ARTICLE
9 September 2026

UK Weekly Sanctions Update - Weeks Of August 24, And August 31, 2026

MB
Mayer Brown

Contributor

Mayer Brown is an international law firm positioned to represent the world’s major corporations, funds, and financial institutions in their most important and complex transactions and disputes.
This weekly update examines recent UK sanctions enforcement actions, including a major alert on the A7 sanctions evasion network, OFSI's penalty against Citibank for Russia sanctions breaches, and the NCA's settlement with an agricultural trading company linked to suspected money laundering. The update also covers new strategic export control statistics and OTSI's annual review revealing 178 reports of potential trade sanctions breaches.
United Kingdom Government, Public Sector
Jason Hungerford’s articles from Mayer Brown are most popular:
  • within Government and Public Sector topic(s)
  • with readers working within the Oil & Gas industries
Mayer Brown are most popular:
  • within Government, Public Sector and Compliance topic(s)

In this weekly update, we summarise the most notable updates in the UK sanctions world. If you have any questions in respect of any of the developments set out below, please do not hesitate to contact a member of our London Global and Government Trade team listed above.

  • NCA, OFSI and the FCDO issue alert on the A7 sanctions evasion network: On 31 August 2026, the NCA and its National Economic Crime Centre, in conjunction with OFSI and the FCDO, issued an alert on the A7 sanctions evasion mechanism. A7 is a complex web of financial structures and tools hosted between Kyrgyzstan and Russia, with state-level backing. This alert highlights the risks posed to the international financial system and key concerns to consider regarding existing anti-money laundering controls. (https://www.nationalcrimeagency.gov.uk/who-we-are/publications/826-necc-a7-sanctions-evasion-mechanism/file)
  • OFSI imposes penalty for Russia sanctions breaches: On 11 August 2026, OFSI imposed a penalty of £4,732,830.58 on Citibank, N.A., London Branch. The penalty was published on 2 September 2026, and was imposed for breaches of the Russia (Sanctions) (EU Exit) Regulations 2019 and the Global Anti-Corruption Sanctions Regulations 2021. (CBNA_London_Public_Penalty_Notice.pdf).
  • ECJU publishes strategic export controls licensing statistics: On 27 August 2026, the ECJU published the Q1 2026 data for licensing decisions for standard individual export licences, which are up by 11% from the previous quarter (Q4 2025). (Strategic export controls commentary: 1 January to 31 March 2026 - GOV.UK)
  • NCA settles with company linked to suspected money laundering and sanctions evasion: On 27 August 2026,the National Crime Agency ("NCA") entered into a settlement agreement with ENEX Premium Trading Limited (“ENEX”), an agricultural trading company owned by Azerbaijani national Nadir Valiyev. The NCA investigation revealed that funds frozen in UK accounts were traced to Chinese bank accounts that had received tens of millions of pounds from suspected front companies, some of which have since been designated under US sanctions for facilitating illicit Iranian oil sales and funnelling money to the Iranian QODS Force. The funds were also linked to allegations that Mr Valiyev's companies had been involved in the shipment of stolen Ukrainian grain. Mr Valiyev denied any criminal activity, and the settlement does not constitute an admission of unlawful conduct. (NCA Press Release)
  • OTSI publishes Annual Review for 2025-26: On 27 August 2026, the Office of Trade Sanctions Implementation ("OTSI") published its Annual Review for 2025-26. In the reporting period, OTSI received 178 reports or referrals relating to potential breaches of trade sanctions. The majority of reports were submitted by the financial services sector and related to potential breaches under the UK Russia regime. 104 enforcement cases were closed, with 41 for which no breach was identified and 40 cases which were closed by OTSI and referred to HMRC for a range of reasons, including criminal enforcement consideration or where potential breaches predate OTSI’s enforcement powers. (OTSI Annual Review 2025-26 – GOV.UK)
  • TikTok submits voluntary disclosure report to OFSI: On 21 August 2026, TikTok disclosed that the company submitted a voluntary disclosure to OFSI and the Central Bank of Ireland in April 2026, having identified a potential issue relating to its compliance with applicable sanctions regulations. TikTok has reportedly made disclosures to other regulators on a preliminary basis. As the matter remains under review, the nature of the suspected breach has not been publicly disclosed. (MLex)

Visit us at mayerbrown.com

Mayer Brown is a global services provider comprising associated legal practices that are separate entities, including Mayer Brown LLP (Illinois, USA), Mayer Brown International LLP (England & Wales), Mayer Brown (a Hong Kong partnership) and Tauil & Chequer Advogados (a Brazilian law partnership) and non-legal service providers, which provide consultancy services (collectively, the "Mayer Brown Practices"). The Mayer Brown Practices are established in various jurisdictions and may be a legal person or a partnership. PK Wong & Nair LLC ("PKWN") is the constituent Singapore law practice of our licensed joint law venture in Singapore, Mayer Brown PK Wong & Nair Pte. Ltd. Details of the individual Mayer Brown Practices and PKWN can be found in the Legal Notices section of our website. "Mayer Brown" and the Mayer Brown logo are the trademarks of Mayer Brown.

© Copyright 2026. The Mayer Brown Practices. All rights reserved.

This Mayer Brown article provides information and comments on legal issues and developments of interest. The foregoing is not a comprehensive treatment of the subject matter covered and is not intended to provide legal advice. Readers should seek specific legal advice before taking any action with respect to the matters discussed herein.

The content of this article is intended to provide a general guide to the subject matter. Specialist advice should be sought about your specific circumstances.

[View Source]

Mondaq uses cookies on this website. By using our website you agree to our use of cookies as set out in our Privacy Policy.

Learn More