About us

E.S. International (1991) Co., Ltd.

With more than 30 years of experience, E.S International (1991) has gained industry recognition for its expertise in design and manufacturing of Medium and Low voltage switchgear.

We provide solutions for clients from retail, hospitality, airports, data centers, governmental projects, power/chiller plants, etc…

All cubicles are manufactured in house using materials of highest standards and specialized technologies. We do not compromise quality, as all process are controlled meticulously by the ISO 9001:2008 standard. Every switchboard is assembled by skilled workers and supervised by senior engineers to assure our clients that all aspects of the IEC and VDE standards are met.

E.S. International (1991) Co., Ltd. Place the utmost importance in our service to the customer.

ESI Trading Co., Ltd.

Established in 1995, ESI Trading Co., Ltd. is one of Siemens Thailand’s official distributor in LV components and holds a record of highest sales volume for 3 consecutive years. ESI Trading Co., Ltd. also imports high quality electrical components from renowned Europe brands and is currently the sole distributor for Janitza, Saci, Schmidt, DF, and Kunz. This allows ESI Trading Co., Ltd. to offer a comprehensive array of electrical products for switchgear manufacturers.

With E.S. International (1991) Co., Ltd., expertise in design and manufacturing and ESI Trading Co., Ltd wide range of components, we believe that ESI Group is able to provide the best advice, selection, and alternatives to our clients.

Company Overview

High Quality Materials

  • We ensure that every component of the switchgear are of the highest grade.
  • Electrogalvanized steel sheets are used for the production of cubicle enclosures.
  • Frame of all cubicles are of modular knockdown system. Sheared, bended and assembled with high precision.
  • Imported grade 98% high purity copper from Oriental Copper ensures high conductivity.