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9001.90.40.00/Calcium Fluoride Unmounted Lens/Japan

Calcium Fluoride Unmounted Lens from Japan

CaF2 lens for excimer lasers and spectroscopy, excellent UV transmission to 130nm. HTS 9001.90.40.00 covers unmounted optical fluoride crystal lens. Deliquescent; requires sealed packaging.

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

• Desiccant packaging mandatory

• VUV transmission curves essential documentation

• Soft material; special handling instructions