Core Viewpoint - The company Sunshine Lighting (600261.SH) is actively developing its hydrogen energy business by establishing a subsidiary focused on producing anion exchange membrane (AEM) electrolyzers, currently sourcing AEM membranes from external suppliers [1]. Group 1: Company Developments - Sunshine Lighting has set up a subsidiary, Zhejiang Sunshine Green Hydrogen Technology Co., Ltd., to focus on the hydrogen energy sector and aims to develop mass-producible AEM electrolyzer equipment [1]. - The company has invested in Ningbo Zhongke Hydrogen Easy Membrane Technology Co., Ltd., a leading domestic supplier of core materials for hydrogen electrolyzers, which specializes in the research and production of membranes and AEM components [1]. Group 2: Product and Supply Chain - Currently, the AEM membranes required for the electrolyzers are primarily sourced from external suppliers [1]. - Ningbo Zhongke Hydrogen Easy provides material support for the AEM electrolyzer business, leveraging their expertise in AEM products that exhibit excellent conductivity and alkali stability, which have already achieved large-scale supply [1]. - The company commits to timely announcements regarding any significant changes in core material supply or production capacity in accordance with information disclosure regulations [1].