Purchasing copper cathodes 99,99 to Germany

We would like to buy copper cathodes with the purity of 99,97 % - 99,99 %.
Quantity: 5,000- 50,0000 for 12 months.
No radiation. Class A, dimensions: 914 mm x 914 mm x 12 mm, weight of each sheet: 125 kg.
Quantity: 10 x 20 ft container as trial delivery /- 5% confirmed quantity, with possibility of extension of 1000 mt x 12 monthly deliveries, one year contract from successful completion of trial shipment. 
Please send your offer if you are interested in a year contract.