孟加拉采购需求：二硫代磷酸酯、二乙基钠、松油、羧甲基纤维素、聚丙烯酸酯、黄原胶

I'm reaching out to inquire about Sodium Hydrosulfite with a minimum purity of 88%. We are looking to place an order for one 40-foot container, which amounts to approximately 22,500 kgs. Please provide details on pricing and availability based on the CNF Ctg. terms. Additionally, we prefer payment via letter of credit at sight. Your prompt response with the necessary information will be greatly appreciated as we aim to finalize this procurement efficiently. Thank you!