Founded in 1983, Trio Engineering (“Trio”) is an international electronics manufacturing services provider specializing in customized industrial electronics products and solutions.

“Powering the eWorld” is Trio’s corporate vision. We provide advanced engineering and contract manufacturing services for a wide range of industries. With our experienced team of outstanding track record and reputation, we have been recognized by our customers as a reliable partner for addressing high-complexity and advanced PCB assemblies and turn-key system assembly solutions. We specialize in the manufacture of custom and standard power supplies, industrial battery chargers, inverters, filters and transformers/magnetics for industrial applications, and smart vending systems and self-service kiosks.

Backed by our manufacturing facilities in Europe and Asia, Trio has been recognised as an ideal partner for low to medium volume and high mix contract manufacturing as well as high volume production. Trio has an extensive export base in Europe, USA and Asia. Our relationship with our customers, suppliers, contractors and employees is based on trust leading to mutual long-term success.

Trio Engineering is the principal subsidiary of Trio Industrial Electronics Group Limited (“Trio Group”) which is listed on the Main Board of the Stock Exchange of Hong Kong.