With the domestic epidemic situation gradually improving, DTCC has strived to resume all marketing, sales, support and production work functions as soon as possible. In recent weeks we completed delivery and acceptance of SmartSolo IGU-16HR 3C integrated seismographs for some domestic and foreign repeat customers including CEA, CAS, USGS, IRIS and others. Armed with a robust manufacturing ethos that is not reliant on international supply chain, reinforced with a resourceful and gifted team across all departments, DTCC continues to provide top class tools for sensing experts in the global earthquake industry.