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Work 020 3818 3500
Fax 020 3818 3501
London, Paris

Natalia Chumak

Work 020 3818 3500
Signature Litigation LLP

Work Department

Litigation and Arbitration


Natalia has nearly 20 years of litigation and arbitration experience in London, which has involved working in leading UK law firms. She is highly respected within the CIS business community, and as an English lawyer and a native Russian speaker, her legal career has a strong focus on acting for clients from ex-Soviet countries (primarily Russia, Ukraine, Kazakhstan and Tajikistan) and for high-net-worth individuals managing their assets, often in challenging and complex disputes in High Court proceedings and international arbitration.

Natalia is an experienced commercial litigator and her work includes mediation and arbitration on cases covering contractual disputes, misrepresentation actions, fraud and bribery. Natalia has extensive experience in a variety of commercial disputes including shareholders’ disputes, claims arising out of loan agreements and related security arrangements, oral high level agreements between oligarchs in relation to joint investments, fraud claims and related asset tracing actions, claims arising out of liquidation of investment funds, enforcement of arbitral awards in off-shore jurisdictions and related insolvency proceedings and many others. 

Natalia’s case highlights include acting for a Russian oil and gas business group, in relation to proceedings arising out of loan agreements, personal guarantees and other loan security documentation; a CIS business group in a breach of contract claim arising out of a shareholders’ dispute in automobile industry; a claimant regarding an SPA in relation to the sale of a group of Russian companies in the electricity/infrastructure industry; and a respondent regarding a shareholders’ agreement in relation to a joint venture between CIS parties in the aviation and real estate sectors.


Qualified 2002; Partner Field Fisher Waterhouse 2010; Partner Signature Litigation 2013. Contributes to ‘Financier Worldwide Magazine’, ‘Corporate Disputes’, Russian legal publications ‘Legal Insight’ and ‘The Law’, and was the curator of the English law section of ‘Legal Insight’ in 2013.


Fluent English and Russian


London Solicitors Litigation Association


Natalia is the Founder and a Trustee of UK animal welfare charity LAPA (Helping animals in Russia).

London: Dispute resolution

Banking litigation: investment and retail

Within: Banking litigation: investment and retail

Signature Litigation LLP 'does a good job of predicting the potential moves of opponents and taking countermeasures in advance'. The practice advises on all aspects of large-scale banking litigation. Highlights included acting for one of the three lead groups of RBS shareholders, which brought unprecedented claims under the Financial Services and Markets Act’s section 90, against RBS with respect to its failed 2008 rights issue; the work involved the first major test of the section 90 liability, supported by a huge evidential a>nd forensic review of RBS’ businesses, particularly in relation to liquidity, capital and credit market exposure. The team also acted for Desiman, a property company, against Bank of Scotland, HBOS Treasury Services and Lloyds Bank for mis-selling LIBOR- referenced interest rate swaps; breach of implied representations; and wrongful appointment of administrative receivers.Graham Huntley is the founding partner and Abdulali Jiwaji 'has an ability to analyse difficult issues and provide concise and clear advice'. Other highly rated litigators are Simon Bushell, Julian Connerty, Daniel Spendlove and Natalia Chumak, along with Adam Rooney, Hermes Marangos, Ioannis Alexopoulos and Josh Wong, while Rory Spillman is a notable senior associate.

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Commercial litigation

Within: Commercial litigation

'A first-class firm with a positive, collaborative culture of integrity', Signature Litigation LLP is a highly specialised dispute resolution firm, with a strong focus on large, complex and often cross-border cases. The practice advised the ECU Group in a pre-action disclosure application against HSBC UK, HSBC Private Bank and HSBC USA for trading data involving a series of foreign exchange trades in excess of £400m. Graham Huntley is the recommended founding partner; Abdulali Jiwaji 'has excellent interpersonal skills, is very good with clients and a pleasure to work with'; and Daniel Spendlove is 'very smart, client focused and details-oriented'. Other key contacts include Simon Bushell, Ioannis Alexopoulos, Natalia Chumak, Hermes Marangos, Adam Rooney, Julian Connerty and Josh Wong .

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International arbitration

Within: International arbitration

Signature Litigation LLP 'has a strong and experienced arbitration team'. The practice has substantial experience acting for clients in high-value, complex international arbitrations; and is particularly noted for disputes work involving Russia, Ukraine and Kazakhstan. The key contacts are Natalia Chumak, Ioannis Alexopoulos, Adam Rooney and Josh Wong. Counsel Neil Newing, who joined from Eversheds Sutherland (International) LLP, and senior associate Nick Storrs are also highly regarded.

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