Jenner & Block


Mr. Olasunkanmi’s recent representations include the following:

  • Representing a sovereign state in ICC and ICSID arbitrations concerning the mining industry.
  • Providing training and advice to a sovereign state concerning matters of public international law and international investment arbitration disputes.
  • Acting in multi-jurisdictional enforcement proceedings in respect of two LCIA arbitration awards worth over $500 million.
  • Advising a charity on constitutional litigation in connection with civil liberties.
  • Acting for a large infrastructure group and investment fund in Judicial Review proceedings relating to revenue streams of renewable energy assets.
  • Advising a global technology and transportation network company on matters relating to the use of its technologies and its interactions with government regulators in different markets worldwide.

Prior to joining Jenner & Block, Mr. Olasunkanmi’s representative matters included the following:

  • Acted for a European investor in UNCITRAL arbitration against the Republic of India concerning the purported annulment of an agreement for space segment capacity on two satellites.
  • Advised an international oil major on its rights and obligations under both contractual and investment treaty mechanisms governing its investment in several oil exploration blocks in Angola.
  • Represented a global supermarket in connection with SFO and FCA investigations, and accompanying shareholder civil class actions.
  • Advised a global oil company in respect of parent company liability for human rights breaches and environmental damage caused by its subsidiaries.
  • Acted for an international oilfield company on whistleblowing allegations and a subsequent SFO investigation in respect of alleged bribery, corruption and money laundering.
  • Advised a global auction house on a private treaty sale dispute over a forgery of an Italian Old Master painting.
  • Acted for a multinational vehicle manufacturer in regulatory, criminal and UK High Court group litigation actions, in respect of alleged misrepresentations and NOx emissions.
  • Acted for a global professional services firm in connection with a regulatory investigation in Eastern Europe and public allegations of fraud.
  • Advised a major sports retailer on defending a High Court claim for breach of contract that was brought by former and current workers who were party to zero hours contracts.
  • Defended a global investment bank in Employment Tribunal proceedings concerning alleged unfair dismissal of a former employee involved in unusual trading activity.

Jenner & Block London LLP is a limited liability partnership established under the laws of the state of Delaware, USA and is authorised and regulated by the Solicitors Regulation Authority with SRA number 615729. Jenner & Block London LLP is affiliated with Jenner & Block LLP, which operates Jenner & Block’s offices in the United States.