HIT: Provides joint liability guarantee for subsidiary's credit line of 50 million

In 2025, HIT is expected to provide a guarantee limit of no more than 1.7 billion yuan for its subsidiaries. Recently, its wholly-owned subsidiary Anhui Hongcheng Optoelectronics applied for credit from the Shenzhen branch of China Merchants Bank. HIT signed an "Irrevocable Maximum Guarantee Letter" with the bank, providing a joint liability guarantee of 50 million yuan for Hongcheng Optoelectronics. This amount is within the limit approved by the shareholders' meeting and does not require further review by the board of directors and shareholders' meeting. Hongcheng Optoelectronics has a good operating, financial, and credit status, with total assets of 584 million yuan as of June 30, 2025. As of the announcement date, the company's total external guarantee balance is 430 million yuan, accounting for 12.23% of the audited net assets for the 2024 fiscal year, with no overdue or other adverse guarantee situations