Middle East Conflict Effects Ripple Through the Global Chlor-alkali and Vinyls Markets
Energy and Feedstocks
Given the Middle East’s central role in global oil, energy, and feedstock markets, recent hostilities continue to disrupt all chemical value chains, including chlor-alkali and vinyls.
Natural gas serves as the primary fuel for global electricity generation and as a fundamental energy feedstock for the power-intensive chlor-alkali industry. The volatility of this market was underscored just days after the conflict escalated as QatarEnergy suspended LNG production and exports, European gas futures immediately surged by at least 40%, while Asian gas futures spiked by more than 60%. These fluctuations in global energy markets are financially significant, as every $10 per MWh change in electricity costs is estimated to increase Electrochemical Unit (ECU) production costs by $25 to $35 per ECU, depending on the specific region and production technology employed, according to Chemical Market Analytics’ estimates.
Ethylene is another critical feedstock for global chlor-vinyl operations, and the disruption of the Strait of Hormuz has had a profound impact on Asia, which typically receives 80% of Middle Eastern petrochemical exports. Attempts by Saudi Arabia and the UAE to bypass the Strait are often constrained by the vulnerability of loading sites to missile strikes. The resulting shortage of naphtha exports has stifled ethylene production across the Asian continent, forcing some chlor-vinyl operations to run at reduced rates. This has significantly tightened caustic soda availability in Northeast Asia, while Southeast Asia and Australia face escalating prices as they pivot toward the US Gulf Coast and India to replace lost supply, particularly for alumina production and general manufacturing. Ultimately, the US-Israel conflict with Iran is limiting global supply and causing price spikes across the entire value chain, raising concerns over long-term demand erosion for caustic soda and vinyls if the hostilities persist.
Caustic Soda
In March, the global caustic soda market was characterized by rising prices. While North American domestic production ramped up during the month, production declined in Northeast Asia (excluding mainland China). This downturn was driven by curtailments at several ethylene-based vinyl chlor-alkali plants, which faced ethylene shortages caused by naphtha scarcity at upstream olefin plants.
Global caustic soda trade flows are currently being disrupted by the Middle East conflict, especially as freight costs have surged by approximately 50%. These elevated costs have sharply reduced exports from Europe to the US, as well as shipments from Northeast Asia to both Southeast Asia and the US. Meanwhile, in mainland China, tight global supply conditions caused export prices to significantly exceed domestic rates. The Chinese domestic market may have been in an unique position to offset the regional ethylene shortage by increasing operating rates for coal-based (acetylene) vinyls production.
Middle East chlor-alkali capacity represents approximately 3% of the global total. While there have been no reports of physical damage to chlor-vinyl production facilities in the region as of this publication, several regional downstream consumption sites have been impacted, including aluminum smelters. Middle Eastern caustic soda moves through both intra-regional and inter-regional channels. Intra-regionally, an estimated 11% of domestic caustic soda demand is expected to be affected by the conflict. On an inter-regional level, approximately 6% of total global caustic soda trade volumes are currently facing moderate to high risks as these volumes are vulnerable to trade limitations and potential disruptions at critical choke points, including the Strait of Hormuz, the Suez Canal, and the Red Sea. Consequently, trade flows will likely shift in the short term as buyers seek alternative supplies.
Chlorine (Vinyls)
Globally, chlorine produced via the chlor-alkali process is predominantly consumed, transformed, and transported in the form of vinyl derivatives—specifically Ethylene Dichloride (EDC), Vinyl Chloride Monomer (VCM), and Polyvinyl Chloride (PVC). Consequently, these products face risks similar to those affecting the caustic soda market.
As the global EDC market faced a sudden supply shortage in March due to the closure of the Strait of Hormuz, US Gulf Coast (USGC) spot prices spiked. Similarly, disruptions caused by the Middle Eastern conflict have led to a sharp increase in Asian PVC prices, allowing North American producers to secure higher prices for March PVC exports compared to February levels.
In Europe, the impact on the PVC market was particularly stark as it shifted from a buyer’s market to a seller’s market. European PVC demand increased sharply, driven by seasonal improvements and a surge in short-term export opportunities.
Learn More
For more information about the Middle East conflict and its impact on Global Chlor-alkali and Vinyls markets, attend the 10th Annual Global Chlor-alkali & Vinyls Conference, 5-6 May 2026 in Istanbul, Turkey.
—Reporting by Brian Newsome, Global Chlor-alkali Lead (brian.newsome@chemicalmarketanalytics.com) and Eddie Kok, Global Vinyls Lead (eddie.kok@chemicalmarketanalytics.com).