U.S. authorities escalated action against the Russian cryptocurrency exchange Garantex after a March international law-enforcement operation seized its domains and servers, froze more than $26 million in cryptocurrency, and unsealed charges against alleged operators Aleksej Besciokov and Aleksandr Mira Serda. The Justice Department, Secret Service, FBI, Germany, and Finland said Garantex processed at least $96 billion in transactions since 2019 and was used to launder proceeds from hacking, ransomware, terrorism, drug trafficking, and sanctions violations, including activity that continued after OFAC sanctioned the exchange in 2022. The State and Treasury departments later expanded the pressure campaign by offering rewards of up to $6 million for information on Garantex leadership and sanctioning executives and affiliated firms.
Investigators and blockchain analysts say activity quickly shifted to replacement infrastructure in Kyrgyzstan, where Grinex emerged as Garantex’s successor and the ruble-backed stablecoin A7A5 became a major channel for cross-border transfers linked to Russian sanctions evasion. Reporting cited transfer volumes above $1 billion per day and $41.2 billion in cumulative value by late July 2025, with A7A5 marketed as a lower-freeze-risk route into USDT after the Garantex takedown. Treasury subsequently designated Grinex, while broader U.K. and U.S. scrutiny of Kyrgyz banks and crypto services underscored how sanctions-evasion networks are moving from traditional banking rails to regional exchanges, stablecoins, and decentralized liquidity pools.

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11 events from the most recent confirmed update back to the earliest known activity.
On 2026-05-27, the UK sanctioned 18 cryptocurrency exchanges, banks, companies, and individuals accused of helping Russia bypass trade restrictions through digital assets. The action focused on the A7 network and A7A5 stablecoin and also included HTX over alleged flows involving previously sanctioned entities such as Grinex and Garantex.
On 2026-02-21, Elliptic published analysis tying Russia-linked cryptocurrency services to broader sanctions-evasion activity. The report connected exchanges and payment mechanisms including Garantex-related infrastructure and Kyrgyz-linked services into a wider illicit finance network.
On 2025-08-22, the UK rolled out additional sanctions against another Kyrgyz bank, reflecting continued pressure on Kyrgyz financial channels linked to Russian sanctions evasion. This followed earlier scrutiny of Kyrgyz banks and growing concern that crypto services were replacing restricted banking routes.
On 2025-08-14, the U.S. State Department and Treasury announced coordinated actions against Garantex, including rewards totaling up to $6 million for information leading to the arrest or conviction of key figures. Treasury also re-designated Garantex, designated Grinex as its successor exchange, and sanctioned three Garantex executives and six partner companies in Russia and Kyrgyzstan.
By 2025-07-28, Elliptic reported that A7A5 transfers exceeded $1 billion per day and had reached $41.2 billion in aggregate value, with market capitalization rising rapidly. The report said the token had become a major route into USDT through Grinex, Meer, and its own decentralized exchange.
After the March 2025 disruption of Garantex and the freezing of 26 million USDT, reporting identified Grinex as a successor exchange used alongside A7A5 and other services. It was described as a new channel for Russian users seeking access to international crypto markets.
On 2025-03-07, the Justice Department unsealed charges against Aleksej Besciokov and Aleksandr Mira Serda, alleging they controlled and operated Garantex between 2019 and 2025. Prosecutors said the pair knowingly enabled illicit transactions and concealed criminal activity on the platform.
On 2025-03-07, U.S., German, and Finnish authorities disrupted Garantex, seized its domains and supporting servers, and froze more than $26 million in cryptocurrency. U.S. officials said the exchange had processed at least $96 billion in transactions since April 2019 and facilitated laundering tied to ransomware, hacking, terrorism, drug trafficking, and sanctions evasion.
A7A5, a ruble-linked stablecoin tied in reporting to A7 LLC, launched in Kyrgyzstan in January 2025. Subsequent reporting described it as a vehicle that could help Russian users move funds across borders outside the traditional banking system.
In early 2025, the United States and United Kingdom sanctioned Keremet Bank for allegedly facilitating cross-border payments for Russia's Promsvyazbank. Kyrgyz regulators also pushed domestic banks to reduce dealings with sanctioned Russian entities.
In April 2022, the U.S. Treasury's Office of Foreign Assets Control sanctioned the Russian cryptocurrency exchange Garantex. Later court filings and government statements said the exchange continued operating and altered wallet infrastructure to evade sanctions detection.
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