China’s PVC market edged lower in the week ending 18 September 2026, snapping a five-week rally. A sharp regulatory crackdown on coal futures dismantled cost support for the carbide route, while coastal ethylene-based producers remained trapped in steep negative margins against a resistant downstream sector.
Following Wednesday’s clean sweep, Shenhua Baotou Coal Chemical Co. lifted reserve thresholds across all prime grades, triggering severe downstream resistance that halved overall platform conversion to 50.8%.