Matthieu Gregoire

Acting for the Respondent in an ICC arbitration said to be worth over USD $500 million arising out of a tolling agreement relating to a liquified natural gas plant project in the Middle East.

Acting for the Claimants in Skubenko and others v North Macedonia, ICSID Case No. Arb/19/9, in a dispute over a copper mining complex in North Macedonia, under the Ukraine-North Macedonia BIT.

Acting for the Claimants in Al-Tuwairqi v Pakistan, a dispute over a steel manufacturing plant in Karachi, under the OIC Investment Treaty (under the UNCITRAL Rules).

Acting for a South Asian State in a claim brought by investors arising out of a renewable power plant project.

Acting for a Claimant in an LCIA Arbitration arising out of an energy project in an East African State (details not public).

Acting for the Respondent in an LCIA Arbitration arising out of a joint venture in a CIS State (details not public, led by Justin Fewick QC, Andrew Clutterbuck QC and Lucy Colter).  The arbitration is seated London under English law and involves jurisdiction issues, alleged minority oppression and questions of interpretation of the joint venture agreement.

Acting for the Respondent in an ICC Arbitration arising out of an infrastructure project in West Africa (details not public).

Acting as junior counsel for the First Claimant in the enforcement proceedings arising out of the Award in Micula & Others v Romania [2017] EWHC 31 (Comm) (led by Sir Alan Dashwood QC and Patrick Green QC).

Matthieu acted for PL Holdings, a Luxembourg company, which prevailed in its SCC arbitration against the Republic of Poland. The claim concerned the uncompensated expropriation of our client’s equity investment in a Polish bank, in violation of the Luxembourg-Poland BIT. In its recent Final Award, the tribunal ordered Poland to pay c. €176 million in damages and €3.5 million in costs.

Matthieu was part of the counsel team which successfully acted for PL Holdings, together with Fietta LLP (Stephen Fietta, Ashique Rahman, Laura Rees-Evans and Sarah Macrory), Linklaters (Matthew Weiniger QC, Ula Cartwright-Finch, Cezary Wisniewski and Alicja Zielinska-Eisen), and Sean Aughey.

Acting as junior counsel for a national telecommunications operator in a substantial ICC arbitration (foreign law).

Acting as sole counsel in an LCIA arbitration arising out of the sale of fuel alcohol (details not public).

Acting as sole counsel in an LCIA arbitration arising out of the transport of ethyl alcohol (details not public).

Acting for the Claimant in arbitration commenced under the ECT and governed by the SCC rules in the energy sector in relation to breaches by an Eastern European State of the ECT (details not public).

Acting for the claimants in City-State N.V. et al. v Ukraine, ICSID Case No. ARB/14/9, a dispute under a bilateral investment treaty in relation to various breaches of the treaty.

Acting as sole counsel in a two-week hearing for a Ukrainian company in a commercial arbitration pursuant to the ICC Rules in relation to a dispute under a contract in the telecommunications sector (details not public).

Advising a party in potential challenge proceedings following a bilateral investment treaty arbitration award (details not public).

Acting for the Respondent in Tethyan Copper Company Pty Limited v Islamic Republic of Pakistan, ICSID Case No. ARB/12/1, a dispute under a bilateral investment treaty, in relation to the refusal of a mining licence over very large-scale copper and gold deposits at Reko Diq, in Pakistan (led by Cherie Blair QC and Graham Dunning QC).

Advising a multinational company on enforcement proceedings in various jurisdictions following a successful £8 million ad hoc award (confidential).

Advised and acted for OJSC Tatneft in claim brought under the Russia-Ukraine BIT arising out of a raider takeover of Ukraine’s largest refinery, in which OJSC Tatneft was a shareholder (as an attorney ; applicable rules: UNCITRAL)

Advised a major German company on investment protections available under the Libya-Germany BIT following the destruction of its property in Libya (as an attorney; applicable rules: ICSID)

Advised and acted for a major multinational steel company on an €11 million construction dispute arising out of the construction of a steel factory in the Czech Republic (as an attorney, applicable rules: ICC)

Advised and acted for a major French oil refining company in €40 million dispute arising out of the closing down of an oil refinery in the South of France (as an attorney, applicable rules: ICC).

Advised and acted for a major Dutch company in relation to a dredging dispute in Nigeria (as an attorney, applicable rules: LCIA).

Acted as secretary to a three-member tribunal (at an attorney, applicable rules: ICC).

Matthieu advised the Bangladeshi government on reforming the Bangladesh Arbitration Act 2001. Assisted in developing a sustainability plan for the Bangladesh International Arbitration Centre (BIAC) (as a consultant for the World Bank).

Matthieu advised on the creation of the government-led Istanbul Arbitration Centre (as a consultant for the World Bank).

Matthieu advised on the revised  Commercial Court Rules relating to alternative dispute resolution (as a consultant for the World Bank).

Matthieu assisted in the drafting of the rules of the Financial and Commercial Court of Arbitration, aimed at developing arbitration in the banking sector in Vietnam. Assisted in creating the interpretative guidance on the Law of Commercial Arbitration, issued by the Vietnamese government to avoid undue court interference in the arbitral process (as a consultant for the World Bank).

Acting for Amjad Rihan, the successful claimant, in proceedings brought against EY entities (led by Ben Hubble QC) (one of The Lawyer’s Top 20 Cases of 2020).

Acting for the claimant in a Commercial Court claim arising out of an SPA of a paper business in Romania.

Acting for the defendants in a claim arising out of financing agreements for wind farm projects.

Acting for Aston Martin Works Limited in a claim arising out of the financing of a high-end car.

Successfully acting for a Bulgarian telecommunications company, Viva Telecom, in the Commercial Court in a claim brought by VTB Bank Plc involving allegations of fraud and conspiracy, in a claim said to be worth over £200 million (led by Graham Chapman QC).

Acting as junior to Justin Fenwick QC in civil fraud claim.

Acting for a Claimant in an LCIA Arbitration arising out of an energy project in an East African State (details not public).

Acting for the Respondent in an LCIA Arbitration arising out of a joint venture in a CIS State (details not public).

Acting as junior for Part 20 Defendant in a multi-million pound claim relating to a lithium battery fire on new a Boeing 787 Dreamliner at London Heathrow.

Acting as junior counsel for the First Claimant in the enforcement proceedings arising out of the Award in Micula & Others v Romania: [2017] EWHC 31 (Comm) (led by Sir Alan Dashwood QC and Patrick Green QC).

Acting as sole counsel for a Ukrainian company in a commercial arbitration pursuant to the ICC Rules in relation to a dispute under a contract in the telecommunications sector (details not public).

Acting as sole counsel in an LCIA arbitration arising out of the trasport ethyl (details not public).

Acting as sole counsel in an LCIA arbitration arising out of the sale of fuel alcohol (details not public).

Acting as junior counsel for a Defendant in Chevron Corporation v Amazonia Recovery Limited & others (Supreme Court, Gibraltar), complex proceedings concerning alleged commercial conspiracy arising from US$18 billion judgment in respect of environmental pollution in Ecuador with associated arbitration proceedings (the Chevron v Ecuador BIT proceedings) and proceedings in New York and elsewhere (led by Vernon Flynn QC (Essex Court Chambers), Patrick Green QC (Henderson Chambers) and Jonathan Adkin QC (Serle Court) and Henry Warwick).

Acting as junior counsel in a 6-week trial brought by the HSE against an aerospace company raising significant issues in relation to parent company liability (R v CAV) (led by Prashant Popat QC).

Acting for the Claimants in Skubenko and others v North Macedonia, ICSID Case No. Arb/19/9, in a dispute over a copper mining complex in North Macedonia, under the Ukraine-North Macedonia BIT.

Acting for the Claimants in Al-Tuwairqi v Pakistan, a dispute over a steel manufacturing plant in Karachi, under the OIC Investment Treaty (under the UNCITRAL Rules).

Acting for a South Asian State in a claim brought by investors arising out of a renewable power plant project.

Acting as junior counsel for the Lord Chancellor in the Court of Appeal in Anderson v Turning Point Eespro [2019] EWCA Civ 815, a civil procedure case giving rise to questions of public international law (led by Richard O’Brien).

Matthieu has advised a number of clients in the intra-EU BITs about the consequences of the CJEU’s Achmea decision.

Acting as junior counsel for the First Claimant in the enforcement proceedings arising out of the Award in Micula & Others v Romania [2017] EWHC 31 (Comm) (led by Sir Alan Dashwood QC and Patrick Green QC).

Matthieu acted for PL Holdings, a Luxembourg company, which prevailed in its SCC arbitration against the Republic of Poland. The claim concerned the uncompensated expropriation of our client’s equity investment in a Polish bank, in violation of the Luxembourg-Poland BIT. In its recent Final Award, the tribunal ordered Poland to pay c. €176 million in damages and €3.5 million in costs.

Matthieu was part of the counsel team which successfully acted for PL Holdings, together with Fietta LLP (Stephen Fietta, Ashique Rahman, Laura Rees-Evans and Sarah Macrory), Linklaters (Matthew Weiniger QC, Ula Cartwright-Finch, Cezary Wisniewski and Alicja Zielinska-Eisen), and Sean Aughey.

Acting as junior counsel for the intervening parties in R (Miller & others) v Secretary of State for Exiting the European Union [2016] EWHC 2768, and before the Supreme Court in R(Miller & others) v Secretary of State for Exiting the European Union [2017] UKSC 5 (led by Patrick Green QC and Henry Warwick).

Acting for the Claimant in arbitration commenced under the ECT and governed by the SCC rules in the energy sector in relation to breaches by an Eastern European State of the ECT (details not public).

Acting for the applicant in Fair Deal for Expats & others v Commission of the European Union (Case T-713/16): challenge in the General Court of the European Union under Article 263 TFEU in respect of measures preventing negotiations between representatives of the United Kingdom and the Commission pending notice under Article 50 TEU.

Acting for the claimants in City-State N.V. et al. v Ukraine, ICSID Case No. ARB/14/9, a dispute under a bilateral investment treaty in relation to various breaches of the treaty.

Advising a party in potential challenge proceedings following a bilateral investment treaty arbitration award (details not public).

Acting for the Respondent in Tethyan Copper Company Pty Limited v Islamic Republic of Pakistan, ICSID Case No. ARB/12/1, a dispute under a bilateral investment treaty, in relation to the refusal of a mining licence over very large-scale copper and gold deposits at Reko Diq, in Pakistan (led by Cherie Blair QC and Graham Dunning QC).

Advised and acted for OJSC Tatneft in claim brought under the Russia-Ukraine BIT arising out of a raider takeover of Ukraine’s largest refinery, in which OJSC Tatneft was a shareholder (as an attorney ; applicable rules: UNCITRAL)

Advised a major German company on investment protections available under the Libya-Germany BIT following the destruction of its property in Libya (as an attorney; applicable rules: ICSID).

Prepared pleadings for admitting third-party claims to the Extraordinary Chambers of the Courts of Cambodia (pro bono

Acting as junior counsel for the First Claimant in the enforcement proceedings arising out of the Award in Micula & Others v Romania [2017] EWHC 31 (Comm) (led by Sir Alan Dashwood QC and Patrick Green QC).

Acting as junior counsel for the intervening parties in before the Supreme Court in R(Miller & others) v Secretary of State for Exiting the European Union [2017] UKSC 5 (led by Patrick Green QC and Henry Warwick).

Acting as junior counsel for the intervening parties in the High Court in R (Miller & others) v Secretary of State for Exiting the European Union [2016] EWHC 2768 (led by Patrick Green QC and Henry Warwick).

Acting for the applicant in Fair Deal for Expats & others v Commission of the European Union (Case T-713/16): challenge in the General Court of the European Union under Article 263 TFEU in respect of measures preventing negotiations between representatives of the United Kingdom and the Commission pending notice under Article 50 TEU.

Acting as a junior to Richard Liddell in a construction adjudication.

Acting for an employer in a construction claim arising out of a project in the Middle East (details confidential).

Advised and acted for a major multinational steel company on an €11 million construction dispute arising out of the construction of a steel factory in the Czech Republic (as an attorney, applicable rules: ICC)

Acting for the Respondent in an ICC Arbitration arising out of an infrastructure project in West Africa (details not public).

Assisting Ben Hubble QC in a multi-party claim against financial advisors.

Assisting George Spalton in a claim against IFAs.

Assisting Graeme McPherson QC in a claim against a solicitor.

Advising insurers in a claim against solicitors in a conveyancy.