Group 1 - The State Intellectual Property Office of China shows that Heguang Tongcheng Photovoltaic Technology (Yibin) Co., Ltd. and Sichuan Heguang Tongcheng Photovoltaic Technology Co., Ltd. have applied for a patent titled "A Device and Method for Low-Temperature Rapid Pretreatment to Improve Solar Cell Efficiency," with publication number CN120239354A and application date of March 2025 [1] - The patent describes a device that includes an outer shell, a conveyor belt, and a UV light-emitting device, which aims to enhance the efficiency of TOPCon solar cells through low-temperature rapid UV irradiation [1] - The method involves placing TOPCon solar cells on a conveyor belt, irradiating the front of the cells with UV light as they move through the device, and subsequently performing laser-assisted sintering, which reduces equipment and electricity costs while improving cell passivation performance and UV degradation resistance [1] Group 2 - Heguang Tongcheng Photovoltaic Technology (Yibin) Co., Ltd. was established in 2023, located in Yibin City, with a registered capital of 1,176.47 million RMB, and has participated in 68 bidding projects and holds 40 patents [2] - Sichuan Heguang Tongcheng Photovoltaic Technology Co., Ltd. was also founded in 2023 in Yibin City, with a registered capital of 236.69 million RMB, having invested in 3 companies and participated in 5 bidding projects, holding 9 patents [2]