Crystal Diamond Mixture importation to Korea, South

I'm looking for the Crystal Diamond Mixture(CDM,purity:97%,quantity:10MT/month) so please send me a basic informations as follows.

1.Origin

2.Typical specification(purity,size distribution)

3.Certificate of Analysis(CoA)

4.Copy of fresh BL deleted confidential

5.Pictures(close up and loaded in container)

6.Terms of payment by TT(ex,xx% down payment,xx% balance against shipping documents)

7.Delivery time after receipt of down payment

8.HS code(7104.90?)

Awaiting your faithful reply for each query or request.

Have a great day!

Best regards,