Guotai Environmental Protection Co., Ltd.

Voluntary Information Disclosure Management System

Legal Opinion from Zhejiang Tianche Law Firm on the 2025 Annual Shareholders' Meeting of Hangzhou Guotai Environmental Technology Co., Ltd.

Announcement of Resolutions from the 2025 Annual Shareholders' Meeting

Announcement of Resolutions from the 17th Meeting of the 4th Board of Directors

Notice of the 2025 Annual Shareholders' Meeting

Announcement on the Progress of Share Repurchase

Hangzhou Guotai Environmental Protection Technology Co., Ltd. 2025 Annual Financial Settlement Report

2025 Annual Board Work Report

Hangzhou Guotai Environmental Protection Technology Co., Ltd. 2026 Annual Financial Budget Report

Hangzhou Guotai Environmental Protection Technology Co., Ltd. Shareholder Return Plan for the Next Three Years (2026-2028)

Announcement on the Reappointment of the Accounting Firm

Guoxin Securities 2025 Annual Continuous Supervision Tracking Report on Guotai Environmental Protection

Announcement on the Company's 2026 Annual Compensation Plan for Directors and Senior Management

2025 Annual Independent Director Work Report (Liu Xiaosong)

2025 Annual Independent Director Work Report (Chi Renyong)

2025 Annual Independent Director Work Report (Li Dongsheng)

Announcement on Holding the 2025 Annual Performance Briefing

Guoxin Securities Verification Opinion on Guotai Environmental Protection's 2025 Annual Internal Control Self-Evaluation Report

Guotai Environmental Protection 2025 Annual Internal Control Audit Report

2025 Annual Internal Control Self-Evaluation Report

Public Opinion Management System

Announcement on the Company's and Subsidiaries' Application for Comprehensive Credit Limits from Banks in 2026

Notice of the 2025 Annual Shareholders' Meeting of Hangzhou Guotai Environmental Protection Technology Co., Ltd.

Resolution Announcement of the 16th Meeting of the 4th Board of Directors

Announcement on the Company's Special Explanation for Not Distributing Profits in 2025

Q1 2026 Report

2025 Annual Special Report on the Storage, Management, and Use of Raised Funds

Guoxin Securities Special Verification Report on the Storage and Use of Guotai Environmental Protection's 2025 Annual Raised Funds

Guotai Environmental Protection 2025 Annual Verification Report and Explanation on the Storage, Management, and Use of Raised Funds

2025 Annual Evaluation Report on the Performance of the Accounting Firm and the Audit Committee's Supervision Responsibilities Report