Siam Cement Group Halts Vietnam Petrochemical Plant Amid Iran War Supply Disruptions

Bearish (-0.7)Impact: High

Published on April 23, 2026 (3 hours ago) · By Vibe Trader

Thailand's Siam Cement Group has announced the suspension of operations at its ethylene petrochemical plant in Vietnam, citing supply chain issues directly linked to the ongoing Iran conflict [1]. The company expects to incur losses exceeding $7 million per month as a result of the operational halt [1]. This shutdown marks the second plant in the region to suspend operations due to the Iran war, underscoring the escalating disruptions in Asian energy and materials supply chains [1].

The Iran conflict has triggered broader energy shocks throughout Asia, affecting not only petrochemical production but also causing ripple effects in oil imports, inflation, and financial markets [1]. Market analysis reveals that supply restrictions stemming from the conflict have driven US crude oil prices up by more than 11% and Brent crude by nearly 8%, following a recent address by former US President Trump [1]. These surging energy prices are intensifying pressure on industrial producers such as Siam Cement Group, which now faces significant monthly losses and operational uncertainties [1].

Industry experts have warned that continued instability in the Middle East could result in further price hikes for raw materials. The president of ASICS specifically cautioned about rising costs if the war persists [1]. In response to the tightening supply situation, Siam Cement Group is closely monitoring developments and adjusting its trading strategies accordingly [1]. Market sentiment remains cautious, with traders focusing on support and resistance levels in energy and materials stocks as volatility increases [1].

CONCLUSION

Siam Cement Group's suspension of its Vietnam ethylene plant highlights the severe impact of the Iran conflict on Asian supply chains and energy markets. With significant monthly losses and rising energy prices, the company and the broader market face ongoing uncertainty and heightened volatility. Industry experts warn that continued instability could further escalate costs and operational risks.

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