Traders form Greece are interested in buying fuel briquettes

We are traders form Greece. We are interested in buying briquettes of good quality for professional use. We would be very pleased to have updated information on some quality parameters regarding this product, such as: burn time, ash content, moisture content, etc.

We would also like to know the price per ton (FOB and CIF, if possible), as well as the total cost for the purchase of 50 tons.
Finally, we would like to have some more information on the payment and delivery process.