Introduction to the main business of Zhongxin Wafer

Zhongxin Wafer's main business is the research and development, production and sales of semiconductor silicon wafers. The main products include 4-inch, 5-inch, 6-inch, 8-inch, 12-inch polished wafers and 12-inch epitaxial wafers. The company is also engaged in entrusted processing of semiconductor silicon wafers and sales of single crystal silicon rods. From January to June 2019 to 2022, Zhongxin Wafer's net profit attributable to shareholders after deducting non-recurring items was -171.025 million yuan, -450.0475 million yuan, -344.1507 million yuan, and -105.3504 million yuan, respectively, with a cumulative loss of more than 1 billion.