Enter a 10-digit HTS line, the country of origin and the entry date to see the base rate, 301 / 232 / 201 / 338 additional duties, AD/CVD deposits, PGA flags and other requirements, with a confirmed total and a maximum.
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China: Column 1 rate + 12.5% additional
8-digit subheading 2811.19.61 is on L3
Cash deposits follow the company-specific rate (ACE case module). Coverage depends on each order's scope. The table below lists case numbers, status and the all-others rate. The all-others deposit rate is counted in the maximum exposure, not in the confirmed total.
| Case | Type | Product | Status | All-others rate | Deposit status | Determination |
|---|---|---|---|---|---|---|
| Same investigation: A570045 / C570046 · AD 167.58% + CVD 2.4% = 169.98% counted in the maximum | ||||||
| A570045 Matched on 2811.19.6190 | AD | 1-Hydroxyethylidene-1, 1-Diphosphonic Acid | Order in place | 167.58% | Deposits in effect | 91 FR 23956 (2026-05-04) review opportunity ACE rate eff. 2017-05-18 |
| C570046 Matched on 2811.19.6190 | CVD | 1-Hydroxyethylidene-1, 1-Diphosphonic Acid | Order in place | 2.40% | Deposits in effect | 91 FR 23956 (2026-05-04) review opportunity ACE rate eff. 2017-05-11 |
may-be-required only · ACE valid to 2039-12-31
no entered value: rates and limits only
Period 2026-10-01 – 2027-09-30 · 91 FR 48398 (2026-07-31, Doc. 2026-15530, FY2027)
Chinese origin: the UFLPA presumption is triggered through the supply chain (Xinjiang inputs / Entity List), not by country of origin; the origins with the most CBP denials are MY / VN / TH.
Chinese origin + priority sector: prepare applicability-review / exception-request documentation | Statutory high-priority sector. Hoshine is listed under section (i), so Hoshine silicon at any tier triggers the presumption. Trace quartz → metallurgical silicon → polysilicon → ingot → wafer → cell → module.
File a positive TSCA certification (complies with all TSCA rules / orders) or a negative certification (pesticides / food / drugs / cosmetics / nuclear material) in ACE when importing chemical substances or mixtures. The EP7 flag is advisory only and the certification is the importer's responsibility. Finished articles are generally exempt unless a specific rule applies. PFAS: one-time reporting of PFAS and PFAS-containing articles imported since 2011.
2025–26: The PFAS reporting window is postponed to 2027-01-31 or 60 days after the final rule (2026-04-13); the 2025-11 proposal to exempt imported articles and ≤0.1% content is not final
Form 357 permit (Schedules I / II and narcotic III–V), Form 236 declaration (non-narcotic III–V, ≥15 days before release), Form 486 (List I / II chemicals above threshold, ≥15 days)
2025–26: DE3 regulated-machine flag rejects entries from 2026-05-02
Schedule 1: import only from States Parties, 45-day advance notice to BIS, annual report. Schedule 2: import from non-States Parties prohibited, annual report above thresholds. Schedule 3: annual report.
Before arrival: Confirm the substance is on the TSCA Inventory / complies with §5 / §6 orders; identify negative-certification categories (pesticides, food, drugs, cosmetics, nuclear material)
At entry: TSCA positive / negative certification in the PGA message set (or paper / DIS), with the certifier's name, e-mail and phone
Disclaim: EP7: A, B (§13 only, not Title VI); EP8 cannot be disclaimed
If missing: Refused admission; TSCA penalties
https://www.epa.gov/tsca-import-export-requirements/tsca-requirements-importing-chemicals · Verification H
Before arrival: DEA importer registration; DEA-357 permit (Schedules I / II and narcotic III–V), DEA-236 declaration (non-narcotic III–V), DEA-486 / 486A (List I / II, 15 days in advance) — via the Diversion portal; DEA transaction ID
At entry: DEA message set (mandatory since 2017-08-01): registration number (2 letters + 7 digits), permit / declaration transaction ID; arrival date within the permit validity
Disclaim: DE1: A (non-controlled / not listed; exempt chemical mixtures, acetone / MEK / toluene quarterly reporters) [S]
If missing: Entry rejected / seizure; CSA penalties
2025–26: IG v2.7 (2026-04-01)TBD_
https://www.deadiversion.usdoj.gov/imp_exp/imp-exp.html · Verification M
| A | B | Relation | Rule | Basis |
|---|---|---|---|---|
| FL301 | BASE | stack | Additive to Column 1; EU/TW net-of-MFN to 10%, JP/KR/CH to 12.5% | HTSUS Rev.21 note 52(a), 52(k) |
| FL301 | CN301 | stack | Stacks with China 301 | note 52(a) |
| FL301 | ADCVD | stack | AD/CVD continue to apply | note 52(a) |
| FL301 | FTA | note | Preference claims do not exempt, except USMCA duty-free (9903.05.93/.94) and CAFTA-DR textiles (9903.05.95) | note 52(a), (g)–(i) |
| FL301 | CH98 | note | Chapter 98 exempt except 9802.00.40/.50/.60 (value of repairs) and 9802.00.80 (value less U.S. content) | note 52(a) |
| CN301 | BASE | stack | Additive to Column 1 | note 20(a)/(c)/(e)/(g)/(r); note 31(a) |
| CN301 | ADCVD | stack | AD/CVD continue | note 20 / 31 |
| CN301 | FTA | note | Preference claims do not exempt | note 20 / note 31(a) |
| CN301 | CH98 | note | Chapter 98 exempt except 9802.00.40/.50/.60/.80 | note 20 paragraphs / note 31(a) |
| CN301 | CN301 | note | Four-year-review products removed from note 20 lists (no double 25%); chassis and STS cranes stack with maritime 301 from 2026-11-10 | Rev.21 note 20 / 31 comparison; note 31(k)/(l) |
| ADCVD | BASE | stack | Cash deposits (company-specific) in addition to all Chapter 99 duties; not drawback-eligible | 19 CFR 351; the relevant notes |
Compiled from the HTSUS, the Federal Register, CBP CSMS messages and ACE reports as a classification and compliance reference, not legal advice; file according to current CBP/ACE guidance.