Leshan three major chemical plants

What are the three major chemical plants in Leshan? It is Yongxiang Chemical Plant, Hebang Chemical Plant and Hua Fu Chemical Plant. The business scope of the chemical plant includes chloroform, acetone, hydrochloric acid, sulfuric acid, potassium permanganate, methanol, ethanol, sulfur, sodium dithionite, hydrogen peroxide, nitric acid, potassium hydroxide, phosphoric acid, formic acid, sodium hydroxide, ammonia water, aluminum trichloride (anhydrous) and so on.