It can be no surprise that copper is suffering oversupply in this COVID environment, but zinc too is in oversupply.  All of the possible byproduct metals of copper mining at Hay Mountain have tanking prices, saving for gold, silver, and rare earth elements.  In this regard, and with gold and silver markets racing higher at record speed, is not time to leave the rest and just go for the gold (at least for the time being)?

https://finance.yahoo.com/news/graphic-zinc-stocks-singapores-lme-131327736.html