Borosilicate Glass Chunks from Mexico
Massive chunks of borosilicate glass, known for thermal resistance, in unworked form straight from the melting furnace. HTS 7001.00.20.00 applies to this 'other glass in the mass' used as raw material for labware and cookware manufacturing.
Duty Rate — Mexico → United States
13%
Rate breakdown
9903.05.5510%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico
Import Tips
• Label with boric oxide content to distinguish from soda-lime; helps CBP verify non-waste status
• Use ISF filings for bulk glass shipments over 100kgs to preempt holds