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SEI Thai Electric Conductor Co., Ltd.
(STEC)

Establishment	: 27 April, 2012
Capital	: 2,010,000,000 THB
Shareholder	: Sumitomo Electric Industries, Ltd.
	: S.E.I. Thai Holding Co., Ltd.
	: Sumitomo Electric (Thailand) Ltd.
History

Sep. 2014	: Started operation of Aluminum electric wire for automotive and Aluminum rounded bar.
Jan. 2015	: Started operation of Copper drawn wire.
May. 2015	: Started operation of Copper wire rod.
Sep. 2016	: Started operation of Aluminum wire rod and wire.

STEC Principles

To be a leading manufacturer of copper wire rod and copper wire, aluminum wire rod, wire and bar, and aluminum electric wire for automotive wiring harness.
To enhance customer’s satisfaction of quality, delivery and technical support.
To comply the laws and regulations of Thailand and each customer’s countries.
To contribute societies through its business activities, including the provision of products, technologies and services that benefit society.