Thanks for sharing your excellent DD. Cool that the Japanese are willing to pay for the Silver content in the concentrates, as well as the Zink.
Even if this contract has lapsed (and we don't know that it has), if we can guarantee a predictable suply, the demand will be there, from this contract or a new one.
IMO metals are going to be the "bottleneck" of the future, without which any new inventions or devices are nothing more than a good idea...in theory.
GLTA !!