The market inventories reduced. Up to this weekend, the domestic prices for soda ash are as follows: Soda ash heavy: East China: 1100-1200 yuan South China: 1250-1300 yuan North China: 1200-1300 yuan Northeast China: 1300-1350 yuan Southwest China: 1300-1400 yuan Central China: 1100-1300 yuan Northwest China: 1000-1200 yuan Soda ash light: East China: 1000-1100 yuan South China: 1050-1100 yuan North China: 1050-1150 yuan Northeast China: 1100-1200 yuan Southwest China: 1000-1200 yuan Central China: 900-1000 yuan Northwest China: 700-900 yuan