Sodium hydrogen sulphide NaHS

kindly send me a quotation for the following for a possible construct /order.
1. product: sodium hydrogen sulphide (NaHS)
2. specification: ?70 % min. product, yellow/brown flakes. na2s - 0.5 % max, na2co3 - 1.0 % max, fe - 0.003 % max, water insoluble - 0.005 % max.
3. packaging: 900 kg bulk bags
i will appreciate your support.
rgds