【Market Pulse】U.S.-Iran Conflict Triggers Raw Material Volatility: Analysis of Styrene (SM) and Butadiene (BD) Trends on TPR Pricing

At the beginning of 2026, as tensions between the U.S. and Iran escalate, global energy and chemical supply chains are once again facing immense pressure.
As a professional manufacturer of thermoplastic elastomers, U-PELLET is closely monitoring the ripple effects of Middle Eastern instability on the TPR (SBS-based) raw material chain.
 

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I. Deep Correlation Between Core Raw Materials and Oil Prices

The core base material of TPR is SBS (Styrene-Butadiene-Styrene), and both monomers are derived from the petroleum cracking process:
 

• Styrene Monomer (SM): Highly susceptible to fluctuations in crude oil prices. Instability in the Middle East leads to rising oil prices, directly driving up SM production costs.
• Butadiene (BD): As a key component of synthetic rubber, supply-side shortages are directly reflected in SBS quotations, subsequently impacting the market price of terminal TPR.

 

II. Why Does Conflict Lead to TPR Supply-Demand Imbalance?

Beyond rising material prices, conflict brings a dual blow to logistics and production capacity:

● Shipping Risks and Surging Freight Rates: Blockages in Middle Eastern shipping lanes have made the scheduling of global chemical vessels difficult. Volatile maritime freight costs have become an uncontrollable expense.
● Hedging Sentiment Triggers Stockpiling: Large-scale global OEMs, seeking to ensure uninterrupted production, have begun hedging purchases, causing spot market supply to become increasingly tight.
 

🚩 2026 Q1 Raw Material Risk Index Forecast

 

Monitoring Item	Price Trend Forecast	U-PELLET Response Strategy
Styrene (SM)	Continuous Rise (High)	Diversified upstream supply chain layout to reduce single-source reliance
Butadiene (BD)	High-level Volatility (Medium)	Optimized inventory management to ensure stable spot supply
TPR Terminal Price	Significant Upward Pressure	Providing long-term contracts and formula adjustments to mitigate impact on customers