Core Viewpoint - Chongda Technology (002815.SZ) has demonstrated its capability in producing HDI samples of 5 layers and above, as well as PTFE substrate PCB technology, and can mass-produce 40-layer high multilayer boards [1] Group 1 - The company is committed to keeping pace with cutting-edge technology research and development to meet the demands of the high-end market [1] - Specific customers and projects are not disclosed due to commercial sensitivity [1]