中国银河证券股份有限公司 关于 杭州华光焊接新材料股份有限公司 以简易程序向特定对象发行股票 之 上市保荐书 3-2-1 保荐机构（主承销商） 二〇二六年一月 杭州华光焊接新材料股份有限公司 上市保荐书 声 明 中国银河证券股份有限公司（以下简称"银河证券"、"保荐机构"、"本 保荐机构"、"保荐人"）接受杭州华光焊接新材料股份有限公司（以下简称"华 光新材"、"发行人"、"公司"）的委托，担任华光新材本次以简易程序向特 定对象发行股票（以下简称"本次发行"）的保荐机构，出具本上市保荐书。 银河证券及其保荐代表人根据《中华人民共和国公司法》（以下简称"《公 司法》"）、《中华人民共和国证券法》（以下简称"《证券法》"）、《证券发行 上市保荐业务管理办法》（以下简称"《保荐管理办法》"）、《上市公司证券发 行注册管理办法》（以下简称"《注册管理办法》"）、《〈上市公司证券发行注册 管理办法〉第九条、第十条、第十一条、第十三条、第四十条、第五十七条、第 六十条有关规定的适用意见——证券期货法律适用意见第 18 号》（以下简称 "《证券期货法律适用意见第 18 号》"）、《上海证券交易所上市公司证券发行 上市审核规 ...

Group 1 - The company, Huaguang New Materials (688379.SH), stated on the investor interaction platform that it has not participated in the bidding for the construction of computing power centers for domestic internet enterprises [1]

Core Viewpoint - Huaguang New Materials (688379.SH) has stated on the investor interaction platform that the company did not participate in the bidding for the construction of computing power centers for domestic internet enterprises [1] Company Summary - The company clarified its position regarding the construction of computing power centers, indicating a lack of involvement in this sector [1]

（文章来源：证券日报） 证券日报网讯 1月20日，华光新材在互动平台回答投资者提问时表示，公司有向欧盟成员国出口的业 务，以直销为主，收入占比较小，请投资者注意风险。 ...

Group 1 - The company, Huaguang New Materials, will release its performance forecast by the end of January 2026, in accordance with the relevant regulations of the Shanghai Stock Exchange's Sci-Tech Innovation Board [1]

Core Viewpoint - The company showcased innovative products and material solutions at the 2026 CES exhibition, targeting sectors such as AI liquid cooling, heating power modules, smart healthcare, smart wearables, smart home, electronic industry, and new energy vehicles, achieving positive results in expanding its international market and technological vision [1] Group 1 - The company participated in the 2026 CES exhibition with a focus on AI liquid cooling and other innovative solutions [1] - The exhibition helped the company to further open up international markets and enhance its technological perspective [1] - Future business progress in the AI liquid cooling sector will be detailed in upcoming periodic reports [1]

Group 1 - The company Huaguang New Materials has submitted an application for liquid cooling server concepts to Dongfang Caifu (300059) and is currently awaiting approval [1]

Group 1 - The company, Huaguang New Materials, announced that it has won the 2025 China Cold and Warm Intelligent Manufacturing Award for the Annual Excellent Brand in the materials category [1]

Core Viewpoint - Huaguang New Materials is actively involved in the semiconductor industry with its conductive silver paste and tin-based solder materials, currently in the validation phase for its pre-formed high-activity tin solder sheets and conductive adhesive products, which have not yet achieved mass supply [1] Group 1 - The company's tin-based solder materials have been applied in the PCBA process on a large scale [1] - Investors are advised to pay attention to the company's future periodic reports for specific revenue details [1]

Group 1 - The company, Huaguang New Materials, stated that it currently does not have products directly applied in CPO (Chip-on-Board) technology [1] - The company has invested in Suzhou Lianjie Technology, which develops and produces ceramic substrates used in optical modules and semiconductor lasers, with an investment ratio of approximately 5% [1]