/Announcement on Convening the 2026 Semi-annual Performance Briefing
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Announcement on Convening the 2026 Semi-annual Performance Briefing

Shanghai Stock Exchange
2026/08/28

Securities code: 603739 Securities abbreviation: Weilan Biotechnology Announcement number: 2026-046 Qingdao Weilan Biotechnology Co., Ltd.

Announcement on Convening the 2026 Semi-annual Results Briefing Meeting

The company's board of directors and all directors guarantee that there are no false records, misleading statements or major omissions in this announcement, and assume legal responsibility for the authenticity, accuracy and completeness of its contents.

Important content reminder:

 Meeting time: September 4, 2026 (Friday) 9:00-10:00

 Meeting location: Shanghai Stock Exchange Roadshow Center (Website: https://roadshow.sseinfo.com/)

Meeting method: Shanghai Securities Roadshow Center online interaction

 Investors can log in to the homepage of the Shanghai Securities Roadshow Center website before 16:00 on August 28, 2026 (Friday) to September 3 (Thursday) and click on the "Question Pre-Solicitation" column or ask questions through the company's email [email protected]. The company will answer questions of common concern to investors at the briefing.

Qingdao Weilan Biological Co., Ltd. (hereinafter referred to as the "Company") has released the company's 2026 semi-annual report on August 28, 2026. In order to facilitate investors to have a more comprehensive and in-depth understanding of the company's operating results and financial status in the 2026 semi-year, the company plans to hold the 2026 semi-annual performance briefing on September 4, 2026 (Friday) from 9:00-10:00 to communicate on issues of concern to investors.

1. Type of briefing session

This investor briefing will be held in an interactive online format. The company will interact and communicate with investors on the specific operating results and financial indicators for the first half of 2026, and answer questions of common concern to investors within the scope permitted by information disclosure.

2. Time, place and method of holding briefing meeting

(1) Meeting time: September 4, 2026 (Friday) 9:00-10:00

(2) Meeting location: Shanghai Stock Exchange Roadshow Center (Website: https://roadshow.sseinfo.com/)

(3) Meeting method: Shanghai Securities Roadshow Center online interaction

3. Participants

Chairman and President: Chen Gang

Director and CFO: Qiao Piyuan

Secretary of the Board of Directors: Jiang Yong

Independent directors: Wang Jing, Zou Ming

4. How to participate as an investor

(1) Investors can log in to the SSE Roadshow Center (http://roadshow.sseinfo.com/) via the Internet from 9:00-10:00 on September 4, 2026 (Friday) to participate in this performance briefing online. The company will answer investors' questions in a timely manner.

(2) Investors can log in to the homepage of the Shanghai Stock Exchange Roadshow Center website from August 28 (Friday) to September 3 (Thursday) before 16:00, click on the "Ask a Question Pre-Solicitation" column (https://roadshow.sseinfo.com/preCallQa), and select this event according to the event time or via the company email [email protected] Ask the company questions and the company will answer questions of common concern to investors at the briefing.

5. Contact information

Contact person: Jiang Yong

Tel: 0532-88978071

Email: [email protected]

6. Others

After this investor briefing is held, investors can check the status and main content of this investor briefing through the SSE Roadshow Center (http://roadshow.sseinfo.com/).

Announcement is hereby made.

Board of Directors of Qingdao Weilan Biological Co., Ltd.

August 28, 2026