Mr Sahat Siahaan > ABNR Counsellors at Law > Jakarta, Indonesia > Lawyer Profile

ABNR Counsellors at Law
Sahat Siahaan photo




Sahat, who was made partner in 2010, is a respected and versatile litigator with expertise that extends across all aspects of dispute resolution, with a particular focus on commercial, shipping, construction & infrastructure, and manpower disputes.

As joint head of ABNR’s Dispute Resolution Department, Sahat has an outstanding track record of wins at all levels of the judicial system, with three Supreme Court, one appellate court and three district court wins over the 2018/2019 period alone, including successfully acting for Wallem Group Ltd. (a leading Hong Kong-based ship management and services company) in the District Court, Appellate Court and Supreme Court in Wallem’s USD 130-million dispute with Indonesian shipping company PT Layar Sentosa Shipping.

He also successfully represented satellite TV provider AXN Holdings, LLC (a subsidiary of Sony Pictures Television) in the District Court, Appellate Court and Supreme Court for its breach of contract claim for USD 958 thousand in damages against PT Karyamegah Adijaya, a satellite TV re-broadcaster.

In other recent matters, he successfully defended a well-known European car manufacturer in the Appellate Court against a USD 772-thousand claim for breach of contract, and a Swedish multinational company as defendant in the District Court in a dispute related to the distribution of USD 3.8 million in dividends. The case is now being heard by the Appellate Court.

In shipping, he acts for owners, charterers, and cargo interests and their insurers in disputes arising from charter parties, bills of lading, shipbuilding contracts, collisions, groundings, salvage, limitation and total loss. His expertise encompasses both dry and admiralty matters, which is particularly beneficial when handling major casualties with a multi-jurisdictional focus.

In non-litigation shipping matters, he assists clients with, among other things, the drafting of charter parties, bills of lading and sale and purchase agreements. He has also been involved in a long list of vessel financing transactions, representing both financiers and borrowers from multiple jurisdictions.

He regularly represents domestic and foreign clients in a variety of arbitration proceedings under BANI, ICC and UNCITRAL rules, and in international arbitration forums such as SIAC, KLIAC and HKIAC. He is currently acting for a Chinese investor in two parallel arbitration proceedings in Singapore related to a joint venture to develop a USD 850-million oil storage and blending facility in Indonesia.

In addition, he is presently acting for Italy-based shipping company Mediterranea di Navigazione S.P.A in its attempts to have 2 international arbitration awards totaling approx. USD 22.2 million enforced in the Central Jakarta District Court against Indonesian state-owned shipbuilder PT PAL.

Sahat holds a law degree from the University of Indonesia, Graduate Diploma in Legal Studies from the University of Canberra, Australia, and an LL.M degree from the University of Western Australia. He is a member of PERADI (Indonesian Advocates Association) and AKHI (Association of Indonesian Legal Consultants).

He is recognized as a “Distinguished Practitioner” for Shipping by Asialaw and is recommended for Dispute Resolution and Shipping by Legal 500 Asia Pacific.


Indonesian and English.


Peradi (Indonesian Advocates Association); AKHI (Association of Indonesian Legal Consultants).

Lawyer Rankings

Indonesia > Dispute resolution

ABNR Counsellors at Law frequently represent clients before the Indonesian Supreme Court, as well as regularly representing clients in arbitration proceedings in the Indonesian National Arbitration Center (BANI). The team also has experience in international arbitration forums such as SIAC, KLIAC and HKIAC. Sahat Siahaan  is an experienced litigator and specialises in commercial, shipping, construction and infrastructure disputes. Ulyarta Naibaho  is another experienced litigator and focuses her disputes practice on commercial, shipping, FDI and mining disputes, and more.

Indonesia > Shipping

(Leading individuals)

Sahat Siahaan - ABNR Counsellors at Law

ABNR Counsellors at Law is singled out for its ‘good knowledge of Indonesian laws and regulations and good practical solutions‘. It advises on both contentious and non-contentious maritime and shipping matters with notable expertise in cabotage, ship registrations, ship financing and security enforcement, ship mortgages and marine insurance. The team also handles a range of litigation matters, from vessel arrests and cargo claims, through to marine insurance disputes and charterparty disputes. Emir Nurmansyah heads the practice and is supported by Sahat Siahaan who is an ‘excellent communicator‘.