US sanctions could block trade to Ukraine’s Mariupol port, warns P&I club 23 February 2022 Calling at some ports in Ukraine’s disputed regions could breach sanctionsAuthor: Capt. Johnhttps://www.tradewindsnews.com/law/us-sanctions-could-block-trade-to-ukraine-s-mariupol-port-warns-p-i-club/2-1-1173166