The electric vehicle revolution and a new wave of infrastructure build in China, Europe and the US is driving a huge copper thematic. Prices are just short of all time highs but this hasn't translated in to equity prices yet, so there is time to pick your winners. The big producers are desperate to find the next big mine, but are reliant on the junior explorers to the do the work for them. We speak four industry experts about the supply and demand story and what investors need to be aware of and look out for before deciding where to place their money.