BHP Group is in talks with Nutrien Ltd. about a potential partnership in its massive Canadian potash venture as the world’s biggest mining company moves closer to a final decision on the project, according to a Bloomberg report. The two companies are discussing multiple options, including Nutrien becoming the operator and selling the potash through its existing channels, or the Canadian company taking a stake in the Jansen mine, according to people familiar with the matter. There is no guarantee the talks will lead to a deal, said the sources.