7019.90.51/Basalt Fiber Continuous Roving/Japan

Basalt Fiber Continuous Roving from Japan

Continuous basalt fiber roving derived from melted basalt rock, used in high-temperature composites. HTS 7019.90.51 includes such fused silica-based fibers per Chapter 70 note; treated as glass fibers despite rock origin. Environmentally friendly alternative to E-glass.

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

• Include geological source certification and silica analysis; declare melting temperature confirming fused silica process; differentiate from slag wool products