2.1 Competitive niche　　2.2 Innovation and R&D　　2.3 Customer service　　2.4 Suppliers For internal patent proposals made in 2019, after a review by the Intellectual Property Review Committee, of all innovative proposals with potential for industrial use, 162 patent applications were made to increase the patent quality of PSMC and external competitiveness; further, the Company makes use of patent application systems of different countries to strategize its patent planning to provide the best protection for its new technologies.