About Us

Milestones

2013

  • POSCO Thailand Stainless Steel Processing Center (POS-tspc) was established as the service and distribution center at the Amata Nakorn Industrial Estate, Chonburi Province.

2011

  • POSCO-Thainox Public Company Limited (POSCO-Thainox) was formed through the acquisition of Thainox, which was complete on 21st September, by POSCO, one of the world's most competitive steel and stainless steel products.

2008

  • Sendzimir Cold-Rolling Mill (ZRM3) starts up.

2007

  • Anncumulated production reached 1,500,00 tons.
  • A third Sendzimir Cold-Rolling Mill (ZRM3) was installed.
  • Thainox was granted with ISO/IEC 17025 : 2005 Certificated for OES (Optical Emission Spectrometer), Hardness and Tensile Testing Laboratory Accreditation.
  • Thainox signed the supply and distribution agreement with POSCO Korea, appointing POSCO as its supplier and distributor agent for its cold-rolled products outside Thailand.

2006

  • Sendzimir Mill was installed to support the expansion of annual production capacity to 300,000 tons.
  • Thainox was granted with ISO/IEC 17025 : 1999 Certificate for Hardness and Tensile Testing Laboratory Accreditation.
  • Thainox was granted with ISO 14001 : 2004 Certificated for Environmental Management System.

2005

  • Batch Annealing Furnace was installed for the production of ferritic stainless steels.

2004

  • Accumulated production reached 1,000,000 tons.
  • Thainox's shareholder structure was changed. The company was also re-named in June as Thainox Stainless Public Company Limited, and was listed in December on the Stock Exchange of Thailand (SET).
  • Thainox was granted the OES (Optical Emission Spectrometer) Testing Laboratory Accreditation ISO/IEC 17025 : 1999.

2003

  • Thainox Research and Development Center (TRDC) was opened to conduct product research, development, and innovations.
  • Thainox was granted with ISO 9001 : 2000 Certificate for Quality Management System.

2002

  • The new APR Line was started up.
  • Thainox was granted with OHSAS 18001 : 1999 Certificate for Occupational Health and Safety Management System.

2001

  • The extension of Phase II was completed with and APR line, Skin Pass Mill no. 2 and a Tension Leveler, allowing Thainox to increase its annual production capacity to 200,000 tons.

2000

  • Accumulated production reached 500,000 tons.
  • Annual production capacity was expanded to 160,000 tons.
  • Thainox was granted with ISO 14001 : 1996 Certificate for Environmental Management System.

1999

  • The new Bright Annealing Line and the completion of Phase II was started up in June.
  • Thainox was granted with ISO 9002:1994 Certificate for Quality Management System.

1998

  • The installation of Bright Annealing Line (BAL) was completed in November.

1997

  • A second Senzimir Cold-Rolling Mill (ZRM2) was installed in April.

1996

  • Thainox announced an expansion plan to increase its annual production capacity to 160,000 tons.

1994

  • Thainox's Inaugural Ceremony, on 19th May, was presided over by HRH Princess Galyani Vadhana.

1993

  • The Rayong Plant's construction was completed with an annual production capacity of 60,000 tons. The first lot of stainless steel coils was produced in November.

1990

  • Thainox Steel Limited was established on July 30.
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