The Southern Cone tri-border area —comprising Ciudad del Este (Paraguay), Foz do Iguaçu (Brazil) and Puerto Iguazú (Argentina)— constitutes one of the most distinctive cross-border spaces in South America. Its particular geographical configuration combines densely populated urban areas with strategic riverine zones that facilitate intense cross-border circulation. More than 650,000 inhabitants coexist in an integrated social space marked by intense movement of people and one of the most heavily used commercial routes on the continent.

Within this environment of high mobility and commercial dynamism, smuggling has consolidated itself as the principal structuring axis of illicit economies. Since the creation of the free trade zone in Ciudad del Este in 1995, the region became a re-export centre for products destined mainly for the Brazilian market. Cigarettes, electronic products and alcoholic beverages enter Brazil as contraband, mobilized by local family clans and transnational illicit networks.

The report identifies a criminal ecosystem of coexistence characterized by interdependence, profitability and the historical continuity of illicit markets, sustained by commercial free movement, corruption and institutional fragility. Unlike other border areas in South America, the tri-border area presents high levels of criminal activity but low levels of violence, without armed disputes over territorial control or manifestations of criminal governance based on extortion or systematic coercion.

The report analyses the evolution of organized crime in the region, from the era of the “comboios” to the specialization of riverine routes and the “ant smuggling” model. It also examines the presence of the Primeiro Comando da Capital (PCC), which has consolidated control over clandestine ports in specific sectors of the Paraná River, without exercising generalized authority over the regional population.

Beyond smuggling, the report addresses cannabis trafficking produced in Paraguay, cocaine trafficking, arms trafficking and money laundering. Ciudad del Este emerges as a strategic financial node where commercial companies, real estate businesses, gambling houses and crypto-asset operations proliferate, facilitating the movement of illicit capital. The study also finds that the Argentinian side of the tri-border area has emerged as an increasingly prevalent smuggling hub over the past five years, generating new contraband routes and new security threats in the region.

The study is based on fieldwork and direct observation conducted in Ciudad del Este, Foz do Iguaçu and Puerto Iguazú, including interviews with members and former members of security forces, customs officials, judicial officials, academics and journalists specialized in the criminal dynamics of the tri-border area.

The Southern Cone tri-border area thus reveals a highly collaborative and adaptable criminal ecosystem, where smuggling functions as a base economy connecting flows, actors and routes used for drug trafficking, arms trafficking and other illegal goods. Its persistence is explained by its relatively non-violent character, informal regulation sustained by family clans and limited state capacities in the face of complex transnational dynamics.