STD DEV GROUP (01867) announced that on September 5, 2025, Mr. Liang Rongjin has notified the company of his intention to retire as an independent non-executive director at the upcoming annual general meeting and will not seek re-election. Additionally, Dr. Yan Bing has informed the company of his intention to retire as an independent non-executive director at the upcoming annual general meeting and will not seek re-election.

Following the conclusion of the annual general meeting, Mr. Liang Rongjin will cease to serve as chairman of the board's remuneration committee and as a member of the board's audit committee and nomination committee. Dr. Yan Bing will no longer serve as a member of the audit committee.

The board further announces that it proposes to appoint Mr. Zhao Changsheng and Mr. Xu Zhaohong as independent non-executive directors at the annual general meeting on September 5, 2025. Upon conclusion of the annual general meeting, if elected, Mr. Zhao will serve as chairman of the remuneration committee and as a member of the audit committee and nomination committee, while Mr. Xu will serve as a member of the audit committee.