International Arbitration 2026

INDONESIA Law and Practice Contributed by: Emir Nurmansyah, Ulyarta Naibaho, Adithya Lesmana and Adrian Panata, ABNR Counsellors at Law

ABNR Counsellors at Law was founded in 1967 and is Indonesia’s longest-established law firm. It pioneered the development of international commercial law in the country following the reopening of the economy to foreign investment after a period of isolationism in the early 1960s. With over 100 partners and lawyers (including two foreign counsel), ABNR is the largest independent, full-service law firm in Indonesia, and

one of the country’s top three law firms by number of fee earners, giving it the scale needed to simultane - ously handle large and complex transnational deals across a range of practice areas. It also has global reach as the exclusive Lex Mundi member firm for Indonesia since 1991; Lex Mundi is the world’s lead - ing network of independent law firms, with members in more than 100 countries.

Authors

Emir Nurmansyah is a senior partner at ABNR and a member of the firm’s management board. He is one of the most respected and versatile lawyers in Indonesia today. After some 30 years in legal practice, he is a market-

Adithya Lesmana is a partner at ABNR and holds a master’s degree in dispute resolution from Queen Mary University. His practices encompass corporate litigation, arbitration, maritime disputes, restructuring and

leading lawyer for project finance and development, banking and finance, corporate/M&A and foreign direct investment. Emir also offers extensive experience and expertise in restructuring and insolvency, shipping, aviation and technology, media and telecommunications.

insolvency. He has substantial experience in representing clients in arbitration proceedings under the rules of the Indonesian National Board of Arbitration (BANI), the Singapore International Arbitration Court (SIAC) and the International Chamber of Commerce (ICC), and in the enforcement of international arbitral awards in Indonesia.

Ulyarta Naibaho is an experienced and versatile litigator, and joint head of ABNR’s award-winning disputes and ADR department. She is also a listed arbitrator in the Indonesian National Board of Arbitration (BANI).

Adrian Panata is a senior associate at ABNR whose practice focuses on arbitration, commercial and criminal litigation, employment and industrial relations disputes, and corporate investigations. He has extensive

Her work in contentious matters extends across all industry sectors and practice areas, with a particular emphasis on restructuring and insolvency, commercial, shipping, foreign direct investment, mining, cybersecurity/cybercrime, administrative law, corporate crime and environmental disputes. She also frequently represents clients in arbitration proceedings and other alternative dispute resolution forums. Ulyarta holds an LLM degree in mineral law and policy from the University of Dundee, Scotland.

experience representing clients in complex dispute resolution matters across various industry sectors, including arbitration proceedings under the rules of the Indonesian National Board of Arbitration (BANI), the International Chamber of Commerce (ICC), and the United Nations Commission on International Trade Law (UNCITRAL). Adrian has also been involved in arbitration-related court proceedings, such as applications for the annulment of arbitral awards.

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