6905.90.00/Fired Clay Chimney Liners/Japan

Fired Clay Chimney Liners from Japan

Cylindrical fired clay pipes lining interior chimney flues to protect against heat and corrosion. HTS 6905.90.00 covers these as ceramic constructional goods under the chimney liners provision.

Duty Rate — Japan → United States

12.5%

Rate breakdown

9903.05.4912.5%Section 301 (forced labor) — Japan (col1 rate < 12.5 percent): MFN < 12.5% → total duty capped at 12.5%

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Import Tips

• Document inner diameter and length for customs verification of liner function

• Avoid shipments heated <800°C which are excluded per Chapter note (b)

• Pair with mortar compatibility certs for compliance