Hydrochloric Acid 37% Solution
US-produced hydrochloric acid (muriatic acid) in 37% concentration, shipped abroad for purity analysis and returned in original containers without alteration. Classified under Chapter 28 HTS 2806.10, eligible for duty-free re-import under 9801.00.10.27 when condition unchanged.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If for non-US origin acid or after 3-year limit
Standard Chapter 28 tariff applies without US-returned goods provisions
If repackaged but not advanced in value abroad
Minor repackaging may qualify under broader 9801.00.30 rather than strict 9801.00.10.27
If used in manufacturing process abroad before return
Goods advanced in value through foreign manufacturing use 9802 assembly provisions
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Import Tips & Compliance
• Retain original export bills of lading showing US origin and date of export
• Obtain foreign lab reports verifying no chemical processing or repackaging occurred
• Label containers clearly to prevent confusion with hazardous material declarations
Related Products under HTS 9801.00.10.27
Sodium Hydroxide Pellets
Industrial-grade sodium hydroxide (caustic soda) pellets exported from the US for quality testing at a foreign laboratory and returned unchanged within 3 years. This inorganic chemical base falls under Chapter 28 (inorganic chemicals) as HTS 2815.12 and qualifies for 9801.00.10.27 when returned without advancement in value or condition.
Sulfuric Acid Battery Grade
Battery-grade sulfuric acid (H2SO4 98%) manufactured in the US, exported for automotive testing, returned unchanged within 3 years. Chapter 28 product (2807.00) qualifying for 9801.00.10.27 duty-free entry when not improved abroad.
Nitric Acid 68% Technical Grade
Technical grade nitric acid (HNO3 68%) of US origin, sent abroad for calibration standards and returned in original drums without modification. Chapter 28 HTS 2808.00 product eligible under 9801.00.10.27 for unchanged returns.
Ammonium Nitrate Prills
US-produced ammonium nitrate prills (34.5-0-0) exported for fertilizer field trials, returned unchanged within 3 years. Chapter 28 (3102.30) agricultural chemical qualifying for 9801.00.10.27 duty-free re-entry.
Potassium Hydroxide Flakes
Industrial potassium hydroxide (KOH) flakes exported from US soap manufacturing facility for overseas quality verification, returned without processing. Chapter 28 HTS 2815.20 product under 9801.00.10.27.
Phosphoric Acid 85% Food Grade
Food-grade phosphoric acid (85%) of US manufacture, shipped for beverage industry testing abroad, returned unchanged. Chapter 28 (2809.20) product qualifying for 9801.00.10.27 duty-free entry.