ENFORCEMENT TIGHTENS, RISKS RISE
“For clients, the practical rule is simple: do not anchor in Malaysian waters without prior approval from the Marine Department.”
Source: This document has been approved for distribution by Ambrey Analytics Ltd.
EVENTS
On 11 October 2025, Melaka MMEA detained a foreign-registered general cargo vessel with 11 crew approximately 3.9 nautical miles southwest of Pulau Undan for anchoring without permission. Four days earlier, on 7 October, Penang MMEA detained a Panama-registered tanker northwest of Muka Head on the same grounds; reports also note non-cooperation during document checks.
These are not isolated incidents. Since August, Malaysian authorities have conducted a string of similar detentions for anchoring without permission. On 22 August 2025, MMEA Selangor detained a barter-trade cargo ship 0.6 nautical miles southwest of Sementa after the master failed to produce an anchoring permit; the master and second engineer were taken ashore for investigation under MSO 1952 section 491B(1)(l). On 11 September, Johor MMEA stopped a landing craft tank 1.1 nautical miles southwest of Pulau Kukup for the same offence, and on 23 September detained a Panama-registered tanker 4 nautical miles west of Tanjung Piai under the same provision. Taken together, the August–October actions sit squarely within Malaysia’s ongoing campaign against unauthorised anchoring and ship-to-ship (STS) transfers in its waters. Ambrey assesses that enforcement is now systematic rather than ad hoc, with detention the default for unauthorised anchoring.

CONTEXT
In late July and early August 2025, Malaysia formalised a stricter regime for anchoring and ship-to-ship activity in its waters. Authorities closed the Tompok Utara and Eastern OPL anchorage with effect from 31 July to halt waiting and suspected informal transfers, and designated Muar anchorage later in August as the lawful venue for ship-to-ship operations and vessel services such as bunkering, tank cleaning, dislopping and maintenance, subject to Marine Department approval. The government also signalled a zero-tolerance…
