China PVC snaps four-week rally as Dalian futures rout and weak demand outweigh 14-month inventory low

China’s PVC market reversed its multi-week supply-led rally across both domestic and export segments in the week ending 5 November 2026, as a four-day sell-off on the Dalian Commodity Exchange (DCE), a mid-week collapse in global crude oil benchmarks, and persistently weak downstream demand forced sellers to trim offers.