We are an EMS provider in the manufacture of OEM PCB assemblies, switch mode power supplies, magnetic components and custom-tooled plastic and metal assemblies.

Our philosophy ¡°Powered by Partnership¡± focuses on close co-operation with our customers and suppliers, i.e. our partners. We have cultivated a flexible business strategy in supporting our customers based on the following key elements.

• Experienced engineering teams that can always assist in the design and cost reduction programs.
• We are familiar with all relevant international safety standards and approvals such as UL, VDE, CSA, etc.
• Our Production Plant is fully RoHS compliant and ISO certified.
• Being 100% OEM, we have no products of our own in the market. Customers can therefore be assured that we always keep strict confidentiality on their technological and other proprietary information.
• We focus on quality, as well as on time delivery requirements of our customers. We also highly value good communication, flexibility, and customer service.

With more than 30 years of experience in the industry, we are well positioned to embrace new technologies and challenges.

• Set up in Hong Kong in 1983 as technical parts trading and technical consultancy specializing in product safety and manufacturing process approvals.
• Manufacturing facility set up in China in 1990 as OEM manufacturing of PCBA and Magnetic wound components.
• Continuous expansion of manufacturing facilities in 2000, 2009 and 2014.
• Fully RoHS compliant in 2008.
• Consistent development of marketing activities in Europe, USA and Asia including Japan.

Trio welcomes the opportunity in developing new EMS partners.