Tiantong Shares: The company and related personnel have received a warning letter from the Zhejiang Securities Regulatory Bureau

Tiantong Corporation Announcement: The company and relevant personnel received a warning letter from the Zhejiang Securities Regulatory Bureau on April 3, 2026. The warning letter pointed out that from 2021 to 2024, Xuzhou Tongxin Optoelectronic Technology Co., Ltd., Xuzhou Meixing Optoelectronics Technology Co., Ltd., and Jiaxing Tianying Technology Development Co., Ltd. should have been recognized as related parties of Tiantong Corporation, but the company did not disclose this. From 2022 to 2024, the transaction amount between the company and Meixing Optoelectronics reached the board's review standard, but the company did not fulfill the approval procedures and disclosure obligations for related transactions. The above actions violate the provisions of the "Regulations on Information Disclosure by Listed Companies," and the Zhejiang Securities Regulatory Bureau has decided to take supervisory measures to order the company to correct its behavior and record it in the integrity archives of the securities and futures market.