Arbitration

Cross-border disputes are complex. To prevent and resolve these disputes efficiently, you need a trusted partner with deep industry sector knowledge and comprehensive know-how of arbitration and other dispute resolution mechanisms.

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We get you back to business by providing practical, cost-effective, and timely solutions to your global disputes. We provide tactical strategies and insights that are tailored to your unique business, culture, and goals.

As a recognized arbitration powerhouse for both commercial and investment arbitrations, we are the firm of choice for the largest global businesses and governments. Our strategically-focused, multilingual, and multicultural team works across continents to help you avoid, navigate and resolve disputes in every corner of the globe. Closely cooperating across practice areas within our leading industry sector groups, we offer deep industry knowledge and extensive experience in various industries, including energy, mining, life sciences, financial services, infrastructure, aerospace and defence, automotive, telecoms and technology.

Seasoned lawyers with commercial and investment arbitration know-how

We’ve been on both sides of a dispute - as advocates and as arbitrators. Our world-class team has extensive experience presenting cases before all leading arbitral institutions and arbitrators. We can effectively guide you through every stage of the arbitration process, from pre-arbitral assessments to post-award enforcement proceedings.

Investment Arbitration

Construction and Engineering Disputes

Construction and Engineering

Public International Law

Global Asset Recovery and Enforcement

Our global, multicultural and multilingual International Commercial Arbitration team brings strong cross-border experience across various industry sectors to help you avoid and resolve disputes. Our team regularly handles cases before all leading arbitral institutions and arbitrators.

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Our world-class Investment Arbitration team offers multijurisdictional capabilities, representing both investors and sovereign states in complex, high-stakes disputes under bilateral and multilateral treaties. With a proven track record before all leading arbitral institutions, we guide clients through every stage of the arbitration process, safeguarding their investments and advancing their commercial strategies.

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Our team has an in-depth understanding of the construction and engineering sector across the world. Clients instruct us to represent them on some of their most challenging projects from risk management through to formal disputes resolution.

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Our global team has an exceptional understanding of the construction and engineering industry. We assist clients through all construction phases, helping them manage costs and delay by addressing issues early to avoid disputes where possible. If disputes do escalate, we provide outstanding arbitration skills to deliver favorable outcomes.

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In a world of escalating geopolitical tension, public international law provides a vital framework for resolving disputes. Our global team - headquartered in Washington, D.C., London, and Paris – has an exceptional record in international trade, investment treaty, and commercial disputes. Whether you are an international investor, a state or a state-owned entity, we can help you navigate the most complex and precedent-setting cases.

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From asset freezing and recovery, to judgment enforcement and collection, our experienced team is here to help you navigate the administrative, legislative, and judicial processes. Over the last 30 years, we have handled some of the highest-profile and highest-value cases in the market. We work as one seamless team alongside world-class investigations and white collar, insolvency, and banking litigation practices to ensure your best interests are served across borders and forums.

Key contacts

Oliver (Ollie) J. Armas

Partner

Oliver (Ollie) J. Armas

Partner

New York

Kieron O'Callaghan

Partner

Kieron O'Callaghan

Partner

London

Maria Eugenia Ramirez

Partner

Maria Eugenia Ramirez

Partner

Miami

Dr. Inken Knief

Partner

Dr. Inken Knief

Partner

Munich

Byron Phillips

Partner

Byron Phillips

Partner

Hong Kong

Meet the International Arbitration team

Representative experience

Successfully represented one of the world's leading power companies in an ICC US$200 million arbitration associated with the construction of a hydroelectric project.

Representing the world’s largest turbine supplier in arbitration and bankruptcy proceedings relating to a US$2 billion power generation facility in the United States.

Advising a leading mining company on two parallel UNCITRAL arbitrations against a multinational mining company in relation to the non-performance of coal supply contracts worth in excess of US$2billion.

Advised a major Indonesian energy company regarding the price review provisions in several multimillion-dollar contracts for the supply of LNG.

Represented an international energy company in a dispute brought by the Luxembourg entity of a major Korean company relating to the conversion of a coal power plant into a biomass power plant culminating in an ICC arbitration seated in Paris.

Successfully obtained an award of jurisdiction and liability for a privately-owned energy company in ad hoc arbitration proceedings in London against National Iranian Oil Company for failure to supply pursuant to a long-term gas supply agreement.

Representing a prominent global technology company in a US$4 billion ICC arbitration seated in Mexico arising from a Master Service Agreement our client entered into with a large wireless telecommunications company for the provision of technology services.

Representing a telecom giant in a SIAC arbitration against a supplier of smart phones.

Representing a leading aerospace company in a multimillion-euros supply chain dispute against a US supplier (ICC).

Advised a Swedish-based oil company in offshore production in an ICC arbitration regarding its withdrawal from Production Sharing Agreements relating to two Angolan offshore oil blocks and a related Joint Operating Agreement dispute with the operator.

Advising a leading oil and gas company in a force majeure dispute arising out of a series of contracts to swap volumes of liquefied natural gas in the United States and Asia.

Successfully defended the Turkish subsidiary of an oil and gas major in an ICC arbitration arising out of the termination of a gas supply contract and in which claimant's claim for damages were in excess of USD 130M.

Successfully represented one of the largest state-owned banks in the CIS region in four separate LCIA arbitration and national court proceedings regarding various claims of USD500million in relation to alleged breaches of loan facility, joint venture, and option agreements.

Successfully represented a global medical device manufacturer, in a NY-seated ICC arbitration arising from a post-M&A dispute in relation to a multimillion dollars claim for failure to use Commercially Reasonable Efforts to promote, market, distribute, and sell an acquired suite of products.

Representing a major pharmaceutical company in a London-seated ICC arbitration commenced by two drug manufacturers, and relating to alleged breaches of a License Agreement, including the right to commercialise and develop a drug in Japan.

Achieved a victory for a medical device manufacturer in an ICC arbitration relating to a dispute regarding alleged breaches of multiple distribution agreements for an implant used to treat heart failure.

Successfully represented the Republic of Colombia in a high-stakes investment arbitration initiated by Neustar Inc. and .CO Internet S.A.S. relating to the operation of Colombia’s domain name “.co”, involving financial claims exceeding USD 350 million.

Acting for a German investor in an ICSID arbitration against the People’s Democratic Republic of Algeria under a Bilateral Investment Treaty.

Representing a multinational engineering and construction company in a US$340m UNCITRAL arbitration related to the alleged breach of a project in Latin America.

Advising a Swiss fertilizer producer on the assignment or novation of an underlying license agreement.

Awards and recognitions

GAR 30

Global Arbitration Review

2010-2025

Band 1: Arbitration

Chambers Latin America

2026

Tier 2 & Client Satisfaction Accolade: International Arbitration

Legal 500

2025

Band 3: Global Market Leaders - Arbitration (International)

Chambers Global

2023

Spotlight: International Arbitration (Latin America-wide)

Chambers USA

2025

Band 1: Dispute Resolution: Arbitration

Chambers Latin America, Mexico

2025

Band 3: Arbitration

Chambers Germany

2025

Band 3: International Arbitration

Chambers France 2025

Band 3: Construction: International Arbitration

Chambers UK

2024

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Arbitration

Cross-border disputes are complex. To prevent and resolve these disputes efficiently, you need a trusted partner with deep industry sector knowledge and comprehensive know-how of arbitration and other dispute resolution mechanisms.

We get you back to business by providing practical, cost-effective, and timely solutions to your global disputes. We provide tactical strategies and insights that are tailored to your unique business, culture, and goals.

Explore our Capabilities

International Commercial Arbitration

Investment Arbitration

Construction and Engineering Disputes

Construction and Engineering

Public International Law

Global Asset Recovery and Enforcement

International Commercial Arbitration

Investment Arbitration

Construction and Engineering Disputes

Construction and Engineering

Public International Law

Global Asset Recovery and Enforcement

Key contacts

Representative experience

Awards and recognitions

GAR 30

Band 1: Arbitration

Tier 2 & Client Satisfaction Accolade: International Arbitration

Band 3: Global Market Leaders - Arbitration (International)

Spotlight: International Arbitration (Latin America-wide)

Band 1: Dispute Resolution: Arbitration

Band 3: Arbitration

Band 3: International Arbitration

Band 3: Construction: International Arbitration

Navigate change with our latest insights

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New UAE Civil Code: what the 1 June 2026 transition means for existing contracts

Turning Crisis into Strategy: Contracts, projects and disputes at a global chokepoint

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