Tianshan Electronics: Announcement on the Establishment of Corporate Governance System

Securities code: 301379 Securities abbreviation: Tianshan Electronics Announcement number: 2026-067

Guangxi Tianshan Electronics Co., Ltd.

Announcement on the Establishment of Corporate Governance System

The company and all members of the board of directors guarantee that the information disclosed is true, accurate and complete.

False records, misleading statements or major omissions.

Guangxi Tianshan Electronics Co., Ltd. (hereinafter referred to as the "Company") held the third meeting of the fourth board of directors on August 28, 2026, and reviewed and approved the "Proposal on Developing a Corporate Governance System."

In accordance with the relevant provisions of normative documents such as the "Shenzhen Stock Exchange Self-Regulatory Guidelines for Listed Companies No. 2 - Standardized Operations of GEM Listed Companies" and combined with the company's actual situation, in order to standardize the company's operations and further improve the level of corporate governance, the company has newly formulated the "Interactive Easy Platform Information Release and Reply Internal Review System".

The above-mentioned corporate governance system will come into effect from the date of review and approval by the company's board of directors. For the full text of the system formulated this time, please refer to the relevant system disclosed by the company on the cninfo.com (www.cninfo.com.cn) on the same day.

Announcement is hereby made.

Board of Directors of Guangxi Tianshan Electronics Co., Ltd.

August 28, 2026