Ultrasonic Electronics (000823.SZ): The claim that "Ultrasonic Electronics' high-frequency boards have passed Nvidia certification" is untrue. Currently, the company does not supply any products to Nvidia.

Zhito Finance APP News: Ultrasonic Electronics (000823.SZ) has issued an announcement that the company's stock price deviation for three consecutive trading days on September 14, 15, and 16, 2026, cumulatively exceeded 20%, which constitutes an abnormal fluctuation in stock trading. The company has noticed that the market has recently shown high attention to concepts related to PCB (printed circuit boards) and computing power hardware, and there is market discussion regarding the company's involvement in concepts such as computing power and Nvidia supply. The company provides the following explanation regarding the relevant business situation: The claim that "Ultrasonic Electronics' high-frequency boards have passed Nvidia certification" is untrue, and the company currently has no products supplied to Nvidia; the company's PCBs supporting 800G and 1.6T optical modules are in the R&D and follow-up stage. The subsequent progress, customer certification, and mass production implementation of the above R&D projects are subject to uncertainty, and large-scale supply has not yet been achieved. As of now, the above products have not generated corresponding revenue.