Trio Engineering Co., Ltd.

Trio Engineering Co., Ltd.

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TRIO is a green EMS providers specializing in OEM PCB assemblies, switch mode power supplies, smart battery chargers, magnetic components, and custom-tooled plastic and metallic assemblies over 30 years. We certified by TS16949, ISO13485, ISO9001, ISO14001, OHSAS18001, IPC, CCC, UL and comply with RoHS and REACH.


  • Switch Mode Power Supply

    Custom design PCB assembly is specially designed and made for switch-mode power supply units.

  • Compression Product

    Special made for Medical company, represent the standard for the prevention of Deep Vein Thrombosis.

  • Control Board

    #Custom made #durable contruction #guarantee smooth operation #BGA device

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  • Contact Information

    Trio Engineering Co., Ltd.
    5J, Phase 2, Kaiser Estate, 51 Man Yue Street, Hung Hom, Kowloon Hong Kong SAR
    Tel:  +852 2765 8787
    Fax:  +852 2764 9142
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