountants in 2017.

2. Integrity record

An suqiang and Yang Yichen have not been subject to criminal punishment, administrative punishment, administrative supervision measures and self-discipline punishment in the past three years.

3. Independence

There are no circumstances that may affect the independence of the central audit Zhonghuan and the signing certified public accountants an suqiang and Yang Yichen. 3、 Other instructions

During this change, the relevant work arrangements are handed over in an orderly manner, and the changes will not have an adverse impact on the company’s audit work in 2021.

4、 Documents for future reference

Letter on change of Tianshui Zhongxing Bio-Technology Co.Ltd(002772) signed certified public accountant issued by Zhongshen Zhonghuan Certified Public Accountants (special general partnership)

It is hereby announced

Tianshui Zhongxing Bio-Technology Co.Ltd(002772) board of directors March 10, 2022

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