On February 9, Shandong Lutai's PVC plant operated at reduced capacity, with the operating rate approximately below 40%. The quoted prices are as follows: calcium carbide-based SG-5 ex-factory price is 4,800 yuan/ton, while the SG-8 type is temporarily not quoted. The manufacturer's PVC production capacity is 370,000 tons. PriceSeek analysis of PVC, bullish-bearish score: 1.5. Shandong Lutai's PVC plant operating at reduced capacity, with the operating rate dropping below 40% and a capacity of 370,000 tons, indicates a significant reduction in supply. Reduced supply typically drives up spot prices, as potential tightening in market supply may intensify, which is favorable for PVC prices. The score is +1.5 (strong bullish signal), as the operating rate falling below 40% and reduced capacity operation directly impact the supply side, potentially increasing upward pressure on spot prices.