On January 12, Shandong Lutai's PVC plant operated at reduced capacity, with an operating rate below approximately 40%. The quoted prices are as follows: calcium carbide-based SG-5 ex-factory price is 4,600 yuan/ton, while SG-8 type is temporarily not quoted. The manufacturer's PVC production capacity is 370,000 tons. PriceSeek's analysis of PVC: Bullish-Bearish Score: +1.5. Shandong Lutai's PVC plant operating at reduced capacity, with an operating rate below 40%, significantly reduces supply, potentially driving up spot prices. A score of +1.5 indicates a relatively strong bullish signal, as the substantial decline in capacity utilization (370,000 tons of capacity constrained) and contraction on the supply side are likely to trigger market expectations of shortages.