With the popularity of Moscow Mules continually rising, and copper cups being the only way to properly consume one, logically the price of copper must go up.
On a serious note, if you read the quarterly statements of publicly traded mining companies, they outline the production and useful life of each of their mines.
Galli, great resource. Much appreciated-- Here’s a gigantic report with a lot of interesting data I found while searching on the site. Now for the fun part, sifting through it and finding the useful stats:
Check investor relation sections of each miner you’re looking at, a lot of them like to highlight their flagship mines in their corporate presentations. For everything else, you’ll have to dig into their financials.