On May 28, at the beginning of the week, PVC prices in the Zibo region saw a slight rebound. The futures market turned positive, while spot prices followed the market trend. Dealers' quotations increased by RMB 30-50/mt compared to the previous trading day. Market sentiment improved slightly, but actual transactions remained moderate. Currently, the mainstream ex-works price for calcium carbide-based PVC Type 5 is in the range of RMB 4,800-4,850/mt.