Frank OH Sheng Loong is a Partner in the Banking & Financial Disputes, Asset Recovery & International Enforcement and International Arbitration Practices.
His main areas of practice are in international arbitration, litigation and mediation across a wide range of matters from banking, commercial, fraud, cross-border trade, energy, investment to employment, with a focus on complex, high-value and multi-jurisdictional disputes and insolvency and restructuring.
Frank has advised and acted for global private, public, and individual clients from various jurisdictions in the Singapore courts and in both ad hoc and institutional arbitrations under various leading arbitral rules (e.g., SIAC, ICC, UNCITRAL). Frank has also advised and acted for both private investors and State parties in investment treaty arbitrations.
He has extensive experience in arbitration-related court proceedings and has acted for clients in setting aside and enforcement applications, and other court applications arising from arbitration proceedings.
Frank is an accredited mediator at the Singapore Mediation Centre (SMC) and a member of the Law Society Mediation Scheme (LSMS) Panel. He has acted in mediations both as mediator and as counsel. Frank also sits as a Neutral at the Financial Industry Disputes Resolution Centre (FIDReC), where he has been appointed in disputes involving financial institutions.
Apart from his practice, Frank teaches at the Singapore Management University School of Law and was an instructor for various modules in the preparatory course for the Singapore Bar Examinations, including advocacy, civil litigation practice, and insolvency and restructuring. Frank is also a mediation trainer and trains participants at SMC's mediation courses and workshops.
Frank is actively engaged in pro bono work, providing legal representation in criminal matters for financially disadvantaged individuals under the Law Society’s Criminal Legal Aid Scheme. He also volunteers at various legal clinics, assisting underprivileged members of the public and advising non-profit organisations on a range of legal issues.
He graduated from National University of Singapore (LL.B., Hons.) and is admitted to the Singapore Bar.
Matters of significance in which Frank has been involved in include advising / acting for the following:
- In various investor treaty arbitrations and court proceedings both for and against States, including for investors against an African State in an investment treaty arbitration for expropriation of diamond mining leases involving claims in excess of US$1.8 billion; and for a State against a global diversified metals and mining company in an investment treaty arbitration concerning a tax dispute that is valued in excess of US$3 billion.
- In various complex and high value international commercial arbitrations, including for Cayman Islands entities against a Philippines conglomerate in the arbitration of a dispute, governed by Dutch law, over a joint venture for the development and operation of various toll way projects in South East Asia and involving claims in excess of US$1.5 billion; for one of the world's largest solar panel manufacturers in two SIAC arbitrations over claims of more than US$100 million brought by a notable construction group over alleged defective solar panels; for a Singapore technology company against a leading Malaysian engineering company in the arbitration of a dispute over sale and purchase of custom-built electronic goods; for a hydrocarbon exploration company against a major international oil & gas company in the arbitration of claims totalling US$500 million concerning production contracts of coal-bed gas methane projects in the PRC.
- In various arbitration-related court proceedings, including for investors against the Kingdom of Lesotho in an application to set aside an investment treaty award finding the State liable for denial of justice in relation to its role in the shuttering of the Southern African Development Community Tribunal; for a world-leading LSE-listed steel plant designer and manufacturer in successfully setting aside an arbitral award rendered in an ICC arbitration involving claims in excess of £280 million; for a Chinese multinational technology conglomerate in successfully resisting a setting aside application arising from a trademark infringement dispute involving cryptocurrency; for an Omani military and security systems integrator in successfully resisting a setting aside application and an arbitrator challenge arising from an infrastructure dispute against an Indian public sector enterprise; and for the Astro media group in relation to the enforcement of arbitral awards for US$250 million from an international arbitration concerning a proposed joint venture for satellite pay TV services in Indonesia.
- In various complex and high value commercial disputes before the Singapore Courts, including for a well-known German confectionery company against its South Korean distributor in a contractual dispute, governed by German law and involving parallel proceedings in the Korean courts; for a German industrial services provider in a dispute arising from works for a Russian LNG plant; for a semiconductor test company in a dispute over a joint venture to develop a manufacturing facility in China and involving parallel proceedings in the US courts.
- Banks and financial institutions on various matters, including for a bank in relation to ongoing criminal proceedings against former officers of Hyflux Ltd over Hyflux’s alleged omission to disclose certain information on the Tuaspring Desalination Project; for Goldman Sachs in successfully resisting a claim by a prominent Singapore businessman to recover 3.18 billion yen (S$38 million) in investment losses, which was brought in breach of an arbitration agreement; for a private equity firm in various disputes arising from its investment in a well-known real estate development company, which gave rise to legal proceedings in Singapore and Vietnam, including an SIAC arbitration involving claims exceeding US$100 million; and for a privately owned Canadian investment company in various disputes arising from its investment in a Singapore-based asset management company.
- In various employment-related matters, including for a leading global bank in a suite of arbitrations concerning employment-related disputes involving respondents across diverse jurisdictions; for senior executives in relation to a healthcare Artificial Intelligence (AI) company’s internal investigations and disciplinary proceedings; for a senior executive in relation to a Chinese state-owed enterprise’s internal investigations, related disciplinary proceedings and remediation actions; and for a C-suite executive in relation to claims against a Singapore based health tech company.
Related Practices
- Asset Recovery & International Enforcement
- Banking & Financial Disputes
- International Arbitration
- Global Arbitration Review (GAR): The Guide to Advocacy 7th Edition - Chapter on Cultural Considerations in Advocacy: East Meets West (GAR; 2025)
- Singapore Civil Procedure 2025: Volume I, Chapter 44: Disability (Thomson Reuters; 2025)
- Singapore Civil Procedure 2025: Volume I, Chapter 59: Proceedings By and Against Government (Thomson Reuters; 2025)
Contact Details
- d+65 6517 3795
- f+65 6532 5722
- eshengloong.oh@wongpartnership.com
Qualifications
National University of Singapore (LL.B., Hons.)
Singapore Bar