1990   Established Trio Technology Co., Ltd. in Taipei, Taiwan.

1997   Set up HK logistic center.

1998   Established Dongguan (China) plant for manufacturing operation.

2002   Suzhou (China) plant began mass production.

2004   Dongguan (China) plant being ISO-9001 certified. Taipei office relocated for business expansion.

2005   Suzhou (China) plant being ISO-9001 and ISO-14001 certified.

2006   RoHS compliant products available for all series.

2007   Dongguan (China) plant being ISO-14001, QC080000, & OHSAS18001 certified.

2008   New products (Molding Type Power Inductors) to market. Halogen-free Compliant products available for all series.

2009   New logo announced for company image.

2010   New products (Magnetic epoxy shielded power inductors) to market.

2011   Suzhou (China) plant being OHSAS18001:2017 certified.

2013   New products (Mini Molding alloy power inductors) to market.

          Established auto production line for LD series.

2014   Established auto production line for EA series

          Established auto production line for mini core(EP series).

2015   Established auto production line for LF series

2016   Dongguan (China) plant being IATF16949 certified.

2017   Suzhou (China) plant being IATF16949 certified.

          New products (EMI series) to market.

          MES lead to Suzhou factory.