AD ORDER China A-570-875 (AD)

U.S. Antidumping Duty on Non-Malleable Cast Iron Pipe Fittings from China (A-570-875)

This is an educational summary — NOT a scope determination or filing advice. It does not decide whether your specific goods are covered. Always verify against the latest U.S. Commerce and CBP instructions.

Non-malleable cast iron pipe fittings from China may fall within the U.S. antidumping (AD) duty order under case number A-570-875.

Case snapshot

Product	Non-Malleable Cast Iron Pipe Fittings
Country	China
Case type	AD
Case number(s)	A-570-875 (AD)
Status	Active / continued
Scope control	Commerce written scope language
HTS role	Reference / screening only
Rate note	Varies by exporter/producer and administrative review

Key dates

A-570-875 (AD)	Federal Register: 2026-04 FR notice 2026-06418 (Opportunity to Request Review)
Status as of	Active — 2026-07-03
Expiration	No fixed expiration date. AD/CVD orders remain in place subject to five-year sunset reviews, and stay active unless revoked after Commerce/ITC review or other Commerce action.
Last checked by ETDETA	2026-07-03

Effective/entry-specific deposit and liquidation treatment depends on Commerce and CBP instructions, not only the publication date.

There is a U.S. antidumping (AD) duty order on non-malleable cast iron pipe fittings from China under case number A-570-875. This is an AD order only; no countervailing (CVD) order is identified here. Importers should verify whether their specific fittings may fall within the written scope.

Scope — simplified screening examples, not full legal scope

The official written scope controls. The examples below are screening references only.

Products that may be covered (examples)

•May include finished and unfinished non-malleable cast iron (gray iron) pipe fittings with an inside diameter from about 1/4 inch to 6 inches
•May include elbows, ells, tees, crosses, and reducers
•May include flanged fittings
•May include threaded or unthreaded fittings regardless of industry or proprietary specification
•May include fittings produced to ASTM A-126 and ASME B.16.4 specifications, threaded to ASME B1.20.1
•May include certain ductile iron fittings sharing the same physical characteristics and produced to ASME B.16.3/B.16.4 or ASTM A-395, threaded to ASME B1.20.1 and UL certified

Products that may require separate review or may fall outside this order

?Cast iron soil pipe fittings may be outside the order
?Grooved fittings or grooved couplings may be outside the order
?Ductile iron fittings with mechanical joint (MJ) ends produced to AWWA C110 or C153 may be outside
?Ductile iron fittings with push-on (PO) or flanged ends produced to AWWA C110 or C153 may be outside
?Fittings with inside diameters outside the roughly 1/4-inch to 6-inch range may be outside

Scope control: HTS codes such as those in heading 7307 are screening references only; Commerce's written scope language is dispositive as to coverage, and finished, unfinished, or unassembled items may still be covered depending on that scope.

Who it affects

This typically matters for importers of gray/cast iron plumbing and piping fittings from China, as well as certain UL-certified ductile iron fittings with matching physical characteristics, especially in the 1/4-inch to 6-inch inside diameter range.

What the duty means

AD duties are collected as cash deposits at entry, and rates vary by exporter/producer and administrative review and can be high; a 0% cash-deposit rate is NOT an exemption, and the order still applies and must be declared. This order is AD only.

Importer checklist — how to assess your risk

☐Gather the commercial invoice description and confirm it matches the actual fittings.
☐Collect product photos and spec sheets showing type (elbow, tee, cross, reducer, flanged, etc.).
☐Confirm material composition — gray/non-malleable cast iron versus ductile iron versus other.
☐Measure inside diameter to see whether it falls in the roughly 1/4-inch to 6-inch range.
☐Document intended use and any applicable specifications (ASTM, ASME, AWWA) and UL certification.
☐Identify and record both the manufacturer/producer and the exporter, and the specific producer/exporter combination.
☐Verify the HTS classification for screening, remembering the written scope controls coverage.
☐Confirm scope questions with a licensed customs broker or trade counsel; do not rely only on supplier statements.
☐Verify the applicable cash-deposit rate against current Commerce review results and CBP AD/CVD messages before filing.

Risks to watch

⚠Circumvention or transshipment findings for goods routed through third countries to disguise Chinese origin.
⚠Scope inquiries where fittings sit near boundaries (e.g., ductile iron, soil pipe, grooved products).
⚠Applying the wrong exporter/producer combination and thus an incorrect cash-deposit rate.
⚠Misdeclaration exposure, including penalties and retroactive duty liability.

The same type of product may be subject to trade orders from more than one country, so each country of origin should be reviewed on its own facts without any attempt to evade duties.

FAQ

Is there antidumping duty on non-malleable cast iron pipe fittings from China?

There is a U.S. antidumping (AD) duty order on non-malleable cast iron pipe fittings from China under case number A-570-875. Whether your specific goods fall within it depends on Commerce's written scope, so importers should verify before entry.

Does a 0% deposit rate mean no duty?

No. A 0% cash-deposit rate is not an exemption. The order under A-570-875 still applies, entries must be declared, and rates can change through administrative review.

Are parts or unassembled fittings covered?

They may still be covered. The scope references both finished and unfinished non-malleable cast iron pipe fittings, so unfinished or component items may fall within scope depending on Commerce's written scope language — verify with a licensed broker.

Possible risk

Risk signal: Higher concern if the goods are non-malleable (gray) cast iron pipe fittings of Chinese origin in the roughly 1/4-inch to 6-inch inside-diameter range; separate review is needed for ductile iron variants, soil pipe fittings, grooved products, unfinished parts, and third-country processing.

Bottom line: Non-malleable cast iron pipe fittings from China may be covered by AD case A-570-875; confirm scope, origin, exporter/producer identity, and current cash-deposit rates before entry.

Not a scope determination or filing advice — confirm coverage and current deposit rates with a licensed customs broker and the latest Commerce/CBP instructions before entry.

Official sources

These links are for source verification. Confirm the latest applicable rate and instructions with Commerce/CBP before entry.

· Federal Register notice (2026-04 FR notice 2026-06418 (Opportunity to Request Review))
· Commerce ACCESS — AD/CVD proceedings & scope rulings
· CBP ACE AD/CVD case search & messages
· USITC sunset/injury reviews
HTS codes are provided for reference/screening only.

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Educational summary of a public U.S. Department of Commerce AD/CVD order — not legal advice, a customs broker opinion, or a scope determination. Whether specific goods fall within an order's scope must be confirmed with a licensed customs broker and the latest Commerce/CBP notices.

Last updated: 2026-07-18