MV “Tai Harmony” v Sure Success Steamship S.A

On 28 April 2026, the Supreme Court of Appeal of South Africa delivered judgment in MV “Tai Harmony” v Sure Success Steamship S.A [2026] ZASCA 60.

The case concerned the scope of a court’s power to order additional (“top‑up”) security under s 5(2)(d) of the Admiralty Jurisdiction Regulation Act 105 of 1983, and the appealability of interlocutory orders in admiralty proceedings.

The decision is significant in that it confirms the court’s ongoing supervisory role over security once admiralty jurisdiction has been exercised, including in support of foreign arbitration, while reaffirming a restrained approach to appellate intervention in procedural rulings.

Background

The dispute arose out of a time charterparty between the owners, Sure Success Steamship S.A, and the charterer, Perfect Bulk Limited (PBL). The charterparty required the charterer to pay hire and to supply and pay for bunkers.

Two claims arose:

• unpaid hire following early redelivery; and
• unpaid bunkers, which the owners later settled with suppliers for approximately USD 350,000.

The bunker claim crystallised only after settlement and was subsequently added to ongoing London arbitration proceedings.

Arrest and security

To secure its hire claim, the owners arrested the MV Tai Harmony in South Africa as an associated ship and obtained security by way of a Letter of Undertaking in the amount of approximately USD 876,000. At the time, the owners expressly reserved the right to seek additional security in respect of the bunker claim once quantified.

After settling the bunker liability, the owners applied urgently to increase the security under s 5(2)(d) by approximately USD 435,000. The High Court granted the application.

Issues

The Supreme Court of Appeal was required to consider, in summary:

• whether s 5(2)(d) permits security to be increased for a claim that was not initially secured but later crystallised;
• whether the court retained jurisdiction to order additional security despite the dispute being determined in foreign arbitration;
• what is required to establish a prima facie claim and a genuine need for further security; and
• whether an order referring the issue of association to oral evidence is appealable.

Decision and reasoning

Top‑up security under s 5(2)(d)

The Court confirmed that s 5(2)(d) confers a wide discretionary power to increase security “for any claim”, including claims pursued in foreign forums, once admiralty jurisdiction has been exercised.

A security arrest is procedural in nature: it does not determine liability, but ensures that meaningful security is available. Security is not confined to the value of the vessel and is generally driven by the value of the claim.

The Court held that the owners had established:

• a prima facie bunker claim based on the charterparty and settlement; and
• a genuine and reasonable need for security, given that the charterer was a special‑purpose vehicle with no apparent assets.

Challenges to association were held to belong in set‑aside proceedings, not in a topping‑up application.

Appealability of referral to oral evidence

In the related matter, the Court held that an order referring the issue of association to oral evidence is purely procedural, lacks finality, and is not appealable, whether under the traditional Zweni principles or the “interests of justice” approach.

Outcome

• The appeal against the top‑up security order was dismissed.
• The application for leave to appeal against the referral to oral evidence was struck off the roll.
• An application to adduce further evidence was likewise not competent.
• Costs were awarded, including the costs of two counsel.

Comment

The Tai Harmony decision reaffirms South Africa’s pragmatic approach to maritime security. It confirms that courts will supervise and adjust security where justified, even in support of foreign arbitration, while maintaining strict discipline against piecemeal appeals in interlocutory matters.

For maritime creditors, the judgment underscores the continued reliability of South African courts as a forum for obtaining and maintaining effective security.