Coltan: Tantalum(Ta) and Niobium(Nb)

Percentage of concentration of the sumatory (Σ)
Ta and Nb

Value in dollars metric ton

From 25.01% up to 30% USD $ 80,000
From 30.01% up to 35% USD $ 100,000
From 35.01% up to 40% USD $ 105,000
From 40.01% up to 45% USD $ 110,000

The agreed price is governed by the table.
For our part, we can reach an agreement and sign a contract of two five (5) to ten (10) tons per month, initially, for one year and their possible roles and extensions, If the seller is in capacity To supply a higher volume will reach an agreement with the buyer.
Starting with an amount of two tons already collected, verified, certified and sealed available for immediate delivery, with all the documents required by law for export