Cesium Formate from Mexico
Cesium formate (HCOOCs) is a high-density formate salt used in ultra-deep oil well drilling fluids. Classified as a formic acid salt under HTS 2915.12.00.00, it is a pure organic compound. Imported in solution or powder for high-pressure applications.
Duty Rate — Mexico → United States
15.5%
Rate breakdown
9903.03.0110%Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
Import Tips
• High-value import requires detailed composition analysis to prevent Chapter 28 metal compound classification
• Declare density and viscosity specs for drilling fluid verification
• EPA import notifications may apply for oilfield chemicals