Group 1 - The independent directors of Zhuzhou Smelter Group Co., Ltd. held a special meeting on August 12, 2025, to review matters submitted to the company's eighth board of directors' twelfth meeting [1] - The risk assessment report for Minmetals Group Financial Co., Ltd. was reviewed, confirming that the financial company operates in compliance with regulations and has no significant risk management deficiencies [1] - The proposal to adjust the estimated amount of daily related transactions for 2025 was approved, ensuring that the transactions do not adversely affect the company's financial status or independence [2] Group 2 - The proposal to reappoint an accounting firm was approved, with Tianzhi International Accounting Firm meeting the necessary qualifications and independence requirements for auditing services [2][3]

Core Viewpoint - The company has decided to change its accounting firm from Zhihong Accounting Firm to Tianzhi International Accounting Firm for the 2025 financial year, based on operational needs and audit service requirements [1][6]. Group 1: Accounting Firm Change - The new accounting firm to be appointed is Tianzhi International Accounting Firm (Special General Partnership) [1]. - The previous accounting firm was Zhihong Accounting Firm (Special General Partnership) [1]. - The change is based on a comprehensive evaluation of the company's operational needs and audit service requirements, with no objections from the previous firm [1][6]. Group 2: Tianzhi International Accounting Firm Overview - Tianzhi International was established as a large comprehensive consulting institution, providing services in various areas including tax and legal services, and has been engaged in securities services for over 20 years [2]. - As of December 31, 2024, Tianzhi International has 90 partners and 1,097 registered accountants, with 399 having signed audit reports for securities services [2]. - The total audited revenue for Tianzhi International in 2024 was 2.501 billion yuan, with audit service revenue of 1.938 billion yuan and securities service revenue of 912 million yuan [2]. Group 3: Audit Fees and Services - The company plans to pay Tianzhi International 580,000 yuan for financial audit services and 120,000 yuan for internal control audit services, totaling 700,000 yuan [5]. - The audit fees were determined based on market pricing principles, considering the company's business scale and the required audit personnel [5]. Group 4: Previous Accounting Firm Performance - The previous firm, Zhihong Accounting Firm, provided audit services for two years and issued standard unqualified audit reports for 2023 and 2024 [6]. - There were no instances of the company terminating the previous firm after commissioning part of the audit work [6]. Group 5: Approval Process - The audit committee reviewed Tianzhi International's qualifications, professional competence, and independence, concluding that it is suitable for providing audit services to the company [7]. - The board of directors approved the change with a unanimous vote of 9 in favor [7]. - The change will take effect upon approval by the company's shareholders [8].