GDL 99% Min. Technical Grade from Mexico
Technical grade glucono-δ-lactone with 99% minimum purity for industrial applications, under HTS 2932.20.50.20. Used in polymer production and metal surface treatment requiring controlled acidity. Qualifies as separate chemically defined compound per Chapter 29 note (a).
Duty Rate — Mexico → United States
110%
Rate breakdown
9903.04.6096.3%Except as provided in heading 9903.04.61, patented pharmaceutical articles as provided for in subdivisions (c) and (d) of U.S. note 40 to this subchapter
9903.05.5510%Except for products described in headings 9903.05.85–9903.05.92 and 9903.05.94, articles the product of Mexico, as provided for in U.S. note 52 to this subchapter
Import Tips
• Specify 'technical grade' vs 'food grade' on invoice; affects EPA/FDA import channels
• TSCA certification required for chemical substances entering US commerce
• Heavy metal specs (<10 ppm total) even for technical grade due to eventual food chain risks