Eco Shipping Company PJS (ESC), an Iranian company, bareboat chartered two vessels (Eco Elham and Eco Ekram) from the Islamic Republic of Iran Shipping Lines (IRISL). Terra-Marine SA, a Swiss company, managed the vessels under a Ship Management Agreement containing a London arbitration clause governed by English law. Disputes arose and Terra-Marine commenced arbitration in London against ESC. While arbitration was pending, Terra-Marine instituted an in rem admiralty action in South Africa against multiple vessels, including MV Iran Dastghayb, alleging it was an associated ship under the Admiralty Jurisdiction Regulation Act 105 of 1983. The vessel was arrested and released against security. IRISL applied to stay the in rem proceedings under s 7(1)(b) pending the outcome of the London arbitration, offering substitute security. The High Court refused the stay, holding IRISL could not rely on the arbitration clause as it was not a party to it.