Boric Acid Grade Granular

xxxxxxxxxxxxxxxx general commodity trading company in dubai united arab emirates. we are interested in boric acid, gently offer 200 mt of boric acid technical [grade granular] whereas we need 25kg bag shipment every month.
boric acid (technical grade, granular, low sulphate)(h3bo3) test specifcation
01. b2o3 56.25% min
02. so4 500ppm max
03. ci 10ppm max
04. fe 7ppm max
05. purity 99.90% min
thanking yo