Jiangsu Tunan Alloy Co., Ltd.
Board of Directors' Audit Committee Report on the Performance of Supervisory Duties for the 2025 Annual Audit Accountant Firm
In accordance with the "Administrative Measures for the Selection of Accountant Firms by State-owned Enterprises and Listed Companies," the "Shenzhen Stock Exchange Listed Company Self-Regulatory Management Guidelines No. 2 - Normative Operation of GEM Listed Companies," and other laws, regulations, normative documents, as well as the Company's Articles of Association and the Company's "Audit Committee Work Rules" and "Accountant Firm Selection System," the Audit Committee of the Board of Directors of Jiangsu Tunan Alloy Co., Ltd. (hereinafter referred to as the "Company") has, in a diligent and responsible manner, supervised the performance of its duties by Suya Jincheng Certified Public Accountants (Special General Partnership) (hereinafter referred to as "Suya Jincheng"), the accounting firm appointed by the Company for the 2025 audit, and has evaluated its performance. The specific situation is reported as follows:
I. Basic Information of the Accountant Firm
(I) Basic Information of the Accountant Firm
Suya Jincheng was formerly Jiangsu Suya Audit Firm, founded in May 1996, and was approved to transform into a special general partnership on December 2, 2013. Suya Jincheng's registered address is located on the 14th to 16th floors of Zhengtai Central Building, No. 159 Taishan Road, Jianye District, Nanjing. The chief partner is Mr. Yu Longbin.
As of December 31, 2025, Suya Jincheng has 44 partners and 231 certified public accountants, of whom 132 have signed audit reports for securities services. In 2025, Suya Jincheng's audited total revenue was RMB 208.2724 million, of which audit service revenue was RMB 158.8245 million and securities service revenue was RMB 395.289 million. In 2025, Suya Jincheng provided annual report audit services to 12 listed companies, with total audit fees of RMB 28.8572 million. The main industries involved include electrical machinery and equipment manufacturing, general equipment manufacturing, wholesale, special equipment manufacturing, and instrument and meter manufacturing. In 2025, there were no other listed company audit clients in the same industry as the Company.
(II) Procedures for Appointing the Accountant Firm