Meeting Details - The third extraordinary general meeting of shareholders for Zhejiang Shengda Biological Pharmaceutical Co., Ltd. will be held on September 10, 2025, at 14:00 [1] - The meeting will take place at the company's conference room located at 18 Shifeng East Road, Fuxi Street, Tiantai County, Zhejiang Province [1] - Voting will be conducted both on-site and via the Shanghai Stock Exchange network voting system during specified time slots on the same day [2] Meeting Procedures - The meeting will follow the company's articles of association and relevant laws to ensure order and efficiency [1] - Shareholders must present identification and relevant documents to attend the meeting [2] - Non-cumulative voting will be used, with each share granting one vote [3] Agenda Items - The primary agenda item is the appointment of the auditing firm for the fiscal year 2025 [4] - The company proposes to appoint Grant Thornton (Zhonghua) Certified Public Accountants LLP as the new auditor, replacing Tianjian Certified Public Accountants [7] - The proposed audit fee for 2025 is set at 1.1 million yuan, which includes 1 million yuan for financial report auditing and 100,000 yuan for internal control auditing [6] Auditor Background - Grant Thornton was established in 1981 and has a significant number of partners and registered accountants [4] - The firm has a total revenue of 2.614 billion yuan, with 2.103 billion yuan from audit services [4] - The company has had no criminal penalties against its auditors in the past three years, with minimal administrative penalties [6] Transition of Auditors - The change in auditors is based on the need for fresh perspectives and expertise as the company grows [7] - Both the outgoing and incoming auditors have been informed of the transition, and there are no objections [8] - The transition is expected to have no negative impact on the annual audit process [8]

Core Viewpoint - The company intends to change its accounting firm from Tianjian to RSM China, citing the need for a more suitable audit partner for its business development and future audit requirements [1][4]. Group 1: Accounting Firm Change - The new accounting firm to be appointed is RSM China, while the previous firm was Tianjian [1]. - The change is based on regulations from the Ministry of Finance, State-owned Assets Supervision and Administration Commission, and the China Securities Regulatory Commission, as well as the company's internal selection system [4]. - Tianjian has no objections to the change, and the company has communicated thoroughly with both the outgoing and incoming firms [4][5]. Group 2: RSM China Overview - RSM China was established in 1981 and has 239 partners and 1,359 certified public accountants as of the end of the previous year [1][2]. - The firm reported total revenue of 2.614 billion yuan, with audit service revenue of 2.103 billion yuan and securities service revenue of 482 million yuan [1][2]. - RSM China has 297 clients and has not faced any civil liability in the last three years related to its professional conduct [2][3]. Group 3: Audit Committee and Board Approval - The audit committee has reviewed RSM China's professional competence, independence, and integrity, concluding that the firm is suitable for the company's audit needs [5]. - The board has approved the proposal to appoint RSM China for the 2025 financial audit and internal control audit, pending shareholder approval [5][6]. - The appointment will take effect upon approval from the shareholders' meeting [6].