On September 28, Chengdu Rongjiaxin Chemical Products Co., Ltd. provided a quotation for cryolite at 11,200 yuan per ton, with specifications as follows: YunTianHua industrial-grade 98%, YunTianHua Fluor Chemicals from Yunnan YunTianHua. The validity period of this quotation is 10 days. The quote was provided by Chengdu Rongjiaxin Chemical Products Co., Ltd.