According to the price monitoring of Shengyi Society, there were a total of 204 commodities that showed a year-on-year increase in commodity prices in September 2026, mainly concentrated in the chemical industry sector (141 in total) and the rubber and plastic industry sector (17 in total). Commodities with an increase of more than 5% were mainly concentrated in the chemical industry sector; The top three products with the highest increase are acetic acid (42.65%), methanol (37.23%), and dichloromethane (36.48%).

There are a total of 103 products that have experienced a month on month decline, mainly concentrated in the chemical industry (51 in total) and non-ferrous metals (20 in total). Products with a decline of more than 5% are mainly concentrated in the chemical industry sector; The top three products with a decline are diethylene glycol (-41.63%), lithium hydroxide (industrial grade) (-25.56%), and lithium carbonate - industrial grade (-23.38%).

The average increase or decrease this month is 2.68%.