Shantou Dongfeng Printing Co.Ltd(601515) it was announced that Guangdong Xinrui New Material Technology Co., Ltd., a wholly-owned subsidiary of the company, and Shenzhen Bosheng New Material Co., Ltd. jointly signed the strategic cooperation agreement. The two sides intend to establish a multi-level and comprehensive cooperation mechanism in the R & D, production and process of various new materials such as various battery materials, diaphragm materials, special polymer membranes, heat conduction materials and heat insulation materials Comprehensive long-term strategic partnership and win-win relationship.