HCMC – Siam Cement Group (SCG) will suspend operations at its Long Son Petrochemicals complex in Ho Chi Minh City from mid-May 2026, citing supply disruptions linked to Middle East tensions.
In a filing to the Stock Exchange of Thailand, SCG reported that ongoing instability has disrupted feedstock supply chains for the petrochemical sector, particularly shipments through the Strait of Hormuz.
The company has sought alternative supplies outside the region and accepted higher costs to maintain output. However, constraints remained severe, affecting both costs and production continuity.
SCG determined that a temporary shutdown at Long Son Petrochemicals was necessary to reduce operational risks under prolonged uncertainty.
The suspension is expected to generate fixed cash costs of about 250 million baht per month. During the shutdown, the plant will undergo maintenance and accelerate preparations for an ethane integration project in Vietnam to improve long-term competitiveness.
Long Son Petrochemicals is a multi-billion-dollar foreign-invested project. The complex began commercial operations in late September 2024 but halted weeks later due to industry challenges. It resumed operations in August 2025 as market conditions improved, supported by lower crude oil prices.
