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HTS tariff line · chapter 31

3103.11.00

Containing by weight 35 percent or more of diphosphorous pentaoxide (P2O5)

Analysis

HTS 3103.11.00 covers containing by weight 35 percent or more of diphosphorous pentaoxide (P2O5) under heading 3103 (mineral or chemical fertilizers, phosphatic).

The normal trade relations rate here is zero, shared by about 100% of the 24 tariff lines in chapter 31, a useful check when a neighbouring dutiable line is a candidate. Duty-free at the general rate does not rule out additional duties under Chapter 99, such as Section 301 or Section 232 measures, which depend on the country of origin.

The other lines in the same group are 3103.19.00 (superphosphates: other, duty-free) and 3103.90.01 (mineral or chemical fertilizers, phosphatic: other, duty-free).

Census statistics map these goods to NAICS 325312 (Phosphatic Fertilizer Manufacturing), an industry of 79 US establishments employing 6,248 people. That concordance is how imports of this line are compared with US output.

All 2 neighbouring lines carry the same duty-free rate, so a borderline choice between them changes the statistics reported, not the duty paid.

The general rate of Free has not changed in any edition of the schedule since Jan 2023.

Neighbouring lines

LineDescriptionGeneral rate
3103.19.00Superphosphates: otherFree
3103.90.01Mineral or chemical fertilizers, phosphatic: otherFree