Tonghui Electronics released records of investor relations activities. In recent years, the company has introduced the SMU source table series, and the semiconductor device PIV pulse characteristic testing series of instruments have been applied in the power semiconductor field, showing continuous sales growth. In addition, other instruments of the company, such as the high-frequency impedance analysis series, are also widely used by jcet group co., ltd., tongfu microelectronics, shanghai Jiemin and other semiconductor companies. They are used for integrated circuits including the measurement of related automotive-grade chip inter-electrode distribution parameters.