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
9903.05.5510%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico
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