GDL 99% Min. Technical Grade from China
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 — China → United States
16.2%
Rate breakdown
9903.05.3112.5%Section 301 (forced labor) — additional 12.5% ad valorem on products of China
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