1973

The factory and office estabilshed at current address.

1992

Reconstructed our factory for installing a new enamell system purchased from SMIT DRAAD Co.(Holland).

2006

Developed combination of Paper Insulated wire made by 2 or more rectangular conductors.

2013

Established the third oversea company, PT. TongCheng Magnet Wire in Jababeka, Indonesia. Specialize in manufacturing Enamel Wire.

1984

Qualified by Bureau of Standards, Metrology and Inspection.Approved by CNS.

1995

Approved to be an official supplier for ABB Group (Singapore Branch).

2007

Started 5S and UP220.

2015

Installed the second C.T.C line(Taiwan)

Approved of ISO-9001:2015 by S.G.S.(Indonesia)

1987

Established the first oversea company, Tong Cheng Electric Cable & Wire Co., in Bangkok, Thailand. Specialize in rectangular copper wire.

1997

Approved of ISO-9002 by S.G.S.

2008

Received CTC and Combination of Paper insulated wire order from Shihlin Electric

2018

Installed the first C.T.C line for PT. TongCheng Magnet Wire

1991

Eestablish the second oversea company, International Metal Industry Co., LTD (IMI) in Bangkok, Thailand. Specialize in manufacturing Oxygen-Free Copper Wire, Copper Wire, Copper Bar & Tinned Copper Wire..

2002

Imported the CONFORM extrusion production system.

2010

Installed On-line wire checking system.

2020

Approved of ISO-45001:2018 by S.G.S.(Indonesia)

Approved of ISO-14001:2015 by S.G.S.(Indonesia)

The first local conductor supplier for power transformer. (DPT List)