Key facts
- CEO Thammasak Sethaudom said SCG plans to reopen its core plastics plant in Vietnam in mid-2027.
- SCG has halved its Middle East feedstock sources and is making plastic from US ethane, the CEO said.
- SCG has struggled to obtain naphtha, the oil-derived material used for plastics, the report said.
Thailand's Siam Cement Group plans to reopen its core plastics plant in Vietnam in mid-2027, CEO Thammasak Sethaudom told Nikkei Asia, after suspending operations because of the closure of the Strait of Hormuz. The company is also diversifying its feedstock sources away from the Middle East and has halved its Middle East sources, according to the report.
SCG has struggled to obtain inputs including naphtha, the oil-derived material used to make plastics. The company's chemicals arm declared force majeure at its Rayong Olefins subsidiary in March 2026 after the Hormuz closure restricted procurement of key raw materials, and that plant began restarting on September 17, 2026.
The report did not specify when the Vietnam plant was suspended or give a precise reopening date beyond mid-2027.