Company History

HMC Polymers was established in 1983 with ownership comprising leading International and Thai companies and investors. The company has a joint venture heritage with firm roots in Thailand and back to the invention of polypropylene.

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Our international founding joint venture partner is the Netherlands-based company LyondellBasell (then predecessor company Himont) the world’s third largest chemical company and the largest manufacturer of polyolefins.

After obtaining Thailand Board of Investment promotional privileges, HMC Polymers commissioned its first production line in October 1989 in the newly formed Map Ta Phut Industrial Complex.

PTT became a shareholder of HMC Polymers in 2006 and then transferred its ownership stake to its petrochemical subsidiary PTTGC (PTT Global Chemical Public Company Limited) in 2017.

Since the commencement of polypropylene production in 1989, the company has continued to expand and modernize its facilities. Today it has the most modern technology in Thailand and with an operating capacity of 810kt, is one of largest and most advanced facilities in Asia.

HMC Polymers is certified for both ISO 9001 and ISO 14001.

Our Milestones
  • Himont, Metro (Srikrung), Hua Kee, and Bangkok Bank joined together and established "HMC Polymers Company". The company foundation was on 8 December.
  • Construction of HMC Polymers’ first plant was commenced – the first manufacturing facility for polypropylene in Thailand.
  • HMC Polymers' manufacturing site was completed in September and started its first production run in November. The first commercial name “Pro-fax” was used. Capacity was 100,000 tons/year.
  • HMC Polymers’ line was debottlenecked to 160,000 tons/year.
  • Investment in Rayong Olefins Co., Ltd. was made.
  • Construction of PP Production Line 2 was commenced.
  • Production Line 2 was started up with the capacity of 200,000 tons/year with capacity to produce Impact Copolymers.
  • ISO 9001 certification (1994 version) and ISO 14001 were achieved.
  • Production Line 2 was debottlenecked to 250,000 tons/year.
  • Production Line 1 was debottlenecked to 200,000 tons/year.
  • PTT became a shareholder in HMC Polymers with the decision to invest in PDH and PP (Spherizone) projects with a capacity of (each) 300,000 tons/year.
  • Construction of PDH Production line and PP Production Line 3 was started.
  • New Corporate Identity was launched.
  • Construction of PP Production Line 3 was completed.
  • Construction of PDH Production line was completed.
  • CSR-DIW program by Department of Industrial Works was achieved.
  • 1 million man-hours without recordable injuries.
  • 30th Anniversary of HMC Polymers.
  • 2 million man-hours without recordable injuries.
  • Debottlenecked PP Line 3 to 322 KTA.
  • 4 million man-hours without recordable injuries.
  • Debottlenecked PP Line 3 to 360 KTA.
  • 5 million man-hours without recordable injuries.
  • CSR-DIW Continuous Award for PP and PDH.
  • 7.71 million man-hours without recordable injuries.
  • PTT PLC transferred its shareholding to PTT Global Chemical Public Company Limited (GC).
  • 9 million man-hours (5 years operation) without recordable injuries (as of October 2018).
  • 35th Anniversary of HMC Polymers.
  • EPC (Engineering, Procurement, Construction) contract signing for new PP Plant Line IV – approx. volume 220 KT pa of specialty PP resins.
  • Ground breaking and project commencement at the Map Ta Phut site for PP Plant Line IV – expected opening in 2022.