Uni-ball Signo Gel Refill from Mexico
Uni-ball Signo UM-151 gel pen refills deliver fraud-resistant, archival-quality ink in 0.38mm extra-fine tip. Compatible only with Signo series pens via proprietary fitting. This HTS 9608.99.20.00 classification applies to specialized gel ink cartridges for porous-tipped writing instruments.
Duty Rate — Mexico → United States
12.7%
Rate breakdown
9903.03.0110%Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
Import Tips
• Include patents or trademarks on packaging for brand protection at customs
• Separate colors by type to avoid blending issues
• Certify ink as non-toxic if targeting office supply markets