On its first day of trading, Chaoyan stock made a stunning debut on the ChiNext board, surging more than 370%. The company specializes in the research, development, production, and sales of medical imaging equipment and industrial non-destructive testing equipment. Its product portfolio includes fully digital color Doppler ultrasound systems, B-mode ultrasound, X-ray equipment, industrial ultrasonic non-destructive testing products, and ultrasonic probes, among others.