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STL owns a large manufacturing facility in Yuan Zhou in the PRC. We have been an ISO9001 certified facility since 1994 and ISO14001 certified since 2002.
Yuan Zhou Factory
A larger team of design engineers are located directly at the factory under the
management of an experienced American engineering manager.
Located in Hong Kong, with manufacturing facilities in Mainland China, STL is able to provide cost-effective quality products and excellent service to our customers.

Already established in-house manufacturing technologies include: through hole, SMT, TAB, bonding, BGA, and Chip on Board. Some information about our capabilities:

• Manufacturing floor-space: over 500,000 sq. ft.
• Manufacturing work-force: ~1000
• SMT capacity: 3 million components per day, down to 0201
• Potting: Computer controlled, high-vacuum potting facilities
• X-ray inspection of incoming materials and monitoring of products
• X-ray inspection of BGA placement

Head Office
The head office of STL is located in Tsuen Wan, Hong Kong. Located here are our marketing, design engineering, purchasing, accounting and personnel departments.
STL has strong ties with research institutions and business organizations in Hong Kong, including.
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