Group 1 - The company is responding to price fluctuations in the photovoltaic-grade quartz sand market and trends in domestic high-purity quartz sand applications by enhancing its photovoltaic testing business [2] - The company has established a comprehensive testing and evaluation platform to support the development of the photovoltaic and other new energy industries [2] - The company possesses capabilities in building photovoltaic inverter testing platforms and integrating systems for power battery testing laboratories, indicating a strong service capacity in the sector [2] Group 2 - The company is committed to continuously monitoring developments in the photovoltaic sector and systematically advancing its photovoltaic testing business [2]