CMC Technical Grade FH9 from Mexico
Fast hydration technical grade FH9 CMC for oil drilling muds and ceramics. HTS 3912.31.00 for this unmodified carboxymethylcellulose salt powder.
Duty Rate — Mexico → United States
6.4%
Rate breakdown
9903.03.030%Articles the product of any country, as provided for in subdivision (aa)(ii) of U.S. note 2 to this subchapter
Import Tips
• API 13A certification required for oilfield use; declare filtration control properties; check for PAC substitution risks