On September 29, Henan Saiteng Environmental Protection Technology Co., Ltd. provided the following pricing for phosphoric acid: 6400 yuan/ton. The specifications of the product include: usage level: industrial grade; grade: premium quality; content of H3PO4 in the product: 85%. The validity period of this quotation is one day. The provider of the quoted price is Aite (Zhejiang) Supply Chain Management Co., Ltd.