Key facts
- HS subheading
- 6903.10
- Duty (MFN)
- Free
- National lines
- 1
- Tariff
- United States
- Chapter
- 69: Ceramic products
Summary
The United States tariff splits HS 6903.10 (other refractory ceramic goods (for example, retorts, crucibles, muffles, nozzles, plugs, supports, cupels, tubes, pipes, sheaths, rods and slide gates), other than those of siliceous fossil meals or of similar siliceous earths, containing by weight more than 50 % of free carbon) into 1 national line: 6903.10.00.00 (containing by weight more than 50 percent of free carbon). Every United States line under 6903.10 is free of general (MFN) duty.
United States lines under 6903.10
The United States tariff splits HS 6903.10 (other refractory ceramic goods (for example, retorts, crucibles, muffles, nozzles, plugs, supports, cupels, tubes, pipes, sheaths, rods and slide gates), other than those of siliceous fossil meals or of similar siliceous earths, containing by weight more than 50 % of free carbon) into 1 national line: 6903.10.00.00 (containing by weight more than 50 percent of free carbon).
Every United States line under 6903.10 is free of general (MFN) duty.
- 6903.10.00.00Containing by weight more than 50 percent of free carbonDuty: Free
In other countries
No other national tariff on border.bot has live lines under 6903.10 yet.
Frequently asked questions
How many national tariff lines does the United States tariff have under HS 6903.10?
The United States tariff splits HS 6903.10 (other refractory ceramic goods (for example, retorts, crucibles, muffles, nozzles, plugs, supports, cupels, tubes, pipes, sheaths, rods and slide gates), other than those of siliceous fossil meals or of similar siliceous earths, containing by weight more than 50 % of free carbon) into 1 national line: 6903.10.00.00 (containing by weight more than 50 percent of free carbon).
What is the duty on HS 6903.10 in the United States?
Every United States line under 6903.10 is free of general (MFN) duty.
Sources and updates
The tariff lines for the United States come from border.bot release 1 (edition 2026HTSRev21), read from the publisher’s files, and have been live since 9 October 2026.
The duty rates for the United States come from border.bot release 1 (edition 2026HTSRev21), read from the publisher’s files, and have been live since 9 October 2026.
The trade programmes for the United States come from border.bot release 1 (edition 2026HTSRev21), read from the publisher’s files, and have been live since 9 October 2026.
This page was last updated on 9 October 2026.
Guidance from published tariff data, not a binding ruling. For a decision customs must follow, apply to the destination’s customs authority for a binding tariff ruling.
Official source files: