3507.90.70.00/Cellulase Laundry Detergent Additive/Japan

Cellulase Laundry Detergent Additive from Japan

Cellulase enzymes enhance laundry detergents by removing cotton fuzz and color brightening. HTS 3507.90.70.00 covers this as other prepared enzymes, not as washing preparations of Chapter 34.

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 low surfactant content (<10%) to avoid Chapter 34 detergent classification

• Specify 'pure enzyme concentrate' vs formulated detergent on commercial invoice

• Test for hardening per exclusion to rule out 3913 proteins