OFAC dismantles Ecuador fishing fleet cocaine network under Pacific Viper

What happened

On August 20, 2026, the U.S. Department of the Treasury’s Office of Foreign Assets Control (OFAC) designated 15 Ecuador-based individuals and entities and identified 10 vessels as blocked property. The action targets a network that Treasury says covertly shipped thousands of kilograms of cocaine each month from South America toward Mexico, for eventual distribution in the United States.

The designated individuals are affiliated with Los Choneros and Los Lobos, two Ecuadorian groups the U.S. State Department designated as Foreign Terrorist Organizations (FTOs) on September 4, 2025. Treasury says the network operated under the guise of legitimate fishing businesses based near Manta, Ecuador, using vessels to refuel and resupply smaller go-fast boats that carried cocaine north through the Eastern Pacific Ocean toward Mexico, where cartels including the Sinaloa Cartel and Cartel de Jalisco Nueva Generacion (CJNG) took over distribution.

Among those named: Alfonso Mero Mero and his sons, who Treasury says ran a fishing vessel network through the family business Arcasdenoe, S.A., smuggling cocaine and refueling go-fast vessels. Julio Javier Mero Franco is described as coordinating transport of roughly 30 to 40 tons of cocaine a month from Ecuador to Central America and Mexico. Jimmy Leonidas Alarcon Holguin, named for coordinating refueling of cocaine-laden vessels, owns or controls six Ecuadorian entities, five in marine fishing and one trading construction materials. Ten fishing vessels were named as blocked property.

Treasury applied Executive Order 14059, covering international proliferation of illicit drugs, and Executive Order 13224 as amended, covering material support to FTOs, depending on the individual. Since the start of 2025, OFAC has taken close to 30 actions against more than 300 individuals and entities in this cartel-targeting effort, coordinated with the Homeland Security Task Force. The U.S. Coast Guard’s Operation Pacific Viper, launched in August 2025, has seized more than 225,000 pounds of cocaine, roughly 112 tons, in the Eastern Pacific as of June 2026.

Why it matters

This case is a clean illustration of trade-based money laundering hiding inside an unremarkable sector. A fishing fleet is exactly the kind of small, cash-and-fuel-intensive business that rarely draws enhanced due diligence. That is precisely why it works as cover.

The layering here runs through corporate structure, not just transaction volume. Alarcon Holguin’s six-entity web, five fishing companies and one construction-materials trader under common control, is a pattern compliance teams should recognize: beneficial owners spreading operations across multiple legal entities in adjacent but distinct trade categories, fragmenting the picture any single bank or counterparty sees.

The scale also signals something about upstream conditions. Treasury links this action to the 2026 National Southwest Border Counternarcotics Strategy, which describes South American cocaine production at record levels and Ecuador as an emerging launch point for shipments to Mexico. That points to sustained exposure for institutions with correspondent or trade-finance relationships touching Ecuadorian ports, not a one-off event.

Practitioner angle

Financial institutions with correspondent banking, trade finance, or vessel-financing exposure to Ecuador, particularly around Manta, should treat this designation as a live obligation, not a background read.

• Screen customer and counterparty names, and any related vessels, against the 15 newly designated individuals and entities and the 10 named vessels, then check for indirect exposure through shared addresses, directors, or beneficial owners.
• Review beneficial-ownership files for small fishing or marine-services clients for multi-entity structures where one individual controls several companies across unrelated trade categories, echoing the Alarcon Holguin pattern.
• Flag fuel or supply purchase volumes that look large relative to a fishing operator’s declared fleet size, especially government-subsidized fuel drawn in quantities inconsistent with normal operations.
• Watch trade-finance applications tied to small Ecuadorian fishing exporters for round-number shipments or newly formed counterparties with no operating history.

The single most important step: run the full list of 15 names, 10 vessels, and known affiliated entities through screening today, not at the next scheduled refresh, and extend the check one layer beyond the direct match.