Freeport-McMoRan Inc.’s new boss says she’s focused on unlocking a large mine’s worth of copper from vast stockpiles of waste rock in an “aggressive” push to boost supply of the metal as global demand climbs. The US copper giant has been generating strong profits in recent years from its operations in the US and Indonesia, drawing speculation it could put those returns toward takeovers after years on the sidelines. The firm spent much of the past decade cutting costs, reducing debt and resolving a yearslong dispute over ownership of Grasberg mine with Indonesia’s government. Yet Chief Executive Officer Kathleen Quirk ... (full story)