Citing Western officials, the report said the mechanism — linking state-owned firms, a government insurer, and an unregistered financial intermediary — has provided a critical lifeline to Iran’s sanctions-hit economy, with state insurer…

Citing Western officials, the report said the mechanism — linking state-owned firms, a government insurer, and an unregistered financial intermediary — has provided a critical lifeline to Iran’s sanctions-hit economy, with state insurer…