we are Chinese company and intend to buy mining product as follows: 1. copper ore, copper cathode, gold ore, cobalt ore, tantalite ore, chrome ore etc. 2. FOB Dar es Salaam or CIF China 3. Payment by LC / TT 4. quantity up to supplying capability If you can supply, please send me your best offer, we want to do long term deal in stead of spot deal.