cash flow of acrylic fiber has turned negative since ACN price moved up by 900yuan/mt after the holiday

Viewed from the price of raw materials, cash flow of acrylic fiber has turned negative since ACN price moved up by 900yuan/mt after the holiday. And considering the settlement of ACN in February, which is likely to increase to over 11,000yuan/mt, the cash flow of acrylic fiber will reach about -665y