Tongda Co., Ltd.

Announcement on Participation in the 2026 Online Collective Reception Day for Investors of Listed Companies in Shandong

Announcement on the implementation of the 2025 annual equity distribution by Shandong Tongda Island New Materials Co., Ltd.

Notice on the postponement of the Board of Directors' re-election

Announcement of the Resolutions of the 17th Meeting of the Sixth Board of Directors

Quarterly Report for Q1 2026

Legal Opinion from Beijing Tongshang Law Firm for the 2025 Annual Shareholders' Meeting of Shandong Tongda Haidao New Materials Co., Ltd.

Announcement of Resolutions from the 2025 Annual Shareholders' Meeting

Pre-disclosure Announcement on Share Reduction by Shareholders Holding More Than 5%

Simplified equity change report (revised) of Shandong Tongda Group Co., Ltd.

Detailed equity change report (revised) of Qingdao Zhuoyue Mingliang New Materials Technology Partnership (Limited Partnership)

Financial advisor's verification opinion (revised) on the detailed equity change report of Shandong Tongda Haidao New Materials Co., Ltd. by Beijing Boxing Securities Investment Consulting Co., Ltd.

Announcement on Shareholders Signing the 'Supplementary Agreement on Share Transfer'

Announcement on Re-appointment of the Audit Firm for 2026

2025 Independent Director Performance Report (Wang Jing)

2025 Independent Director Performance Report (Tian Jingyan)

2025 Independent Director Performance Report (Feng Linjun)

Announcement on Holding the 2025 Online Performance Briefing

Tongda Co., Ltd. Internal Control Audit Report

2025 Internal Control Evaluation Report

Directors and Senior Management Compensation Management System

Announcement on Accrual of Credit Impairment Provisions and Asset Impairment Provisions for 2025

Independent Director Nominator Statement and Commitment

Announcement on By-election of Independent Directors

Independent Director Candidate Statement and Commitment

Feasibility Analysis Report on Conducting Financial Derivative Trading Business

Announcement on Conducting Financial Derivative Trading Business

Tongda Co., Ltd. 2025 Annual General Meeting Notice

2025 Financial Final Accounts Report

Resolutions Announcement of the 16th Meeting of the Sixth Board of Directors

Announcement on the 2025 Profit Distribution Plan