Ultrasonic Electronics: The company's controlling subsidiary, Shantou Ultrasonic Printed Circuit Board Co., Ltd., plans to invest in a high-performance HDI printed circuit board capacity expansion and upgrade technology transformation project, with a

2025-12-22

Ultrasonic Electronics: The company's controlling subsidiary, Shantou Ultrasonic Printed Circuit Board Co., Ltd., plans to invest in a high-performance HDI printed circuit board capacity expansion and upgrade technology transformation project, with a total investment of RMB 1.008 billion.