Birmingham, Ala. – September 15, 2026 -- The International Centre for Settlement of Investment Disputes (ICSID) Tribunal has published a decision confirming that the Government of Mexico violated international law through its treatment of Vulcan Materials Company and its investments in Quintana Roo, contradicting Mexico's claims that its actions constituted legitimate environmental enforcement.
Tribunal rejects Mexico's environmental counterclaims as inadmissible
The ICSID panel declared Mexico's counterclaims of environmental harm inadmissible and found that Mexican environmental authorities improperly used regulatory powers to target Vulcan, shut down its lawful operations, and prevent the company from meaningfully defending itself in Mexican proceedings.
Vulcan cites six Clean Industry Awards and 80,000 planted trees
Vulcan received six Clean Industry Awards from PROFEPA, Mexico's own environmental enforcement agency, and planted more than 80,000 native trees as part of restoration and conservation work during its operations in Quintana Roo.
Mexico allowed 12 nearby quarries to operate without permits after Vulcan shutdown
Following the closure of Vulcan's operations, the Mexican government allowed at least 12 nearby quarries to operate without the permits and environmental reviews it had imposed on Vulcan, a disparity the company says demonstrates discriminatory and arbitrary application of environmental regulations.
Decision leaves three major disputes unresolved
The Tribunal's ruling does not adjudicate the May 2022 military shutdown of Vulcan's site, the March 2023 occupation of its port, or the September 2024 decree depriving the company of the use and benefit of its property. Vulcan said these actions remain unresolved and could trigger additional legal, diplomatic, and economic consequences.
"Mexico violated international law, acted arbitrarily, without good faith and transparency, and denied Vulcan basic due process," the company said in a statement, adding that the dispute raises broader questions for American businesses operating in Mexico.