Servicio de Administración Tributaria
The Tax Administration Service (Spanish: Servicio de Administración Tributaria, SAT) is the revenue service of the Mexican federal government. The government agency is a deconcentrated bureau of the Secretariat of Finance and Public Credit, Mexico's cabinet-level finance ministry, and is under the immediate direction of the Chief of the Tax Administration Service.
Source: Wikipedia — Servicio de Administración Tributaria (CC BY-SA 4.0)