Irina Tymczyszyn

Senior Consultant

Irina is an English lawyer and a well-known international arbitration specialist. Over the last 20 years, Irina has acted as counsel and arbitrator in multiple international commercial arbitration proceedings seated around the world.

Irina has considerable experience in arbitration of international commercial cross-border disputes with a particular focus on energy and infrastructure, mining and construction, commodities, telecommunications and shareholder disputes. She has acted as counsel and/or sat as arbitrator in arbitrations held under the ICC, LCIA, SCC, UNCITRAL, ICSID and other institutional rules which have been seated in a variety of jurisdictions including London, Geneva, Stockholm, Paris, Frankfurt and Abu Dhabi. Irina has been listed in the 2018, 2019, 2020 and 2021 editions of “Who’s Who Legal: Arbitration”.

Before joining Gresham Legal, Irina practised international arbitration and commercial litigation for nearly 20 years at various leading UK, US and global firms. Notably, Irina was a partner at Norton Rose Fulbright for 2 years and spent 8 years as partner and Head of the CIS Group at Bryan Cave.

Irina is fluent in English, Ukrainian and Russian, and has working knowledge of German, French and Polish.

Irina’s representative experience includes:

  • Acting for a Russian businessman in LCIA arbitration proceedings against an Eastern European Bank arising out of a breach of a settlement agreement.

  • Acting for a South African mining construction company in an ICC arbitration and two Swiss Chambers’ arbitrations in a dispute with a Russian mining company arising out of a contract for construction of a potash mine in Russia.

  • Acting for an investor in LCIA arbitration proceedings against a Russian company in an investment dispute over construction of a diamond mine in Angola.

  • Acting for a Jordanian investor in two related UNCITRAL arbitrations against an Indian company in a marine construction dispute.

  • Acting for a Canadian oil extraction company in an ICC arbitration against a large Russian oil conglomerate in a breach of consortium agreement dispute arising out of the Claimant’s investment into an oilfield in Kazakhstan.

  • Acting for a Brazilian oil extraction company in LCIA arbitration proceedings brought by an US oil extraction equipment supplier in an alleged breach of a teaming agreement dispute.

  • Acting for a Russian telecom company in LCIA arbitration proceedings and related English court proceedings against another large Russian telecom company in a breach of contract dispute arising out of sale of shares.

  • Acting for a Norwegian river cruises provider in an ad hoc (UNCITRAL Rules) arbitration against a US tour operator in a breach of charterparty dispute.

  • Acting for a large French media conglomerate in LCIA arbitration proceedings against a Polish telecom company in a breach of investment agreement dispute.

  • Acting for a large CIS metal company in LCIA arbitration proceedings and related English court proceedings against a large UK law firm in a professional negligence claim.

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