South Korea has shared information with Iran on vessels linked to Seoul that remain stranded in the Strait of Hormuz, diplomatic sources said Tuesday, in a potential sign the government is moving toward negotiations with Tehran to secure safe passage amid heightened tensions between the US and Iran. The move comes as Chung Byung-ha, a special envoy to Foreign Minister Cho Hyun, is visiting Iran for consultations with senior officials on key issues, including maritime transit and the safety of So