Sophie Lamb KC is an internationally renowned leading counsel who provides strategic leadership and powerful advocacy in bet-the-company litigation and international arbitration matters.

A trusted advisor to boards of public companies, sovereign nations, private equity houses, and participants in the energy and technology sectors, she is consistently recognized among industry’s global elite for her work in some of the most significant and topical cases of the moment. Her mandates, including in the UK Supreme Court, have featured in The Lawyer’s top 20 cases of the year and she has featured on their list of the UK’s most influential and inspirational lawyers for her successes “in billion dollar, high profile, politically sensitive and often market-shaping arbitration cases and related court trials.”

Sophie is a “go-to-advocate” who draws on an exceptionally diverse international case load which extends across the full range of significant corporate and commercial arrangements, international investment law, public law class action / parent company litigation, and climate litigation. She is a recognized leader in the field of international arbitration and public international law and has conducted cases under all of the principal arbitration rules including the UNCITRAL, LCIA, ICC, ICSID, HKIAC, SIAC, AAA-ICDR, and Swiss Rules.

Sophie is a Bencher of Gray’s Inn and a Governor of the London Academy of Excellence, a school focused on eliminating educational disadvantage. She has previously served as Global Co-Chair of Latham’s International Arbitration Practice and was the UK’s representative on the ICC Court of Arbitration until 2022.

Sophie’s experience includes advising:

Commercial Arbitration

  • Successful defense of a leading global private equity house in a US$700 million SIAC arbitration concerning a TMT infrastructure investment in Southeast Asia
  • Successful defense of one of Asia’s largest and most diversified conglomerates in an ICC arbitration concerning regulatory and antitrust clearance obligations in a US$2 billion M&A deal which lapsed during the global pandemic
  • A global technology investor in an ICC arbitration concerning shareholder and put-option rights in a multi-billion dollar food delivery venture in Latin America 
  • Pharmaceuticals, medical devices, and life sciences in a range of joint development and commercialization disputes
  • A leading mining company on a very high-value shareholder rights and environmental dispute arising from projects in Latin America

Investment Treaty Arbitration

  • Mason Capital in its successful investment treaty claim against the Republic of Korea under the KORUS following the exposure of corruption involving South Korean political and business leaders
  • Investors in a Turkish gold mine whose multi-billion dollar interests were expropriated
  • A sovereign party in an investor-state dispute concerning a bank rescue program
  • Investors in an investment treaty arbitration related to the development of an eco-tourism resort in Mauritius

Litigation

  • Royal Dutch Shell and Shell Petroleum Development Company in landmark ESG class action and parent company defense work in the UK Supreme Court
  • Energy majors in climate change litigation, including in judicial review proceedings

Energy

  • Sophie’s experience extends across the full range of significant corporate and commercial arrangements including long-term supply relationships, costs recovery schemes, tax stabilization clauses, gas pipeline and consortium issues, hardship/fairness clauses and price re-openers, M&A transactions including earn-out provisions, joint venture and shareholder agreements, JOAs, pre-emption rights / ROFRs, warranty/indemnity claims, non-compete clauses, technology licensing and IP rights, environmental disputes, and climate litigation
  • Representing national oil companies and sovereign nations in cases of strategic significance
  • Investment disputes: counselled investors and sovereigns in numerous investment disputes involving investment agreements, production sharing or concession agreements, double taxation treaties and domestic anti-avoidance laws, stabilization clauses, national investment laws and mining codes, bilateral investment treaties, and multilateral treaties

Bar Qualification

  • England and Wales (Solicitor)
  • England and Wales (Solicitor-Advocate)

Education

  • Bar Exam/Admission, Inns of Court School of Law, London, 1998
  • LL.M., London School of Economics, 1997
  • LL.B., University of Manchester, 1996
  • LL.B., Université de Bourgogne, 1996