January 12 Yantai Wanhua Maleic Anhydride Auction: East China session auction volume 240 tons, transaction volume 240 tons, transaction price 4800 yuan/ton. PriceSeek analysis of maleic anhydride, long-short rating: 1. This East China maleic anhydride auction was fully transacted at 4800 yuan/ton, indicating strong market demand and active buyer acceptance, which may drive short-term spot price increases. The rating is generally positive (+1), as both transaction volume and price suggest tight supply and demand. However, attention should be paid to whether subsequent supply changes will continue to support the upward trend.