SANTIAGO : U.S. oil major Exxon Mobil is planning a meeting with Chilean officials to discuss lithium investment opportunities, according to a registry of lobbyist meetings and a person familiar with the matter, as fossil fuel companies increasingly look to invest in production of the metal needed for electric vehicle batteries. Top U.S. oilfield services company SLB, which is similarly expanding into lithium, also recently met with Chilean mining officials, according to the registry and the