South America: International Law

Investment treaty arbitration requires careful analysis of temporal jurisdiction to determine whether challenged State conduct falls within a treaty's scope. This examination explores the legal framework governing...

Senator Carlos Portinho has introduced Amendment #8 to Bill No. 2,210/2022, proposing significant measures to protect Brazilian judicial sovereignty in patent disputes. The amendment introduces mechanisms to counter foreign anti-suit injunctions and interim licenses that interfere with Brazilian court proceedings, including business suspension powers and substantial financial penalties. How will this legislative initiative reshape Brazil's approach to international patent litigation and strengthen its innov

The Supreme Court's January 27, 2025 decision denying the Republic of Argentina's petition for a writ of certiorari in Argentina v. Attestor Master Value...

FinCEN has issued a new alert detailing how Mexican cartels are exploiting U.S. financial institutions to smuggle fuel across the southern border, evade Mexican import taxes, and launder billions in illicit proceeds. The alert outlines red flags for financial institutions and announces new OFAC sanctions targeting key operatives in the fiscal fuel theft scheme.

The United States has expanded its list of Mexican criminal organizations designated as Foreign Terrorist Organizations and Specially Designated Global Terrorists, adding the Juárez Cartel and Los Viagras to six previously designated cartels. This development significantly impacts compliance and risk management for companies operating in Mexico with U.S. connections, as U.S. law prohibits providing material support to designated organizations and restricts transactions with blocked entities.

Brazil has formally challenged U.S. tariffs through the World Trade Organization, but according to former Brazilian diplomat and attorney Régis Arslanian, this multilateral approach may prove largely ineffective. The action raises questions about the declining power of international trade dispute mechanisms and whether traditional diplomatic channels still hold sway over major economic powers.

On August 30, 2026, President Claudia Sheinbaum submitted a bill to Congress that would amend the Foreign Investment Law and create a national-security review mechanism for foreign acquisitions in Mexico.

Investment treaty arbitration requires careful analysis of temporal jurisdiction to determine whether challenged State conduct falls within a treaty's scope. This examination explores the legal framework governing...

Brazil has formally challenged U.S. tariffs through the World Trade Organization, but according to former Brazilian diplomat and attorney Régis Arslanian, this multilateral approach may prove largely ineffective. The action raises questions about the declining power of international trade dispute mechanisms and whether traditional diplomatic channels still hold sway over major economic powers.