Copper Ore needed up to 50,000t per month, CNF

We have buyers for the copper ore upto 50,000 tpm.
But we need the following information.
1. Country of origin
2. Port of shipment
3. Test report of SGS/AFK/Beureau Veritas
4. Copper Percentage
5. Payment terms
6. Price CNF China Port. based on formula
LME Copper price x Cu % in Ore x ( 100-Moisture %) x factor (0.65 for FOB )+ bulk shipping Cost= CNF China Guangzhou or Haiphong Vietnam.
7. Payment conditions only 100% DLC at port of loading.
8. PBG 2% for annual contract
9. Photos of mined ore in stockpile.