May 19 News According to monitoring: On May 19, Henan Shenma’s 60,000 t/yr adipic acid plant is under shutdown for maintenance, while its 150,000 t/yr plant has a planned shutdown for maintenance with an uncertain restart date. Chempricehub evaluates adipic acid with a bullish/bearish rating of 1: Henan Shenma’s existing 60,000 t/yr adipic acid unit is currently in a maintenance shutdown, and another 150,000 t/yr unit has a planned maintenance shutdown with an uncertain restart timeline. The company's adipic acid supply is contracting, which provides bullish support for spot prices.