Industrial metals like copper, nickel and zinc have really picked up steam over the last few months. This has prompted chatter about a new bull market in the base metals, and according to legendary resource investor Rick Rule, the fun has only just begun. The last few years haven't been kind to...

It would appear that the nickel market is heating up. It recently rose by its daily limit in Shanghai, and in London, the price has eclipsed the highs of 2015. The primary driver is thought to be robust demand from steel makers in China, but the market for nickel sulfides is also growing at a...