On July 30, Professor Satoru Kuriyagawa, CTO of Japan's Solar Frontier, together with Yuichi Kuroda, Director, Tetsuyuki Shirai, and Chai Lingyun, visited CTC for research and exchange. Ma Zhenzhu, Deputy Party Committee Secretary of China Building Materials Academy and Party Committee Secretary/General Manager of CTC; Jiang Yang, Deputy General Manager of Triumph Science & Technology Group; Chen Lu, Deputy General Manager of CTC; Xiao Pengjun, Deputy President of the Photovoltaic Inspection and Certification Institute; and relevant personnel participated in the research.

Kuriyagawa stated that Solar Frontier is currently the world's largest producer of CIS thin-film photovoltaic modules. Its parent company is Idemitsu Showa Shell Co., Ltd. The company produces approximately 1 GW of CIS thin-film photovoltaic modules annually, with cumulative shipments exceeding 5 GW in recent years, mainly used in ground-mounted photovoltaic systems, residential rooftop and commercial rooftop photovoltaic systems. He expressed the hope to cooperate with CTC in photovoltaic building materials testing, certification, and standards, so as to promote the application of the company's products in the Chinese market. Ma Zhenzhu welcomed Kuriyagawa and his delegation. Ma Zhenzhu stated that it is necessary to leverage CTC's inspection and certification advantages in the building materials field and its years of professional accumulation in the photovoltaic field to jointly promote with Solar Frontier the application of CIS thin-film photovoltaic modules in Chinese buildings and continuously expand the market share of “power-generating” building materials. Xiao Pengjun introduced the current status of domestic and international standards for photovoltaic building materials and industry pain points, with emphasis on the domestic first CSTM/FC03/TC22 Solar Photovoltaic System Application Technology Committee dedicated to the photovoltaic building materials (BIPV) industry and the status of photovoltaic green building materials certification.

During the research visit, Kuriyagawa and his delegation also visited the testing laboratory of the National Center for Quality Supervision and Inspection of Solar Photovoltaic (PV) Products of CTC.