Aluminium ingots required on FOB

This is Joan Comellas, metals importer and distributor located in Barcelona (Spain).

Our company is interested in aluminum ingots.
If you can supply please advise:

-Minimum order quantity. If it is possible we would like to do a small order for the first time.

-Incoterms. We prefer to get quotation in FOB.

-Payment terms. We use to pay by T/T on the first time, but we expect to pay by L/C on the future.

If it is possible, we would like to visit your site. For us it is really important to meet you and see your products and quality process, as we are looking for a long term relationship.

Waiting for your information.