Are we on the cusp of an M&A boom in metals and commodities, with prices continuing to soar? Or are deals just easier to get through under a new administration? Regardless, Rio Tinto and Glencore have reopened merger talks that could create the world’s largest mining company, with a combined valuation exceeding $200 billion — more than a year after earlier negotiations collapsed, according to Yahoo. The companies confirmed Thursday that they are discussing various deal structures, including an all-share takeover covering part or all of Glencore’s business. The market reacted swiftly: Glencore shares jumped about 10% ... (full story)