Weathering Stockpile Coal from Mexico
Stockpile coal exposed to weathering loses some volatiles but retains 'other coal' classification under HTS 2701.19.00 if still non-agglomerated. Used when fresh supply constrained.
Duty Rate — Mexico → United States
0%
Rate breakdown
9903.05.860%Universal product exemption (U.S. note 52(b))
Import Tips
• Test for oxidation levels affecting calorific value and spontaneous heating risk
• Time-stamp stockpile exposure duration in certificates of analysis
• Special ventilation required for partially oxidized coal shipments