The United States Treasury Department’s Office of Foreign Assets Control (OFAC) designated 11 individuals and two entities connected to the Sinaloa Cartel on May 20, 2026, for laundering fentanyl trafficking proceeds through cryptocurrency networks. The action included the addition of six Ethereum wallet addresses to the Specially Designated Nationals (SDN) list. Treasury Secretary Scott Bessent stated that the department would “continue to target terrorist cartels and their fentanyl trafficking networks” to protect American communities.

OFAC Designates 11 Individuals and Two Front Companies

The sanctions targeted two overlapping networks operating on behalf of Los Chapitos, the Sinaloa Cartel faction led by Ivan and Alfredo Guzman Salazar, sons of imprisoned drug lord Joaquin “El Chapo” Guzman Loera. Armando de Jesus Ojeda Aviles was identified as the primary money laundering coordinator, overseeing the conversion of bulk U.S. cash from drug sales into cryptocurrency for transfer back to cartel leadership in Mexico. Jesus Alonso Aispuro Felix served as chief money broker, managing high-volume crypto transfers across multiple platforms.

A second network led by fugitive Jesus Gonzalez Penuelas, known as “Chuy Gonzalez,” has operated distribution cells across California, Texas, Colorado, Washington, Utah, and Nevada since 2007. The Drug Enforcement Administration has offered a five million dollar reward for information leading to his arrest. Rodrigo Alarcon Palomares, another designated individual, was indicted in a Colorado federal court in April 2024 on three counts of laundering drug proceeds through cryptocurrency. The two sanctioned entities, Gorditas Chiwas and Grupo Especial Mamba Negra S. de R.L. de C.V., were identified as front businesses used by the network.

Stablecoin Pipeline Moves Fentanyl Proceeds Across Borders

According to blockchain analytics firm Chainalysis, the laundering operation followed a structured pipeline. U.S.-based couriers collected bulk cash from street-level fentanyl sales, converted proceeds into stablecoins through bulk transactions, and routed funds through decentralized exchanges using inter-stablecoin swaps before cashing out through centralized platforms. The method enabled the cartel to move drug proceeds across the U.S.-Mexico border with relative speed compared to traditional wire transfer channels.

A 2024 civil forfeiture case documented approximately 15 million dollars in cryptocurrency processed through a single exchange account tied to the network, according to TRM Labs research. A separate Los Angeles case alleged 50 million dollars in drug proceeds moved through Chinese underground banking organizations. TRM Labs data indicated that Chinese fentanyl precursor manufacturers received between 30.9 million dollars in 2023 and 39.1 million dollars in 2025 in cryptocurrency payments, with approximately 97 percent of such manufacturers accepting digital currency.

Six Ethereum Addresses Added to SDN List Signal Broadening Enforcement

OFAC added six Ethereum addresses to the SDN list as part of the designation. Five of the six addresses were attributed to Ojeda Aviles, while one was linked to Liliana Orozco Romero. TRM Labs described the multi-wallet pattern as “consistent with multi-wallet fragmentation used to layer illicit funds,” a technique designed to obscure transaction trails across blockchain networks. The designation requires all virtual asset service providers processing transactions involving these addresses to block the funds and report the activity.

The action reflects a broader enforcement trend. According to TRM Labs, over 50 percent of cryptocurrency addresses designated by OFAC in 2025 were connected to illicit drug markets. Chainalysis confirmed that all sanctioned addresses had been labeled in its compliance product suite, enabling exchanges and financial institutions to screen for exposure. The sanctions follow the September 2023 designation of Mario Alberto Jimenez Castro, a predecessor to Ojeda Aviles in the same laundering network.

Risks and Uncertainties for Crypto Compliance

The sanctions underscore ongoing tensions between cryptocurrency’s permissionless architecture and regulatory enforcement demands. Critics argue that sanctioning individual wallet addresses amounts to a reactive approach, as cartel operatives can generate new addresses at minimal cost and shift to privacy-enhancing tools or alternative blockchains. The reliance on centralized exchange chokepoints for enforcement raises questions about effectiveness against actors who increasingly use decentralized protocols and peer-to-peer trading channels.

From a compliance perspective, TRM Labs noted that screening counterparty relationships beyond direct SDN list matching remains essential, as secondary exposure through intermediary wallets could implicate otherwise compliant platforms. The growing intersection of narcotics enforcement and cryptocurrency regulation may accelerate legislative efforts to impose stricter know-your-customer requirements on decentralized platforms, though the timeline and scope of such measures remain uncertain.

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