History
1990
- Established the Company with a registered capital of Baht 4,000 million (13 March 1990).
- Obtained an investment promotion certificate from the Board of Investment for the production of hot-rolled coils (8 August 1990).
- Established Prachuap Port Company Limited, with the Company holding 51% equity, to operate a deep-sea port business (4 October 1990).
1992
- Invested in Thai Coated Steel Sheet Company Limited to operate an electro-galvanized steel sheet production business (17 February 1992).
- Deployed 85 engineers and technical staff to Italy for training and technology transfer (May 1992).
- Increased registered capital to Baht 4,800 million (October 1992).
1994
- Increased registered capital to Baht 5,100 million (January 1994).
- Converted into a public limited company (24 March 1994).
- Commenced production of hot-rolled coils (HRC) (23 April 1994).
- Listed on the Stock Exchange of Thailand (8 September 1994).
1995
- Received BOI approval to expand production capacity from 1.8 to 2.4 million tons per year (13 March 1995).
- Invested in Thai Cold Rolled Steel Sheet Public Company Limited (7 June 1995).
1999
- Established West Coast Engineering Company Limited a 99.99%-owned subsidiary, to provide maintenance, engineering design, and technical services (January 1999).
2003
- Invested Baht 1,000 million in a hot-rolled coil pickled and oiled (HRC P/O) production line.
- Invested Baht 3,600 million to expand hot-rolled coil production capacity from 2.4 to 4.0 million tons per year.
- Received the “Outstanding Industry Award 2003” from the Prime Minister (May 2003).
2004
- Commenced commercial production of hot-rolled coil pickled and oiled (HRC P/O) (installed capacity of 1 million tons per year) (May 2004).
- Exported hot-rolled coil pickled and oiled (HRC P/O) for the first time (September 2004).
- Officially inaugurated the hot-rolled coil pickled and oiled (HRC P/O) plant (October 2004).
2005
- Completed expansion of hot-rolled coil production capacity production capacity from 2.4 million tons to 4.0 million tons per year (February 2005).
- Enhanced production capability to achieve hot-rolled steel thickness ranging from 1.0 mm to 19.0 mm (March 2005).
2008
- Produced high-quality hot-rolled steel sheet in coils with a minimum thickness of 0.80 mm (February 2008).
- Invested Baht 3,450 million to acquire shares in Thai Cold Rolled Steel Sheet Public Company Limited, resulting in a 50.15% shareholding (26 September 2008).
2011
- Entered into an agreement to acquire the integrated steelmaking assets (Teesside Cast Products) in the United Kingdom from Tata Steel UK Limited for USD 469 million (24 February 2011).
2013
- Divested shares in Thai Cold Rolled Steel Sheet Public Company Limited to JFE Steel Corporation and Marubeni-Itochu Steel Inc., reducing the shareholding to 35.19% (1 February 2013).
2015
- Filed a petition for the liquidation of Sahaviriya Steel Industries UK Limited with a local court in the United Kingdom (2 October 2015).
2016
- Entered business rehabilitation and was appointed as the plan preparer by court order (10 March 2016).
2020
- Effected the delisting of the ordinary shares of Sahaviriya Steel Industries Public Company Limited from the Stock Exchange of Thailand (11 July 2020).
2023
- Considered the petition and ordered the termination of the Company’s business rehabilitation pursuant to Section 90/70 of the Bankruptcy Act B.E. 2483, by the Central Bankruptcy Court (13 December 2023).
2025
- Completed the entire business transfer of Thai Coated Steel Sheet Company Limited to Thai Cold Rolled Steel Sheet Public Company Limited, a subsidiary of the Company (1 October 2025).