Buying chrome concentrate to China

I would like to order chrome concntrate. Purity: 42/44.
Size:0-50 mm.
Monthly purchase volume: 20,000 tons.
Port of Destination: Tianjin Port, China.
Price: CIF.
Please send your offers including the following information:
- Size and size ratio of the chrome concentrates
- Confirmation of whether the chrome products are already in the warehouse or at the dock
- Latest loading date
- Your company's name and receiving bank details
- Types of letters of credit your company can provide (DLC/SBLC).