Import of boric acid Bangladesh

Please help to get a quote for the following boric acid complying with the specifications & terms & conditions.
Country of origin: USA/Chili/Turkey/Argentina
Boric Acid: Boric Acid Agriculture Grade Boron: (17+/-2)%
HS code: 2810.0010 others as per Govt. rules.
Standard Pack size: 25/50 kg. Total quantity: 78000 KGS.