Also from the same article...

CESL Process

While there has been talk of building a refinery in BC for decades, so far the political will hasn’t been there. The smelter’s ore feed could not only be derived from KSM, but all of the neighboring deposits, including Red Chris, Schaft Creek, Galore Creek, Newmont’s Tatogga, and no doubt from the many deposits waiting to be discovered. Elsewhere in BC Tech’s partially owned Highland Valley, Gibralter and Copper Mtn could potentially supply feedstock for a BC copper smelter/hydromet. And the Yukon has a lot of copper, Carmacks and Casino for example.

The key to this plan, wild as it may seem, is the smelter must have the ability to process copper and gold. Well it just so happens that Teck Resources, part-owner of Highland Valley, Galore Creek and Schaft Creek, has the technology to do it.

Cominco Engineering Services (CESL), a subsidiary of then-Teck Cominco Metals, began developing the CESL Process in 1992, as an alternative to conventional smelting and refining of copper concentrates for the production of LME Grade A copper cathode.