Investment Treaty Arbitration
Allen & Overy has one of the world’s leading International Arbitration practices and a long track record of achieving successful outcomes for our clients in high-value, complex disputes.
We are recognised as being innovators in this field and as having particular expertise in relation to disputes arising under the Energy Charter Treaty (ECT). Our experience includes bringing the very first arbitration under the ECT, as well as the first collective claim under the ECT.
News & insights
Publications: 12 MAY 2020
Further to the decision of the Court of Justice of the European Union (the Court) in Case C-284/16 Slowakische Republic v Achmea BV on 6 March 2018 (previously reported on here) (Achmea), 23 EU Member…Read more
Publications: 25 FEBRUARY 2020
The High Court rejected an application by the Republic of Korea to set aside an investment arbitration award under s67 Arbitration Act 1996. In deciding that the arbitrators had substantive…Read more
Publications: 27 NOVEMBER 2019
More favourable treatment seeks to avoid the initiation of new arbitration proceedings and to terminate existing onesRead more
Publications: 14 AUGUST 2019
One should not underestimate the positive effect of foreign direct investment on a country’s growth and development and the importance of creating an investor-friendly environment in uncertain…Read more
A brief look at topical issues in contract law
Highly regarded for its stellar track record in representing sovereign states and corporates in high-value investment treaty disputes. Considerable experience carrying out its own advocacy before courts and tribunals. Also adept at handling a number of other public international law matters, such as Energy Charter Treaty claims, WTO cases, sovereign immunity concerns and international treaty drafting and negotiation.
Chambers UK 2018, Public International Law
Prominent international team which maintains a respected arbitration practice. Has a wealth of experience acting for both claimants and respondents in investment treaty disputes… Commentators praise the firm, stating that "they undoubtedly have a fantastic practice," and describing the arbitration group as a "truly global practice.
Chambers Global 2018, International Arbitration
Representative examples of our recent work include acting for:
British Caribbean Bank Limited (BCB) and Dunkeld International Investment Limited
More than 25 international investors
The Islamic Republic of Pakistan
- Two related claims, brought under the UNCITRAL Rules, arising from alleged interference in gas import operations at a terminal at the country’s second-biggest port. After ten days of hearings at which we did all the advocacy for our client, the Tribunal dismissed the nearly USD600m claims in their entirety and ordered the claimants to pay nearly 90% of Pakistan’s costs.
- A third ongoing investment treaty arbitration at ICSID, arising from the arrest by Pakistan of certain ships belonging to Turkish power-ship company Karkey Karadeniz, which values its claim at in excess of USD2 billion; and
- A fourth claim, brought by Australian mining company, Tethyan Copper Company, in relation to a mining concession in the Balochistan Province of Pakistan. This multi-billion dollar claim is also brought at ICSID.
Millicom International Cellular S.A
The Republic of Poland