Practices

International arbitration

7

BLN USD

acting for Respondent in two complex investment arbitrations
Heading

About

Any dispute is a stress-test for your business. We are here to help you find the best strategy to overcome it and achieve the result you need. From initial analysis to enforcement of your arbitral award, our team will offer tailored solutions and high-quality service in disputes of any complexity.

At AVELLUM we combine our profound expertise in various practice areas with apt, efficient, and innovative management of procedure. Be it in M&A, construction, investment, sale of goods or other fields, we are ready to help at any stage of your dispute.

We are realistic when assessing the prospects of your case, client oriented when negotiating an amicable settlement, and unyielding when representing you before arbitral tribunals.

We understand financial contingencies the disputes create and ready to work with you to minimise expenditure for your business, be it through special fee arrangements or assistance with securing third-party funding.

We are ready to represent you in arbitrations under any arbitration rules. Our standing relations with leading law firms in different countries significantly broaden the geography of jurisdictions we are ready to assist our clients with.

Our attorneys are active participants of various professional communities (ICC, UAA, UBA, CIArb, IBA) and are always on top of recent trends, prospective legislative changes and most innovative solutions in the field.

Highlights:

  • more than 20 years of experience in international arbitration
  • more than 50 arbitral proceedings, including 10 investment treaty arbitrations
  • team of 10+ dedicated dispute resolution associates, recognised in international rankings (Chambers, Legal 500, Who is Who Legal/Lexology)
  • know-how under leading arbitration rules, including LCIA, ICC, SCC, UNCITRAL, ICSID, ICAС at UCСI, FOSFA, GAFTA
  • full-circle law firm with expertise in all practice areas and industries

We will assist you with:

  • representing you in arbitrations under any arbitration rules
  • providing expert opinions on Ukrainian law before arbitral tribunals and foreign courts
  • representing you before Ukrainian courts in any arbitration-related proceedings (interim measures in support of arbitration, recognition and enforcement, set aside)
  • representing you in mediation and other ADR proceedings
  • advising on arbitration clauses and assessing prospects of potential disputes
  • assisting with securing third party funding

Key experience

Our partners provided expert evidence on Ukrainian law in 8 investment treaty arbitrations

Arbitration under the IFTA Rules over a game development agreement in dispute

1

Mln USD

Counsel to a game development company

Recognition and enforcement of an LCIA award before Ukrainian court

Counsel to a global educational loans provider

ICC arbitration arising out of a bank guarantee

3

Mln EUR

Counsel to a major industrial manufacturer

Post-M&A dispute

60

Mln USD

Counsel to a major agricultural holding

FOSFA arbitration arising out of delivery of sunflower oil seeds

1

Mln EUR

Counsel to a major Ukrainian agricultural trader

Post-M&A dispute involving a potential arbitration and numerous court proceedings

8

Mln USD

Counsel to a major mining investor

Large multijurisdictional shareholders’ dispute, involving an LCIA arbitration with parallel court proceedings in Panama, Cyprus, Liechtenstein, Switzerland, Belize and the UK

20

Mln USD

Counsel to the private client

Successful in recognition of an LCIA Award before Ukrainian courts despite complicated arbitrability issues

Counsel to an international financial services provider

ICC Arbitration arising out of a security deed

3

Mln EUR

Counsel to an Asian manufacturing company

Award on agreed terms in an LCIA arbitration

2.2

Mln USD

Counsel to an international investment company

Complex shareholders dispute in LCIA arbitration

20

Mln USD

Counsel to a high-net-worth individual

Representation of the state of Ukraine in two investment arbitrations

7

Bln USD

Counsel to Respondent (Ukraine)

Extremely complex post-M&A LCIA arbitration

70

Mln USD

Counsel to a major Ukrainian agricultural company

Four disputes with a Hong Kong company before the ICAC at the Ukrainian Chamber of Commerce and Industry

4

Mln USD

Counsel to a major CEE-based mining machinery producer

Dispute with client’s international customer related to operation of sophisticated industrial equipment

18

Mln USD

Counsel to a major German industrial group

Show all key experience

Recognitions

Europe: Recommended in DR (Ukraine) since 2020

Global: Band 2 in DR (Ukraine)

Tier 1 in Dispute Resolution (Ukraine)

Clients About Us

Avellum team is brilliant in all respects and at all levels. They are versatile, extremely competent, work well as a team and can do almost any type of dispute.

Terrific cross-border capability and ability to advise on complex issues of international law.

Customer care, comprehensive knowledge of Ukrainian and international law, excellent proposals in difficult situation.

The go-to firm in Ukraine for complex international cases, both with respect to litigation and arbitration. Case handling is efficient and their response time is very fast. Very efficient, they know how to achieve the goals of the clients.

Kostiantyn Likarchuk is a renowned and very successful arbitration expert. He has recently won a high-profile LCIA case. His strategic skills are like no other. He responds immediately almost always.

Oleksii Maslov has a proactive and client-oriented approach, great attention to the details, very deep and broad knowledge. He possesses excellent communication skills.

Lexology

Show all testimonials

Related materials

Newsroom

AVELLUM is top-ranked by Chambers Europe 2025

AVELLUM is top-ranked by Chambers Europe 2025

Posted on March 24, 2025

News

AVELLUM is recommended in Chambers Global 2025

AVELLUM is recommended in Chambers Global 2025

Posted on February 20, 2025

News

AVELLUM promotes Oleksii Maslov to Partner, strengthening its Dispute Resolution practice

AVELLUM promotes Oleksii Maslov to Partner, strengthening its Dispute Resolution practice

Posted on January 17, 2025

Newsroom

Register of Damages for Ukraine published claim forms and rules for additional categories of damages

On 23 December 2024, the Register of Damages for Ukraine caused by the aggression of the russian federation against Ukraine (the “Register”) published the forms and rules for submitting claims for compensation in newly opened categories of claims. This will allow individuals and legal entities, as well as the state of Ukraine, to start preparing […]

Posted on January 7, 2025

Newsroom

Oleksii Maslov re-elected to the Board of the Ukrainian Arbitration Association

AVELLUM is pleased to announce that Oleksii Maslov, Counsel in our Dispute Resolution practice, has been re-elected to the Board of the Ukrainian Arbitration Association following the General Meeting held on 12 December 2024. Oleksii will continue his work on the Board, contributing to the development of international arbitration in Ukraine and supporting the professional […]

Posted on December 27, 2024

News

Oleksii Maslov recognized in the International Lexology Ranking

AVELLUM is proud to announce that Oleksii Maslov, Counsel in our Dispute Resolution practice, has been recognized in three prestigious categories by Lexology (formerly Who’s Who Legal) for his outstanding expertise and contributions to international arbitration. Oleksii has been recognized in the following categories: This recognition highlights Oleksii’s dedication to achieving the best outcomes for […]

Posted on December 17, 2024

Key contacts

KOSTIANTYN LIKARCHUK

Senior Partner

klikarchuk@avellum.com

OLEKSII MASLOV

Partner

omaslov@avellum.com

Team

VADIM MEDVEDEV

Partner

vmedvedev@avellum.com

ANNA VLASENKO

Managing Associate

avlasenko@avellum.com

ROMAN SYNIUTA

Managing Associate

rsyniuta@avellum.com

KRISTINA MYSENKO

Senior Associate

kmysenko@avellum.com

ILLIA IVANUSA

Senior Associate

iivanusa@avellum.com

TETIANA ZAVALKO

Associate

tzavalko@avellum.com

OLEKSANDR STADNYK

Associate

ostadnyk@avellum.com

Practice

International arbitration

We do not ‘arbitrate for arbitration’s sake’. We understand that arbitration, as any dispute, is a stress for your business and always tailor our strategy to your needs.

Practice

Tax

We provide full-scope tax services, including domestic and international tax planning, tax disputes, transactional tax and financing transactions.

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