KOH Swee Yen is a Partner in the Commercial & Corporate Disputes and International Arbitration Practices.
She has an active practice as counsel, with a particular focus on complex, high-value and cross-border disputes across a wide spectrum of matters from commercial, energy, international sales, trade to investment. She regularly appears before the High Court and Court of Appeal and in international arbitrations under the major institutional rules, including ICSID, ICC, ICDR, SIAC and UNCITRAL.
Swee Yen’s investment arbitration practice includes successfully acting for the Independent State of Papua New Guinea in defeating an ICSID claim brought against the State for expropriation of mining assets, acting for foreign investors against Laos PDR in investment treaty claims arising from the misappropriation of gaming investments, including securing a ground-breaking victory on the applicability of PRC bilateral investment treaties to Macau SAR based on state succession principles, and acting against the Kingdom of Lesotho in an investment treaty arbitration for expropriation of diamond mining leases and 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.
As part of her commercial arbitration practice, Swee Yen has also acted as counsel in energy disputes, including for an affiliate of a leading Nigerian oil and gas conglomerate against a PRC state-owned oil entity for breach of an international sales contract for crude oil valued at over US$60 million and for PRC investors in a dispute concerning a US$80 million petroleum exploration and production project in Georgia.
The litigation matters that Swee Yen has been involved in include acting for a State in proceedings concerning the management of US$1.5 billion of assets, defending the shareholders of an oil trading company against the international arm of Yukos Oil in a US$55 million fraud and asset-tracing multi-jurisdictional claim, acting for a family office in proceedings concerning investments in private equity funds and other assets valued at over US$127 million, acting for corporate entities against their former employees for breach of non-compete and non-solicitation clauses and obtaining search orders against these individuals, and successfully arguing a landmark decision which laid down the guidelines for representative actions in Singapore before the Court of Appeal.
Swee Yen graduated with First Class Honours from the National University of Singapore (NUS). She was awarded the Singapore Academy of Law prize for being the top student in her final year, and won subject prizes for Evidence and Procedure and Intellectual Property Law. Swee Yen served as a Justices' Law Clerk to the Chief Justice of Singapore before entering private practice. She also received appointments as Law Clerk to assist the Competition Appeal Board in the first and subsequent appeals lodged against the Competition Commission of Singapore’s Infringement Decisions relating to price fixing matters. She was commended for her “clear and crisp thoughts on the issue assigned to her” as amicus curiae in Huang Danmin v Traditional Chinese Medicine Practitioners Board  SGHC 152.
Swee Yen is the Vice-Chair of the IBA Arbitration Committee. She is also the Vice-Chair of the IPBA Dispute Resolution and Arbitration Committee, and a member of the Editorial Board of the ICC Dispute Resolution Bulletin and the ICCA-ASIL Task Force on Damages. She has also served as co-chair of the YSIAC Committee and IBA Arb40, and is on the Panel of Arbitrators in the Asian International Arbitration Centre and Hong Kong International Arbitration Centre. She is a council member of International Law Association – Singapore Branch.
She has been a member of the Rules of Court Working Party since 2005, and was also appointed as a member of the Civil Justice Commission with the mandate to effect transformative changes to the litigation process in Singapore. She is appointed by the Ministry of Home Affairs as a member of the Public Entertainment Appeal Board, and is also a member of the Casino Regulatory Authority’s Patron Dispute Committee.
Swee Yen is highly recommended for her expertise in resolving complex international disputes, and is named in various legal publications, including The Legal 500, Chambers Asia-Pacific, Chambers Global and Benchmark Litigation Asia-Pacific. Most recently, she has been listed as one of the world’s leading arbitration practitioners in Who’s Who Legal: Arbitration 2019 and as a recognised expert in Commercial Arbitration in Experts Guides 2019: The World’s Finest Lawyers Chosen By Their Peers. Described as being "in a league of her own", "extremely talented" and "incredibly hard-working and persistent" with a "very deep understanding of the law" by Chambers Global, sources also praise her for a "keen sense of strategy" and "great ability to quickly grasp her clients' perspective and understand their commercial issues". The Legal 500 says that Swee Yen is the "go-to disputes lawyer in Singapore", with an "ability to zone right in on the issues with precision and confidence", and is "brilliant, decisive and fearless."
- National University of Singapore (LL.B., Hons.)
- Singapore Bar
- Roll of Solicitors of England & Wales
- WongPartnership in Who's Who Legal: Arbitration 2017
- Investor wins case in first Court of Appeal decision on investor-state arbitration
- The Investment Treaty Arbitration Review, 4th Edition
- Getting The Deal Through - Investment Treaty Arbitration 2019 - Singapore Chapter
- The Asia-Pacific Investigations Review 2019 - Singapore Chapter
- The Investment Treaty Arbitration Review, 3rd Edition - Objections of Manifest Lack of Legal Merit of Claims: The Success of Arbitration Rule 41(5) Chapter
- The Asia-Pacific Investigations Review 2018 - Singapore Chapter
- The Investment Treaty Arbitration Review, 2nd Edition - Objections of Manifest Lack of Legal Merit Claims Chapter
- The Asia-Pacific Investigations Review 2017 - Singapore Chapter
- ICSID Review - The Use of Emergency Arbitrators in Investment Treaty Arbitration Chapter
- The Investment Treaty Arbitration Review, 1st Edition - Objections of Manifest Lack of Legal Merit Claims Chapter
- The Asia-Pacific Investigations Review 2016 - Singapore Chapter
- The International Investigations Review, 5th Edition - Singapore Chapter
- Third-Party Funding: Snapshots from around the globe
- The Practice of Law