On October 23, the price for acetic anhydride quoted by Ningbo Wanglong Group Co., Ltd. was 4150 yuan per ton. The specifications of acetic anhydride include: quality grade: premium; content of acetic anhydride, %: ≥99%. This quotation is valid for 3 days. The provider of the quotation is Zaozhuang Yitai Energy Technology Co., Ltd.