*ST Sihuan Co., Ltd.

Notice on the Election of the Board of Directors of Jiangsu Sihuan Bioengineering Co., Ltd.

Legal Opinion on Inquiry Letter Regarding Jiangsu Sihuan Bio Co., Ltd. 2025 Annual Report

Response to Inquiry Letter on Jiangsu Sihuan Bio Co., Ltd.'s 2025 Annual Report

Announcement on Response to Shenzhen Stock Exchange's Inquiry Letter Regarding 2025 Annual Report

Announcement on the Withdrawal of Delisting Risk Warning and Trading Suspension/Resumption of Jiangsu Sihuan Bio Co., Ltd.

Announcement on Progress of Jiangsu Sihuan Bio's Application to Withdraw Delisting Risk Warning

Compensation Management System for Directors and Senior Management of Jiangsu Sihuan Bioengineering Co., Ltd. (May 2026)

Legal Opinion for Sihuan Bio's 2025 Annual Shareholders Meeting

Announcement of Resolutions from Jiangsu Sihuan Bio Co., Ltd. 2025 Annual Shareholders' Meeting

Open Source Securities Co., Ltd. on Jiangsu Sihuan Bio Co., Ltd. Detailed Equity Change Report for 2025 and Q1 2026 Supervision Opinions and Summary

Announcement on Progress of Investor Claims by Jiangsu Sihuan Bioengineering Co., Ltd.

Q1 2026 Report

Announcement on Uncovered Losses Reaching One-Third of Total Paid-in Capital by Jiangsu Sihuan Bioengineering Co., Ltd.

Announcement on Proposed Reappointment of Accounting Firm by Jiangsu Sihuan Bioengineering Co., Ltd.

2025 Financial Settlement Report of Jiangsu Sihuan Bioengineering Co., Ltd.

2025 Annual Board Work Report of Jiangsu Sihuan Bioengineering Co., Ltd.

2025 Annual Report of Independent Director Wang Li, Jiangsu Sihuan Bioengineering Co., Ltd.

2025 Annual Report of Independent Director Liu Wei at Jiangsu Sihuan Bioengineering Co., Ltd.

2025 Annual Report of Independent Director Wu Liangwei at Jiangsu Sihuan Bioengineering Co., Ltd.

Internal Control Audit Report of Jiangsu Sihuan Bioengineering Co., Ltd.

2025 Internal Control Evaluation Report of Jiangsu Sihuan Bioengineering Co., Ltd.

Compensation Management System for Directors and Senior Management of Jiangsu Sihuan Bioengineering Co., Ltd. (April 2026)

Announcement on Change of Accounting Policies by Jiangsu Sihuan Bioengineering Co., Ltd.

Announcement on Asset Impairment Provision for Fiscal Year 2025 by Jiangsu Sihuan Bioengineering Co., Ltd.

Notice of 2025 Annual Shareholders Meeting of Jiangsu Sihuan Bioengineering Co., Ltd.

Announcement of Resolutions from the 18th Meeting of the 10th Board of Directors of Jiangsu Sihuan Bioengineering Co., Ltd.

Special Statement on Proposed Non-Distribution of Profits for 2025 by Jiangsu Sihuan Bioengineering Co., Ltd.

Special Audit Report on Revenue Deduction Matters of Jiangsu Sihuan Bioengineering Co., Ltd.

Evaluation Report on the Performance of the Accounting Firm for 2025 by Jiangsu Sihuan Bioengineering Co., Ltd.

Report on the Audit Committee's Oversight of the Accounting Firm for 2025

Special Audit Report on Non-Operating Fund Occupation and Related Fund Transactions of Jiangsu Sihuan Bio Co., Ltd.