Derun Electronics announced that the company and relevant parties received the “Advance Notice of Administrative Penalty” issued by the Shenzhen Securities Regulatory Bureau. According to the “Stock Listing Rules”, there are false records in the “2020 Annual Report”, “2021 Annual Report” and “2022 Semi-Annual Report” disclosed by the company, so other risk warnings will be applied to the company's shares. The stock abbreviation was changed from “Derun Electronics” to “ST Derun”. The stock code remained unchanged and remained “002055,” and the stock trading day limit was changed to 5%. Trading of the company's shares will be suspended for 1 day from the opening of the market on January 5, 2026, and trading will resume from the opening of the market on January 6, 2026.

Derun Electronics announced that the company and relevant parties received the “Advance Notice of Administrative Penalty” issued by the Shenzhen Securities Regulatory Bureau. According to the “Stock Listing Rules”, there are false records in the “2020 Annual Report”, “2021 Annual Report” and “2022 Semi-Annual Report” disclosed by the company, so other risk warnings will be applied to the company's shares. The stock abbreviation was changed from “Derun Electronics” to “ST Derun”. The stock code remained unchanged and remained “002055,” and the stock trading day limit was changed to 5%. Trading of the company's shares will be suspended for 1 day from the opening of the market on January 5, 2026, and trading will resume from the opening of the market on January 6, 2026.