On December 22, the company and Guilin Electrical Science Research Institute Co., LTD. (hereinafter referred to as "Guilin Institute of Electrical Science") signed a contract to purchase and install PI film production line of Phase I of Guofeng New Station polyimide (PI) Industrial Park, which is the second cooperation after the first cooperation between the two parties in October 2020. Municipal SASAC Party Committee member and deputy director Li Xiaoxiang, company Party secretary and chairman Huang Qiongyi, Guilin Institute of Electrical Technology Party Secretary and Chairman Dong Sha attended the ceremony and witnessed the signing. Li Fengkui, member of the Party Committee and Vice general manager of the company, and Liu Liang, vice general manager of Guilin Institute of Electrical Technology, signed a formal agreement on behalf of both parties.