Core Viewpoint - The company Guoci Materials (300285) announced on August 19 that its subsidiary Guoci Saichuang has developed technology for ceramic substrates used in optical modules, which are primarily utilized for heat dissipation [1] Group 1: Technology and Product Development - Guoci Saichuang has the technical reserves for ceramic substrates used in optical modules, which include bases and semiconductor thermoelectric coolers (TEC) [1] - The semiconductor thermoelectric cooler (TEC) has already achieved mass production and small-scale sales [1] - The company plans to increase research and investment after the completion of the second-phase factory construction to further explore the corresponding market [1]