


Core Viewpoint - The company intends to increase the limit for using temporarily idle raised funds for cash management from RMB 200 million to RMB 250 million, ensuring that this does not affect the construction of fundraising investment projects and normal operations [4][10][11] Summary by Sections Fundraising Basic Information - The company raised a total of RMB 709,999,981.08 through the issuance of 16,888,677 shares at a price of RMB 42.04 per share, after deducting underwriting and other issuance costs [1] Previous Use of Idle Funds - As of June 30, 2025, the company had invested RMB 52,924.15 million in the lithium niobate high-speed modulator chip R&D and industrialization project, with remaining idle funds from the 2020 fundraising of RMB 21,349.36 million [3][5] Current Proposal for Cash Management - The company held meetings on March 28, 2025, and August 15, 2025, to approve the increase in cash management limits for temporarily idle funds, allowing for investment in bank structured deposits with a maximum term of 12 months [4][6][10] Investment Risk and Control Measures - The company will select high-safety, high-liquidity investment products with a capital preservation agreement, ensuring that the investment does not exceed 12 months [8][9] Impact on the Company - The use of idle funds for cash management is expected to enhance fund utilization efficiency and generate returns for the company and its shareholders without affecting the normal operation of fundraising projects [5][10][11] Approval Procedures - The increase in cash management limits has been approved by the board and does not require shareholder meeting approval, complying with relevant regulations [10][11]