U.S. polypropylene (PP) export prices remained flat this week, as persistent uncertainty around potential tariffs continues to weigh on market sentiment. According to a Polymerduniya industry source, spot export prices held steady because weak buying interest persists. Despite a last-minute move by the U.S. to postpone a proposed 30% tariff for three months following talks with Mexico, notably before the August 1 deadline, key trade questions remain unresolved. This continuing ambiguity has kept buyers on the sidelines, limiting fresh demand and encouraging cautious behavior.
Both PP grades were assessed at unchanged levels compared to the previous week: homopolymer at USD 995–1,015/mt FAS Houston, and copolymer at USD 1,040–1,060/mt FAS Houston.
Meanwhile, upstream polymer-grade propylene saw a notable decline, with Thursday spot prices dipping to 31.50–32.00 cents/lb FOB U.S. Gulf, down by 2.50 cents/lb from last week.
In contract markets, July 2025 prices continued their downward trajectory. Polymer-grade propylene contracts settled at 37.50 cents/lb, while chemical-grade contracts closed at 36.00 cents/lb, each representing a 1.00 cent/lb drop from June.
