AgSil 16H Potassium Silicate Fertilizer Grade from Japan
AgSil 16H is a horticultural potassium silicate solution (2.5:1 ratio) for plant nutrition and disease resistance. Still classified under HTS 2839.90.1000 as a commercial potassium silicate, not as a fertilizer preparation. Imported for greenhouse and hydroponics.
Duty Rate — Japan → United States
12.5%
Rate breakdown
9903.05.4912.5%Except for products described in headings 9903.05.85–9903.05.92, articles the product of Japan, with an ad valorem (or ad valorem equivalent) rate of duty under column 1 less than 12.5 percent, as provided for in U.S. note 52 to this subchapter
Import Tips
• Distinguish from Chapter 31 by lacking NPK guarantees
• EPA pesticide claims require FIFRA registration
• Avoid agricultural entry tariff benefits misuse