Can Tight Availability and Higher Feedstock Costs Sustain the US AEM Price Rally?

USA Ethylene Acrylic Elastomer (AEM) prices increased **.*** in July **** as tighter spot availability, higher ethylene costs, and stronger downstream procurement strengthened market pricing. Producers prioritized contractual customers, while spot buyers accepted firmer offers to secure limited material amid rising supply-chain uncertainty and a narrowing availability buffer.

The bullish AEM market environment was reinforced by rising feedstock costs and heightened supply-risk concerns. Spot ethylene FOB USGC prices increased to approximately $***/MT from around $***/MT earlier in the month, raising production costs and strengthening the cost floor for AEM. U.S. production remained operational without major shutdowns, but working inventories stayed relatively lean as export nominations absorbed available volumes and reduced the spot pool. Higher ethylene replacement costs, combined with geopolitical uncertainty surrounding alternative cracker feeds, encouraged international buyers to secure U.S. material, limiting availability for domestic purchasers. The Atlantic hurricane season also increased precautionary...