On June 20, the Management Committee of Lingang Economic Development Zone, Jiangyin City, Jiangsu Province, issued an announcement on the proposed approval of the 2G W high-efficiency heterojunction solar cell technology renovation project .
The announcement shows that the technical renovation plans to use the existing 5 # workshop 320 m2 workshop, purchase 7 sets of tinning equipment and adjust the layout, renovate the existing battery production line and add new tinning technology. By plating tin on the exposed copper surface of the electrode, the reaction between copper and air is avoided, so as to improve the stability of the copper-plated cell. After the completion of the
technical transformation project, the capacity of the battery production line will remain unchanged , and the annual output of high-efficiency heterojunction solar cells will remain 2G W . After the completion of this project, the annual production capacity of the whole plant will be 2G W of high-efficiency heterojunction solar cells, and 72,000 pieces of high-efficiency solar cells will be developed annually. Located at 333 Yangtze Avenue, Huangtu Town, Jiangyin City, Jiangsu Province,
the project is constructed by China Building Materials (Jiangyin) Photoelectric Material Technology Co., Ltd. with a total investment of 3 million yuan . On June 6, 2025, the Administrative Committee of Jiangyin Lingang Economic Development Zone announced the acceptance of its EIA.
It is reported that the project of China Building Material High-efficiency Heterojunction Battery, which was constructed by China Building Material (Jiangyin) Photoelectric Material Technology Co., Ltd., started in January 2023 with a total investment of 5 billion yuan , of which 1.8 billion yuan will be invested in the first phase, and new high-efficiency battery plants, R & D buildings and other buildings will be built. The total building area is about 80000 square meters. According to
the data, China Building Materials (Jiangyin) Photoelectric Materials Technology Co., Ltd. was established in March 2022 with a registered capital of 500 million yuan. Its main business is the manufacture and sale of photovoltaic equipment and components, solar power generation technology services, etc.
The company is a secondary subsidiary of China Building Material Group, which indirectly holds 100% of the equity of China Building Material (Jiangyin) Photoelectric Material Technology Co., Ltd. through China Building Material Junxin Technology Co., Ltd .
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