联手通威股份，水务龙头布局钙钛矿浆料

Core Viewpoint - The article discusses the strategic collaboration between Haitian Holdings and Tongwei Solar in the photovoltaic materials sector, focusing on the development and application of new materials such as HJT, TOPCon, and perovskite, while emphasizing the importance of innovation and competitive product offerings in the renewable energy landscape [4][6]. Group 1: Company Overview - Haitian Holdings, established in 2008, is a core operational platform for Haitian Group in the environmental protection and new materials sector, listed on the Shanghai Stock Exchange in 2021 [5]. - Tongwei Solar, a wholly-owned subsidiary of Tongwei Co., Ltd., was founded in 2009 with a registered capital of 20.579 billion yuan, and is a leading global producer of crystalline silicon solar cells, boasting an annual production capacity exceeding 150 GW [4]. Group 2: Strategic Collaboration - The strategic cooperation framework agreement signed on March 23, 2026, between Haitian Holdings and Tongwei Solar will last until December 31, 2030, focusing on deep collaboration in photovoltaic cell paste development [4]. - Under the agreement, Tongwei Solar will prioritize the use of Haitian Holdings' materials and products, while Haitian Holdings is tasked with enhancing product reliability, stability, and conversion efficiency to provide competitive offerings [4]. Group 3: Industry Context - The collaboration aligns with the national "dual carbon" strategy, indicating a shift towards green and low-carbon development in the renewable energy sector [6]. - Haitian Holdings aims to expand its presence in the global photovoltaic materials market, leveraging its acquisition of Heliotech to enhance its technological innovation capabilities [5].