On January 12, the PVC market in Linyi opened low and closed high, with the futures market fluctuating upward. The spot market followed suit, with dealers generally quoting higher prices. Market sentiment improved, and trading activity was satisfactory. Currently, the mainstream quotation for calcium carbide-based PVC type 5 is in the range of 4,600–4,650 yuan per ton. PriceSeek's analysis of PVC shows a long-short score of 1.5. The article indicates that the PVC market opened low and closed high, with the futures market fluctuating upward, suggesting a shift toward positive market sentiment. The spot market followed the trend, with dealers generally raising their quotes to 4,600–4,650 yuan per ton. The improved market atmosphere and satisfactory trading activity reflect stronger demand and support from the supply side. This is favorable for the rise in PVC spot prices, and the performance of the futures market also conveys positive signals, driving an overall upward trend in prices.