US Propylene Price Weakness Continues in June, Oversupply Persists

US Propylene Price Weakness Continues in June, Oversupply Persists

Lewis Carroll 02-Jun-2026

US propylene prices are expected to weaken further into June 2026, driven by persistent oversupply, elevated inventories, and soft derivative demand. Strong refinery throughput and improved NGL recovery continue to swell merchant availability, while packaging, automotive, construction, and consumer goods demand remain subdued. Export pull into Latin America and Asia is weak, and hurricane season caution is limiting restocking. Crude oil is expected to remain range bound, offering only marginal cost support. May’s trend already reflected this weakness. Polymer grade values collapsed by 11.3% drop by May 31 as sellers chased liquidity amid rising inventories. Maintenance related tightness eased, logistics improved, and derivative demand remained muted. With no strong demand catalyst in sight, June pricing is expected to remain under pressure unless unexpected outages or a sudden export rebound emerge.

Selenis has effectively manufactured recycled PET chips using terephthalic acid sourced from Circ®, a textile-to-textile recycler based in Virginia. The chip production took place through a series of batches at Selenis' pilot plant in San-Giorgio, Italy. By utilizing inputs recovered from polycotton textile waste, Selenis has created high-quality PET chip, which has been further processed into DTY yarn. This yarn will play a crucial role in product development as Circ prepares for additional capsule launches. Selenis is leveraging the success of this initial collaboration phase and is committed to advancing towards an offtake partnership to support Circ's inaugural industrial facility. Eduardo Santos, Head of Corporate Strategy at Selenis, remarked that the monomer synthesis showed a performance comparable to virgin terephthalic acid. He expressed optimism about the consistent quality of Circ's monomer output and anticipated future commercial success. Santos pointed out that the Circ partnership complements Selenis's existing mission and goals for a more sustainable textile industry. He further stated their anticipation of expanding upon this collaboration and providing support for Circ's forthcoming commercial production trials.

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