Ivory Coast has sold about 1 million metric tons of cocoa in export contracts for the 2026-27 main crop, but has started to slow sales due to concerns about the impact of a looming El Nino weather pattern on output, four sources told Reuters.The Abidjan-based Coffee and Cocoa Council (CCC) has also raised its premium on further sales from zero to at least £100 ($135) per ton above the futures price…