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7002.39.00.90/Optical Fiber Preform Glass Tube/Japan

Optical Fiber Preform Glass Tube from Japan

Specialty low-OH fused silica tubing for optical fiber preform overcladding, unworked 25mm OD. Technically fused silica but classified 7002.39.00.90 when in tube form for fiber production.

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

• OH content <1ppm certification critical for fiber optics

• Cleanroom packaging required; contamination voids specs