Ang tanso ay hindi ang tanging produkto —ginto, pilak, at molybdenum (isang metal na ginagamit upang patibayin ang bakal) ay nakukuha rin, kasindami ng 14,000,000 gramo ng ginto at mahigit na 110,000,000 gramo ng pilak bilang mga kakambal na produkto sa isang taon!
Copper is not the only product —gold, silver, and molybdenum (a metal used to strengthen steel) are also produced, as much as 500,000 ounces [14,000,000 g] of gold and over 4,000,000 ounces [110,000,000 g] of silver as by-products in one year!jw2019 jw2019