Four Hong Kong companies have landed on the US sanctions blacklist for allegedly helping Islamic Republic of Iran Shipping Lines (IRISL) to buy a containership.

Delight Shipping, Gracious Shipping, Noble Shipping and Supreme Shipping — all based out of the same Hong Kong address in Sheung Wan — were sanctioned by the US Department of State on Monday after appearing to help the Iranian shipowner take control of the 14,508-teu Hamouna (built 2018).