On March 24, 2021, Pei Yugang, the chairman of Huinong Group, and other leaders visited Beijing Kcalin New Energy Technology Co., Ltd. for inspection and guidance and joint application technology exchange. The seminar discussed the application of the combined technology of heat pump and photovoltaic power generation, and reached an agreement on the in-depth cooperation of projects in the clean energy heating industry. The leaders of Huinong Group, Kcalin Group and the general manager of the thermal operation department attended the seminar.