Wai Keung Yu

Part of Shenzhen Kaifa Technology Co., Ltd., Kaifa Technology (Hong Kong) Co., Ltd. is a holding Chinese company with interests in software development. The company is based in Hong Kong, Hong Kong.

Part of Atom Xquare Corp. Ltd., Perception Digital Ltd. is a Chinese company that provides electronic research and development services. The company is based in Hong Kong, Hong Kong.

Surface Mount Technology (Holdings) Ltd. is an investment holding company, which manufactures printed circuit boards and other electronic components. It offers manufacturability validation, sourcing, procurement, test development, after sales service, fulfillment, box build and PCB assembly solutions. The company was founded by Chan Kei Biu in 1986 and is headquartered in Hong Kong.

Surface Mount Technology Ltd. is a Chinese company that manufactures and distributes electronic parts and communications equipment. The private company is based in Hong Kong, Hong Kong.

Part of VTech Holdings Ltd., VTech Communications Ltd. is a contract manufacturing company based in Hong Kong, Hong Kong. The Chinese company provides electronic manufacturing services for EMS in various markets such as telecommunications, professional audio, switching mode power supply, and medical equipment. The company's services include top-quality digital signage, LED, and industrial control panel manufacturing, among others.