2025 Annual Assessment of Accountant Performance and Report on the Audit Committee's Fulfillment of Supervisory Duties

Wuxi Chemical Equipment Co., Ltd.

2025 Annual Assessment of Accountant Performance and Report on the Audit Committee's Fulfillment of Supervisory Duties

In 2025, the Audit Committee of the Board of Directors of Wuxi Chemical Equipment Co., Ltd. (hereinafter referred to as the "Company") has diligently performed its duties and fully exercised its professional functions and supervisory role, in accordance with the "Administrative Measures for the Selection and Appointment of Accounting Firms by State-owned Enterprises and Listed Companies," the "Administrative Measures for Independent Directors of Listed Companies," the "Shenzhen Stock Exchange Listed Company Self-regulatory Management Guide No. 1 – Standardized Operation of Main Board Listed Companies," and other laws, administrative regulations, normative documents, as well as the "Company Articles of Association" and the "Audit Committee Work Rules." The following is a report on the Audit Committee's performance evaluation of the accounting firm for 2025 and its fulfillment of supervisory duties:

I. Basic Information on the Company's Appointment of Accounting Firm for 2025

(I) Institutional Information

1. Basic Information Institution Name: Beijing Dehao International Certified Public Accountants LLP (Special General Partnership) (hereinafter referred to as "Beijing Dehao International") Date of Establishment: December 8, 2008 Organizational Form: Special General Partnership Registered Address: Room 519A, 5th Floor, 31 Fuchengmenwai Street, Xicheng District, Beijing Chief Partner: Zhao Huanqi As of December 31, 2025, Beijing Dehao International had 72 partners and 296 certified public accountants, of whom 165 had signed audit reports for securities services. In 2025, the total revenue was RMB 401.0958 million (unaudited, same below), audit business revenue was RMB 303.9708 million, and securities business revenue was RMB 174.2874 million. The firm audited the annual reports of 129 listed companies in 2025, mainly in the manufacturing, information transmission, software and information technology services, scientific research and technical services, water conservancy, environmental protection and public facility management, wholesale and retail industries. The number of audit clients for listed companies in the same industry as our company is 87.

2. Investor Protection Capability

Professional liability insurance reserve at the end of the previous year: RMB 1.0535 million; the cumulative insured amount of professional liability insurance purchased is RMB 300 million. The provision for the professional liability insurance reserve and the purchase of professional liability insurance comply with relevant regulations. There have been no civil lawsuits in the past three years where the firm was held liable for its professional conduct.

1. Integrity Record As of December 31, 2025, Beijing Dehao International had received 0 criminal penalties, 0 administrative penalties, 2 administrative supervision measures, 0 self-regulatory measures, 0 disciplinary actions, and 0 industry sanctions in the past three years due to its professional conduct. During this period, 32 practitioners received 24 administrative supervision measures, 6 self-regulatory measures, 2 administrative penalties, 1 disciplinary action, and 1 industry sanction in the past three years due to their professional conduct (excluding 1 administrative supervision measure, 1 administrative penalty, and 1 industry sanction, which occurred outside their practice at the firm).

(II) Project Information