• Founded in 1993, JST is one of the world's largest producers of cast resin transformers and related electrical equipment.

  • We manufacture medium voltage transformers (10-25 kV) used in large infrastructure projects like factories and real estate developments, and municipal projects such as airports and subway systems.

  • We received ISO 9001 and 14001 certification in 1997 and 2000, respectively.

  • We are OSHA 18000 compliant.

  • We are one of two manufacturers of UL certified cast resin transformers in the world. We achieved UL certification in January 2007.

  • In 2005, we were named “Best New Supplier” and in 2007 we received the “Excellence in Quality Award” from one of the world’s largest electrical energy OEMs.

  • Our staff includes over 50 degreed design engineers.

  • We have a stellar reputation. We deliver the highest quality products with the shortest lead times - and operate with an extremely high degree of integrity. Read more >

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