Triode Wire Labs

Recently while looking at the Triode Wire Labs web site, I noticed in the descriptions there is no mention of the type of copper or silver used in the cables and cords. For a company that is very highly regarded, and reviewed,  I found that to be a bit frustrating. I expected to see  UP-OCC Copper and UP-OCC Silver made at the Wan Lung factory in Taiwan that is licensed to produce them listed in the description, as they are used in many of the best cables today. But nothing, perhaps they are using secret sauce?

Any insight out there?