People
Aloysius (Louie) Llamzon is a partner at K&S’s Washington, D.C. and New York offices and a member of its International Arbitration group. Dr. Llamzon represents private and sovereign clients in commercial, investment, and inter-State disputes. Having practiced in Asia, Europe, and the U.S., Louie is thoroughly familiar with civil and common law systems. He advocates before tribunals seated throughout the world, involving energy, infrastructure, financial, manufacturing, mining, and construction disputes. He also acts as arbitrator.
Dr. Llamzon was previously a corporate finance associate at a leading international law firm’s Hong Kong office, and an associate at a large firm in Manila. He is admitted in the Philippines, New York and D.C. Louie was also a Senior Legal Counsel at the Permanent Court of Arbitration, The Hague. There, he was Registrar and Tribunal Secretary in inter-State, treaty, and contract arbitrations involving States. His public international law experience includes disputes involving land and maritime boundaries, treaty interpretation, the environment, and transnational pipelines.
Louie holds J.S.D. and LL.M. degrees from Yale Law School, and A.B. and J.D. degrees from Ateneo de Manila University. He publishes widely and is a research professor and former lecturer at law schools in Manila and The Hague. His book “Corruption in International Investment Arbitration” (Oxford, 2014), is the leading treatise in the subject. His article “Investor Wrongdoing in Investment Arbitration” won the 2017 Smit-Lowenfeld Prize. He is a frequent speaker, including at the biennial ICCA Congress and the annual meetings of ASIL and the ICC Institute of World Business Law. He is a member of ASIL’s Executive Council.
Louie has been recognized annually in Who’s Who Legal Future Leaders – Arbitration since 2017, which has described him as a “star”, “an expert in international corruption matters relating to disputes,” “a top emerging name in the arbitration space” who “possesses ‘a rare combination of strong theoretical and academic knowledge with top lawyering and advocacy skills”, with a “fantastic Asia practice.”
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Book:
Reviews include: (i) Judge Joan Donoghue, The Corruption Trump in Investment Arbitration, 30 ICSID Review 756-61 (2015); (ii) Stanimir Alexandrov, Review of “Corruption in International Investment Arbitration by Aloysius P. Llamzon”, 109 American Journal of International Law 702-07 (2015)
Articles and Book Chapters include (in chronological order):
Select Speaking Engagements (chronological)
J.S.D., Yale Law School
LL.M., Yale Law School
J.D., Ateneo de Manila University
A.B. Economics, Ateneo de Manila University
District of Columbia
Hong Kong Registered Foreign Lawyer
New York
Phillippines
American Society of International Law
Integrated Bar of the Philippines
International Chamber of Commerce Young Arbitrators Forum (ICC YAF)
International Council for Commercial Arbitration; Young ICCA
Filipino
Aloysius Llamzon to Speak at the New York Arbitration Week Event
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September 16, 2025
K&S represents Türkiye in a $1B dispute with Alamos Gold that has settled
September 16, 2025
K&S counsels Vinci before the Superior Court of Justice of Lima, which recognized an award that upheld the company’s $1.5B concession for a toll road in Lima
September 5, 2025
K&S advises Vinci in an ICSID arbitration dispute against Peru over its alleged violation of a treaty
Representation of the Republic of Turkey in a multi-billion dollar inter-State ICC arbitration initiated by the Republic of Iraq in relation to a crude oil pipeline system between Iraq and Turkey
Representation of Shell Philippines Exploration B.V. in a multi-billion dollar ICSID arbitration against the Republic of the Philippines under the Netherlands-Philippines bilateral investment treaty in relation to the Malampaya gas-to-power project, the largest foreign investment in Philippine history
Representation of a major Spanish energy company in multi-billion dollar commercial and treaty arbitrations against the Arab Republic of Egypt and its State-owned company
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September 16, 2025
K&S represents Türkiye in a $1B dispute with Alamos Gold that has settled
September 16, 2025
K&S counsels Vinci before the Superior Court of Justice of Lima, which recognized an award that upheld the company’s $1.5B concession for a toll road in Lima
September 5, 2025
K&S advises Vinci in an ICSID arbitration dispute against Peru over its alleged violation of a treaty
Representation of the Republic of Turkey in a multi-billion dollar inter-State ICC arbitration initiated by the Republic of Iraq in relation to a crude oil pipeline system between Iraq and Turkey
Representation of Shell Philippines Exploration B.V. in a multi-billion dollar ICSID arbitration against the Republic of the Philippines under the Netherlands-Philippines bilateral investment treaty in relation to the Malampaya gas-to-power project, the largest foreign investment in Philippine history
Representation of a major Spanish energy company in multi-billion dollar commercial and treaty arbitrations against the Arab Republic of Egypt and its State-owned company
See more
September 16, 2025
K&S represents Türkiye in a $1B dispute with Alamos Gold that has settled
September 16, 2025
K&S counsels Vinci before the Superior Court of Justice of Lima, which recognized an award that upheld the company’s $1.5B concession for a toll road in Lima
September 5, 2025
K&S advises Vinci in an ICSID arbitration dispute against Peru over its alleged violation of a treaty
J.S.D., Yale Law School
LL.M., Yale Law School
J.D., Ateneo de Manila University
A.B. Economics, Ateneo de Manila University
District of Columbia
Hong Kong Registered Foreign Lawyer
New York
Phillippines
American Society of International Law
Integrated Bar of the Philippines
International Chamber of Commerce Young Arbitrators Forum (ICC YAF)
International Council for Commercial Arbitration; Young ICCA
Filipino
Aloysius Llamzon to Speak at the New York Arbitration Week Event
View all events