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London

Founded in 2012, Signature Litigation has grown into one of London’s pre-eminent specialist dispute resolution practices. From the outset, we set out to do things differently: a conflict-free, disputes-only platform designed to give clients the undivided focus and strategic agility that complex, high-stakes matters demand.

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Gibraltar

Established in 2017, Signature Litigation's Gibraltar office was founded to address growing demand for specialist expertise in commercial litigation and private wealth disputes on the Rock.

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Paris

Signature Litigation AARPI houses one of France’s most enviable product liability practices, with the team also handling commercial and corporate litigation, insurance and reinsurance, toxic tort and ESG, civil fraud and asset tracing, international arbitration, administrative and public law.

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Frankfurt

Frankfurt has emerged as one of Europe's foremost financial and commercial centres and, increasingly, as a bridge between European and Asian markets. With that growth comes an increasing demand for sophisticated dispute resolution. Signature Litigation established its Frankfurt office to meet this need, bringing our conflict-free, disputes-only platform to the German market.

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Tsegaye Laurendeau

Partner

In his own words:
In his own words:

“Tsegaye Laurendeau has a strong commercial approach to dispute resolution, which is very appealing to clients. He understands issues very quickly, is pragmatic, and a great team player.”

– The Legal 500 UK 2026

“Tsegaye Laurendeau has extensive international arbitration expertise; and has worked on large mandates over the years, building a strong name for himself in the arbitration market.”

– The Legal 500 UK 2026

Tsegaye is a Partner at Signature’s London office specialising in international arbitration.

With over 15 years’ experience in international arbitrations as counsel, Tsegaye represents international corporates, States and State-owned entities in commercial and investment treaty arbitrations conducted pursuant to the arbitration rules of many of the major arbitration institutions including the LCIA, ICC, ICSID, CRCICA, HKIAC and UNCITRAL.

Tsegaye has a particular focus in disputes involving complex corporate structures, financial products, accounting and tax issues and matters relating to quantum. Tsegaye’s has significant experience in disputes concerning joint ventures, M&A, investment funds and international financing disputes. His expertise primarily lies in the energy sector (oil & gas, nuclear), commodities, infrastructure, mining, technology and telecoms industries.

Tsegaye is particularly known for his expertise in Africa although his experience over the years spans many geographical regions including MENA, South America and Eastern Europe (former Soviet Bloc).

While Tsegaye’s practice focuses exclusively on international arbitration, he began his career in the Project Finance group of a magic circle firm, acting for financial institutions and international corporates in relation to the financing and development of large energy and infrastructure projects in the MENA region and Sub-Saharan Africa.

In July 2024, Tsegaye was elected as a member of the International Chamber of Commerce (ICC) Court for the 2024-2027 mandate. This prestigious role creates an important opportunity to collaborate with top professionals in the field of international arbitration and to contribute to the global business community alongside the ICC, one of the world’s leading arbitration institutions. Read more about Tsegaye’s appointment here.

In January 2024, Tsegaye was appointed to the P.R.I.M.E. Finance Panel of experts/arbitrators. P.R.I.M.E. Finance stands for the Panel of Recognised International Market Experts in Finance, an innovative international collaborative organisation, which was launched in 2012 with the aim of assisting with the resolution of disputes concerning complex financial products and which has quickly gained recognition in the space of international arbitration. P.R.I.M.E. Finance launched bespoke Arbitration Rules for a wide range of financial disputes in 2022.

Tsegaye’s international arbitration practice increasingly includes appointments as arbitrator, both as sole and co-arbitrator.

Tsegaye is ranked in The Legal 500 UK 2026 Guide as a ‘Next Generation Partner’ for international arbitration, and is described as “truly outstanding”, with one commentator praising his “ability to analyse the key drivers in a disputes situation quickly and devise and implement an effective strategy.”

A previous Guide called him “a litigation powerhouse”, who is “commercial in his approach to problem solving” and “open and honest regarding the prospects of success in any case.”

Tsegaye also features in The Legal 500 International Arbitration Powerlist UK, which showcases the UK’s leading arbitration practitioners.

Tsegaye is Recommended for arbitration in the Lexology Index. Peers and clients say he is “one of the best arbitration lawyers of his generation.”

Prior to joining Signature Litigation, Tsegaye was a partner at international arbitration boutique law firm Gaillard Banifatemi Shelbaya Disputes, and before that he was a member of Shearman & Sterling’s international arbitration group where he practiced for over ten years, first in Paris, then in London from 2015.

Tsegaye is admitted as a solicitor of the Supreme Court of England and Wales and to the Paris Bar.

He is a fluent English speaker and a native speaker of Amharic and French. He is also conversant in Spanish.

Professional affiliations

  • Member of the International Chamber of Commerce (ICC) Court for the 2024-2027 mandate
  • Member of the ICC Commission on Arbitration and ADR
  • P.R.I.M.E. Finance Panel of Experts
  • Panel of Arbitrators, Hong Kong International Arbitration Centre (HKIAC)
  • International Panel of Arbitrators, Kigali International Arbitration Centre (KIAC)
  • Court and Arbitration Committee of the Lagos Court of Arbitration (LCA)
  • African Arbitration Association
  • Founding member, AfricArb

International commercial arbitration

  • Representing CA Investment (Brazil), the Brazilian subsidiary of Paper Excellence, in a much-publicised USD 3bn dispute against Brazil’s second largest business group, J&F Investimentos, concerning the acquisition of Eldorado Brasil, a pulp production major. The dispute spanned 6 years, involved four arbitrations and multiple court proceedings in several jurisdictions. We played an instrumental role in securing a global settlement between the parties.
  • Representing a major European retail group in a USD 2.5bn ICC claim against its South American JV partner concerning breaches of a shareholders’ agreement relating to the issues of control in their joint venture company.
  • Representing an international mining company as the Respondent in a USD 2bn ICC arbitration dispute against a European energy trading company under a coal supply agreement concerning delivery obligation and broader JV issues relating to the financing of the project.
  • Representing a North American heavy equipment supplier and contractor in a USD 2bn dispute under the Rules of Arbitration Foundation of South Africa (AFSA) against a national energy company arising out of two major electricity infrastructure projects and involving issues of delays, disruption and defects.
  • Representing a PE fund in ICC and HKIAC arbitrations and related court proceedings in multiple jurisdictions initiated by investors in relation to the transfer of assets worth over USD 1.5bn managed by the fund.
  • Representing a group of shareholders against two shareholders in the same company in an ICC dispute with a total value exceeding USD 1bn concerning the interpretation of a put option provision and underlying accounting standards in connection with the acquisition of shares in the company.
  • Representing an entity within a large gambling group in a USD 600m ICC dispute arising out of a joint-venture partnership with a listed software group in relation to a project in LATAM.
  • Representing an ultra-high-net-worth individual in separate ICC and Swiss arbitration proceedings with the total value of in excess of USD 500m concerning fraudulent mismanagement of an offshore trust structure – a Panamanian Foundation.
  • Representing a North American information management company in a USD 500m dispute under SIAC Rules in Singapore against a South Asian private equity firm in relation to a jointly owned data management company in India. The dispute concerned the valuation of the company prior to the exercise by the claimant of its option to acquire the entirety of the minority shareholder’s interest in the company and involved the interpretation of IFRS and GAAP standards in financial statements.
  • Representing a Middle Eastern fund as the Respondent in a USD 500m ICC arbitration dispute seated in Paris commenced by a leading football club. This dispute arose from a sports sponsorship agreement.
  • Representing the Respondent in an ICC dispute valued at no less than USD 200m with an international mining company concerning enforcement under debt security agreements.
  • Representing a major European company in a shareholders’ dispute under ICC Rules with a total value exceeding USD 100m in relation to a profit-sharing arrangement which concerned a nuclear power plant in the PRC.
  • Representing a LATAM company in several LMAA disputes valued at USD 75m against its JV partner concerning time-charter agreements relating to the provision of services for off-shore oil rigs.
  • Representing an African telecom infrastructure company in USD 50mn ICC dispute with an African telecom provide arising out of an infrastructure license agreement and involving issues relating to mobile tower installation requirements and license payments.
  • Representing an international accounting firm in a high-stakes dispute under the Rules of Arbitration of the Vietnam International Arbitration Centre (VIAC) against a Southeast Asian conglomerate arising out of its audit and involving International Standards on Auditing and accounting issues.

International arbitration involving states and state-owned companies

  • Representing a European FTSE 250 exploration and development company in a USD 5.5bn UNCITRAL claim against a South Asian country concerning violation of FET standards and compromise of the principle of legal certainty arising out of the adoption of adverse retrospective income tax measures and seizure of the investor’s shares and dividends.
  • Representing a country in the MENA region in an ICSID dispute with the total claim value in excess of USD 5bn in relation to an investment into the operation of a telecoms company in Algeria.
  • Representing a natural gas seller in a series of CRCICA arbitrations in Cairo and Madrid commenced by the buyer and owner of a liquefaction plant and arising out of a tolling agreement and a related long-term gas supply agreement with the total value of claims exceeding USD 4bn.
  • Representing two international construction contractors who were respondents in a USD 3.7bn ICC arbitration in London initiated by a Middle Eastern State-owned company. The dispute concerned the development of a world-class medical facility in the Middle East.
  • Representing a MENA State in defending a USD 500mn claim brought by a UAE construction company in ad hoc/UNCITRAL arbitration under the Organisation of the Islamic Conference Agreement relating to the termination of its investment in the host State and involving issues of expropriation and fair and equitable treatment.
  • Representing a global conglomerate engaged in the procurement and export of agricultural commodities with operations across Africa, in relation to a USD 400m investment treaty arbitration against an East African State and involving allegations of expropriation of the investor’s goods and other malfeasances.
  • Representing a Malaysian investor in connection with two large-scale mining projects in Poland in a USD 500m ICC investment treaty arbitration involving allegations of expropriation, breaches of the FET and FPS standards, and a breach of the obligation to encourage and create favourable conditions for foreign investors pursuant to the Malaysia-Poland Bilateral Investment Treaty.
  • Representing a group of investors in a large-scale mining project in Eastern Europe in a USD 220m UNCITRAL investment treaty arbitration claim against the host State involving allegations of expropriation and breaches of the FET standard
  • Representing an international logistics company in a USD 150mn ICC dispute against the Port Authority of an African State arising out of a concession agreement related to the management and operation of a container terminal and involving contractual exclusivity provisions.

Selected experience as arbitrator

  • Sole arbitrator in two related arbitrations in a dispute arising out of an agreement for the provision of internet telecommunication infrastructure services in West Africa. ICC Rules, English law applies, arbitration seated in London.
  • Co-arbitrator in an arbitration arising from an intelligence gathering contract in relation to a port container terminal facility construction project in Egypt. LCIA Rules, English law applies, and the seat of the arbitration is London.
  • Sole arbitrator in a dispute relating to fees due under a contract for the provision of payment technology services by the Claimant to the Respondent. LCIA Rules, English law applies, and the seat of the arbitration is London.
  • Co-arbitrator in a dispute arising from a Share Purchase Agreement in relation to oil and gas assets located in Kenya. LCIA Rules, English law applies, arbitration is seated in Nairobi, Kenya.
  • Co-arbitrator in an ICC arbitration between a military equipment and services company and an African State. FDRE law applies, arbitration seated in Addis Ababa, Ethiopia.
  • Sole arbitrator in two related arbitrations in a dispute arising out of a loan agreement. LCIA Rules, English law applied, arbitration seated in London.
  • Co-arbitrator in a dispute between an American financial institution and an African state entity arising out of an international money transfer agreement. LCIA Rules, English law applied, arbitration seated in London.

Selected experience in project finance. Advising:

  • Guinea Alumina Corporation (a joint venture between Mubadala Development Company and Dubai Aluminium) on the USD 1.6bn development and financing of a bauxite mine, alumina refinery and related infrastructure in the Republic of Guinea.
  • AES Corp. in relation to the USD 500m refinancing of a syndicated multilateral credit facility for a long-term capital investment program relating to power projects in Cameroon.
  • A syndicate of multilateral lenders in relation to the financing of the Derba Midroc cement plant in Ethiopia.
  • Vergnet on the development and financing of the 120 MW wind farm in Ashegoda, Ethiopia.
  • Sponsors JGC Corporation and SOGEX Oman in their successful O&M bid for the Terga and Koudiet (Algeria) 2400MW gas-fired power plants.
  • Mubadala Development Company (investment arm of the Abu Dhabi government in the UAE) with respect to its acquisition of a stake in a portfolio of water desalination projects and sewerage concessions throughout the Middle East and North Africa.

Chapter: Expert Forum: Sub-Saharan African ArbitrationCorporate Disputes Magazine – October-December Issue, 2026

Practical Session: Oral Advocacy SkillsBrunel University of London Summer Programme on International Arbitration 2026 – 10 September 2026

Chapter: Private Capital, Sovereign Debt and Arbitration in AfricaJus Mundi Arbitration Review – Volume 3, Issue 2, 2026

Panel Discussion: LIDW26 – When potential meets dispute: valuing damages in early-stage ventures and projects – London International Disputes Week – 3 June 2026

Membership: Member of the ICC International Court of Arbitration: as a Court member, Tsegaye’s role involves, inter alia, scrutinising draft awards, appointing arbitrators or deciding arbitrator challenges. Given his background and knowledge in project finance, Tsegaye is often called upon when complex issues arise in relation to corporate structures, financing instruments or quantum calculation.

Speaking engagement: Hosting events on damages in international arbitration in the context of Paris Arbitration Week in 2023, 2024 and 2025

Speaking engagement: Delivered annual training on international arbitration to private practitioners at Université Catholique de l’Afrique de l’Ouest in 2023, 2024 and 2025 (Abidjan, Ivory Coast)

Speaking engagement: 45th ICC Institute Annual Conference on Monetary Remedies in International Arbitration, spoke on remedies and risks under long term arrangements – 14 November 2025 (Paris, France)

Speaking engagement: IBA Cairo Roundtable on Uniform Privilege Guidelines in International Arbitration, participated in the discussion on the development of uniform guidelines of legal privilege/attorney secrecy in international arbitration – 17 October 2025 (Cairo, Egypt)

Speaking engagement: Jus Africa Conference on the Protection of Extractive Investments in Conflict Zones, spoke on contractual safeguards for mining companies and producing States against conflict zone risks – 8-10 October 2025 (Kolwezi, Democratic Republic of Congo)

Article: A step in the wrong direction: Kenyan court sets aside costs award on public policy grounds – Global Arbitration Review – 2 October 2025

Speaking engagement: Al Tamimi & IAMC Dubai event, spoke on the assessment of damages in Arbitrations with States and State-Owned Entities in Asia and MENA – 11 November 2024 (Dubai, UAE)

Press Quote: Vestas and Fortum ‘lost significant amounts of money’ in arbitration – legal expert – Windpower Monthly – 18 October 2024

Speaking engagement: 5th AfAA Annual Conference, spoke on ESG in commercial international arbitration – 9-11 October 2024 (Douala, Cameroon)

Press Quote: Signature Litigation Partner Elected To ICC – Law360 – 5 July 2024

Speaking engagement: PCA & P.R.I.M.E. Finance event on Arbitration in Banking and Finance, spoke on the use of the updated P.R.I.M.E. Finance Arbitration Rules in financing disputes – 20 March 2024 (Paris, France)

Press Quote: Arbitrator jail sentence and ban raises questions in ‘highly unusual’ case – The Law Society Gazette – 19 January 2024

Speaking engagement: Biennial IBA African Regional Forum Conference, moderated a panel on the evolution of force majeure clauses in commercial contracts to address emerging global threats – 13-15 September 2023 (Kigali, Rwanda)

Speaking engagement: 7th ICC Africa Arbitration Conference, spoke on investment arbitration and natural resource development in Africa – 31 May-2 June 2023 (Lagos, Nigeria)

Article: Multijurisdictional dispute resolution in M&A transactionsFinancier Worldwide’s Managing and Resolving Commercial Disputes 2023 – 28 April 2023

Article: The Changing Landscape of Banking Activities in sub-Saharan Africa: What This Means for International ArbitrationThe Paris Journal of International Arbitration – November 2023

Press Quote: PAW2023: Keeping arbitration fit for purposeCommercial Dispute Resolution – 3 April 2023

Press Quote: Nigeria launches appeal of $11bn P&ID arbitration billAfrican Business Magazine – 25 January 2023

Press Quote: Quinn and Mishcon Do Battle in $11B Nigeria Damages Bill CaseLaw.com International – 24 January 2023

Press Quote: L’Éthiopie, nouvel eldorado des banquiers africains ? – Jeune Afrique – 5 December 2022

Press Quote: SIGNATURE LITIGATION—TSEGAYE LAURENDEAU – New Law Journal – 12 September 2022

Press Quote: Signature Litigation sees revenue growth slow to 1.4% this year after bumper 2021 –  The Global Legal Post – 7 September 2022

Press Quote: Slower growth at Signature Litigation but staff see increased profit share – Legal Business – 6 September 2022

Press Quote: Signature hires from GBS Disputes – Global Arbitration Review – 5 September 2022

Press Quote: Signature Litigation Posts £28M Revenue In Latest Results – Law360 – 5 September 2022

Press Quote: Signature move for international arbitration specialist – CDR News – 5 September 2022