On the afternoon of June 11, 2019, Wan Gang, vice chairman of the Chinese People's Political Consultative Conference (CPPCC) and chairman of the China Zhi Gong Party, and the delegation of the 15th Central Standing Committee of the China Zhi Gong Party investigated DR Laser (hereinafter referred to as "DR Laser", stock code: 300776.SZ) accompanied by Zhang Baiqing, vice chairman of Hubei CPPCC, member of the Central Standing Committee of China Zhi Gong Party and chairman of Hubei Provincial Party Committee, Cao Yujiang, member of the Standing Committee of the Wuhan Municipal Party Committee and minister of the United Front Work Department, and Song Zhiping, member of the Party Working Committee and deputy director of the Management Committee of East Lake High-tech Development Zone. Dr. Li Zhigang, Chairman of DR Laser, accompanied them to visit the company's R&D center, commissioning workshop, and assembly workshop, and demonstrated the operation of the company's efficient PERC equipment to Chairman Wan and his delegation.

Dr. Li introduced the development of the company to Chairman Wan and his delegation, focusing on the company's new laser technology and R&D direction for high-efficiency solar cells. During the investigation, Chairman Wan paid great attention to the company's technical reserves and direction, inquired in detail about the technical process details for many times, and affirmed DR Laser's spirit of focusing on independent R&D in the photovoltaic industry and daring to pursue innovation in technology.