浙江金海高科股份有限公司 关于使用闲置募集资金进行现金管理到期赎回 并继续进行现金管理的进展公告 本公司董事会及全体董事保证本公告内容不存在任何虚假记载、误导性陈述或者重大遗漏，并对其内容 的真实性、准确性和完整性承担法律责任。 重要内容提示： 证券代码：603311 证券简称：金海高科 公告编号：2026-005 投资种类：结构性存款 投资产品名称：单位结构性存款7202601565产品 投资金额：人民币6,000万元 已履行的审议程序：本事项经浙江金海高科股份有限公司（以下简称"公司"）第五届董事会第十六次会 议、第五届监事会第十次会议审议通过，监事会及保荐机构对此事项发表了同意的意见。 特别风险提示：公司本次使用部分闲置募集资金购买的低风险、安全性高、流动性好、保本型的产品， 均属于低风险投资产品，但金融市场受宏观经济、财政及货币政策的影响较大，不排除该项投资可能受 到市场波动的影响。 一、使用部分闲置募集资金进行现金管理到期赎回情况 公司使用部分闲置的募集资金人民币1,500万元于2025年11月25日通过招商银行绍兴诸暨支行（以下简 称"招商银行"）认购了"点金系列看涨两层区间92天结构性存款"，具 ...

Core Viewpoint - Shenzhen Qiangda Circuit Co., Ltd. announced the progress of cash management using idle raised funds, detailing the redemption of cash management products, account changes, and new investments [1] Group 1: Cash Management Progress - The company held its sixth meeting of the second board of directors and the sixth meeting of the second supervisory board on December 21, 2024, approving the use of no more than 325 million yuan of idle raised funds for cash management, with a validity period of 12 months and the option for rolling use [1] - One cash management product was redeemed, leading to the automatic cancellation of the related special settlement account. The product was a large-denomination certificate of deposit from China Merchants Bank, with a subscription amount of 100 million yuan, an annual yield of 1.10%, and a total redemption amount of 100 million yuan, yielding 91,700 yuan upon maturity [2] Group 2: New Cash Management Investments - The company used another 100 million yuan of idle raised funds for cash management, purchasing a structured deposit product from China Merchants Bank with an expected annual yield of 1.00%-1.75%, starting from August 27, 2025, and maturing on November 27, 2025. The investment does not constitute a related party transaction [3] Group 3: Historical Investment Situation - Since December 2024, the company has made multiple cash management investments involving various large-denomination certificates of deposit and structured deposits from China Merchants Bank and Bank of China. As of the announcement date, the unused balance of idle raised funds for cash management was 190 million yuan, remaining within the board's authorized limit [4] - The company stated that this cash management is conducted without affecting normal operations and project construction, aiming to enhance fund utilization efficiency and provide returns for the company and its shareholders [4]