On January 6, Sinopec North China raised its acetone listed price by 100 yuan/ton to 4,200 yuan/ton ex-works on a cash basis, effective from January 5. This price adjustment applies uniformly to Yanshan Petrochemical and Sinopec-SABIC Tianjin. PriceSeek analysis for acetone, with a bull-bear score: 1. Sinopec North China's acetone listed price increase of 100 yuan/ton to 4,200 yuan/ton ex-works on a cash basis, effective from January 5 and covering Yanshan Petrochemical and Sinopec-SABIC Tianjin, indicates tight supply or strengthening demand in the acetone market. This directly supports spot prices and may boost market purchasing activity. Score +1 (moderately positive), as the increase is moderate, reflecting a pricing signal from the industry leader but not reaching the level of a major event.