Caustic soda flakes wholesale import request from Tanzania

I am looking for caustic soda flake with
physical and chemical properties
chemical formula naoh
appearance solid flake
colour white
molecular weight 40.00
specification standard
sodium hydoxide (naoh) 99.0 % min
sodium carbonate (na2co3) 0.90 % max
sodium chloride (nacl) 0.15 % max
sodium sulphate (na2so4) 0.15 % max
iron (fe) 0.007 % max
application
acid neutralisation
manufacturing of soaps and detergents
plastic industry
paper and pulp
please send me cif price to dar es salaa