Shandong Lanhua's PS unit has a GPPS production line with a total capacity of 100,000 tons/year. It entered maintenance on January 25 and has not yet resumed operation. Supply conditions have tightened, and traders are adjusting prices based on market conditions. PriceSeek analysis of PS shows a long-short score of 1.5. The article indicates that Shandong Lanhua's PS production line has been under maintenance since January 25 and has not yet resumed, with an annual capacity of 100,000 tons, leading to reduced supply and tightened availability. This will directly benefit PS spot prices, as supply shortages may drive up market quotations. Traders' behavior of adjusting prices based on market conditions further confirms the tight market supply, and spot prices are expected to show an upward trend in the short term.