JinkoSolar Holding Co Ltd (JinkoSolar) is a vertically integrated solar power product manufacturer that manufactures and distributes its solar products and sells its solutions and services to diversified international utilities, commercial, and residential customer bases.

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JinkoSolar focuses its research and development efforts on improving manufacturing efficiency, enhancing product quality, and advancing next-generation photovoltaic (PV) technology. The company has achieved multiple technological breakthroughs, including the development of high-efficiency N-type TOPCon solar cells and modules. JinkoSolar has established cooperative agreements with academic institutions and industry partners to further its R&D capabilities. The company has also been recognized with various industry awards for its R&D achievements. JinkoSolar's R&D units include research centers located in Haining, Zhejiang Province; Shangrao, Jiangxi Province; and Xining, Qinghai Province in China, as well as in Vietnam. These units are responsible for managing the company's R&D activities, focusing on improving manufacturing processes, resolving technical problems, and developing new materials and technologies. The company also collaborates with universities and research institutions to enhance its R&D capabilities. As of December 31, 2025, the company held 3,559 patents and had 2,033 pending patent applications. The company is working on high-efficiency solar cells and modules, including perovskite-silicon tandem N-type TOPCon cells. JinkoSolar has partnerships with Nanchang University, Zhejiang University, Australian National University, Sun Yat-Sen University, National University of Singapore, TÜV Rheinland, and Shanghai Institute of Space Power Sources. In FY2025, the company incurred an expense of CNY896.8 million on its R&D activities, and stood at 1.4% of the company’s total revenue.