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§ HTS 2934.99.03.00 · US import duty

2-Acetylbenzo(b)thiophene; 3-Methylene-7-(2-phenoxyacetamido)- cephan-4-carboxylic acid, p-nitrobenzyl ester, 1-oxide; and Naphth[1,2-d]-[1,2,3]-oxadiazole-5-sulfonic acid and its sodium salt

§ TODAY'S ANSWER
From China: 0% · $0.00 on a $10K shipment
From China this code is taxed at the MFN base rate only — no Chapter 99 overlay applies today.
See full breakdown ↓ Compare other origins ↓
Chapter
29
MFN base rate
Free
Active overlays
0
Scope
MFN base only

AD/CVD not evaluated. CBP determines binding classification at entry. Methodology →

Nucleic acids and their salts, whether or not chemically defined; other heterocyclic compounds: · Compounds containing in the structure a phenothiazine ring-system (whether or not hydrogenated), not further fused: · Other: · 2-Acetylbenzo(b)thiophene; 3-Methylene-7-(2-phenoxyacetamido)- cephan-4-carboxylic acid, p-nitrobenzyl ester, 1-oxide; and Naphth[1,2-d]-[1,2,3]-oxadiazole-5-sulfonic acid and its sodium salt
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HTS CODE
2934.99.03.00
General (MFN)Free
Other (Column 2)15.4¢/kg + 52%
§99 overlays0

Base tariff columnsBase tariff columns

Column rates from the USITC HTS export. The column that applies depends on origin and trade-program eligibility.

General (MFN)Free
Special—
Other (Column 2)15.4¢/kg + 52%
Unitskg

Official source: USITC Harmonized Tariff Schedule. Duty at entry is determined by US Customs and Border Protection (CBP). AD/CVD watch signals are surfaced, but cash deposit rates and product-specific exclusions still require separate review.

Chapter 99 overlaysChapter 99 overlays

No Chapter 99 overlays are currently linked to this HS code.

§ DUTY BREAKDOWNDuty breakdown

Duty ledger below is calculated on a $10,000 customs value. Fees, AD/CVD, and exclusions are not included here.

China (CN)
Total 0% · $0.00
Duty breakdown Rate Amount Source
Base dutyBase 0% $0.00 HTS General rate
Status: exact Methodology: tariff-ledger-v1 Data: d4c9e6f79bac8e84

§ CLASSIFICATION WATCH-OUTSClassification watch-outs

These sibling HTS entries share the same parent but differ in duty rate or Chapter 99 coverage. They are review prompts, not classification recommendations.

  • 2934.99.05.00
    5-Amino-3-phenyl-1,2,4-thiadiazole (3-Phenyl-5-amino-1,2,4-thiadiazole); 2-Hydroxybenzoxazole (Benzoxazolone); 4-Phenylmorpholine; 1,9-Thianthrenedicarboxylic acid; and Thioxanthene-9-one (Thioxanthone)
    Base rate: 5.8% Chapter 99: 0 Base rate differs from selected HTS
  • 2934.99.06.00
    7-Nitronaphth[1,2]oxadiazole-5-sulfonic acid and its salts
    Base rate: 6.5% Chapter 99: 0 Base rate differs from selected HTS
  • 2934.99.08.00
    2,5-Diphenyloxazole
    Base rate: 6.5% Chapter 99: 0 Base rate differs from selected HTS
  • 2934.99.47.00
    Drugs
    Base rate: 3.7% Chapter 99: 0 Base rate differs from selected HTS

Sample duty by originSample duty by origin

Illustrative calculation at USD 10,000 customs value, standard (non-preferential) claim. Chapter 99 additional duties applied where status is active.

Origin Base rate Chapter 99 Total rate Duty (USD)
China (CN) 0% 0% 0% $0.00
Vietnam (VN) 0% 0% 0% $0.00
Mexico (MX) 0% 0% 0% $0.00
India (IN) 0% 0% 0% $0.00
South Korea (KR) 0% 0% 0% $0.00

§ RELATED ENTRIESRelated HS codes in the same chapter

Adjacent lines under the same HTS chapter. Pick the most specific match for your product.

§ RECENT CHANGESRecent US tariff policy notices

The 3 most recent Federal Register tariff notices in the Duty database. See the Changes timeline for the full list.

See all Federal Register actions →

Maintained by last verified 2026-04-27T08:19:59Z