Buy Offer - Zinc Sulphate

we are the largest distribution company in pakistan and doing the seed business in pakistan since last 20 years. and now we want to distribute the zinc sulphate to b to b and end user / farmers.
we want to purchase the bulk quantity from you.

please find the following specification of zinc and quote and send me a sample of zinc sulphate.
specification of zinc sulphate hepta:

 zinc 21% minimum
 magnesium .5 %
 copper 01%
 lead .003 %
 arsenic .001%
 cadmium .002%
 cobalt .002%
 nickle .002%
 murckery .0002%
early response will be a thankful.