CMS represents international clients in domestic litigation, as well as advising both national and foreign clients in arbitration proceedings. The agricultural sector is a particular focal point, in addition to insolvency disputes. Sanctions advice is an increasingly active area, along with post-conflict reconstruction initiatives. Olga Shenk heads the dispute and compliance practice in the CMNO office, representing clients in commercial and investment arbitration proceedings and white-collar crime cases. Head of the RRH office Maria Orlyk advises on disputes across the oil and gas, automotive, chemical and fashion industries, supported by Diana Valyeyeva. Representing international companies, Oleksandr Protsiuk is active in tax and commercial disputes. Sofiia Kostomarova focuses on international investment and commercial arbitration proceedings.

Legal 500 Editorial commentary

Testimonials

Collated independently by Legal 500 research team.

  • ‘The team at this firm stands out for its incredible speed and efficiency, delivering results in the shortest possible time. They find solutions even for the most complex legal challenges, making it feel like nothing is impossible for them. Their ability to quickly adapt and offer innovative approaches makes them invaluable partners.’

  • ‘Vitaliy Radchenko, Olga Shenk.’

  • ‘Vitaliy Radchenko as their energy law expert and Olga Shenk as dispute resolution partner worked in tandem on this assignment, we were very happy with their contribution. ’

  • ‘Vitaliy Radchenko is probably Ukraine's most experienced energy lawyer.’

  • ‘Very responsive, excellent teams, broadly specialised.’

  • ‘Maria Orlyk has outstanding credentials, an excellent network,  and is very organised.’

Work highlights

  • Successfully represented a European bank in the recognition of the multi-million-dollar claim under a credit facility governed by German law against a Ukrainian industrial corporation in bankruptcy proceedings.
  • Acted for an Italian gas company as the expert witness on Ukrainian law matters in an international commercial arbitration against a Ukrainian energy company, under the Arbitration Rules of the SCC Arbitration Institute.

Practice head

The lawyer(s) leading their teams.

Olga Shenk, Maria Orlyk

Other key lawyers

Diana Valyeyeva, Oleksandr Protsiuk, Sofiia Kostomarova, Roman Gerasymenko