AD ORDER China A-570-900 (AD)

U.S. Antidumping Duty on Diamond Sawblades and Parts Thereof from China (A-570-900)

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.

Diamond sawblades and parts thereof from China are covered by U.S. antidumping duty order A-570-900 (AD only).

Case snapshot

Product	Diamond Sawblades and Parts Thereof
Country	China
Case type	AD
Case number(s)	A-570-900 (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-570-900 (AD)	Federal Register: 2025-12 FR notice 2025-22201 (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.

Diamond sawblades and parts thereof imported from the People's Republic of China may fall within the scope of U.S. antidumping duty order A-570-900. This is an antidumping (AD) order only; no countervailing duty case is listed here. Importers should verify whether their specific goods are covered before entry.

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 diamond sawblades used for cutting stone, concrete, or masonry
•May include circular diamond sawblades with diamond-bearing cutting segments
•May include diamond sawblade cores (steel plates/centers designed to hold cutting segments)
•May include diamond sawblade segments (the diamond-bearing cutting portions)
•May include sawblades assembled in a third country using Chinese cores or segments, depending on scope
•May include unfinished or partially assembled diamond sawblades and their parts

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

?Non-diamond cutting blades (e.g., carbide-tipped or abrasive blades) may fall outside the order
?Blades that do not contain diamond cutting media may typically be excluded
?Grinding wheels and non-sawblade abrasive tools may be outside scope
?Wire saws and cutting tools that are not sawblades may typically be excluded
?Finished tools of a materially different type not described in the written scope may fall outside coverage

Scope control: HTS codes are screening references only; Commerce's written scope language controls whether a product is covered, and parts, unfinished, or unassembled diamond sawblades (such as cores and segments) may still be covered depending on the scope.

Who it affects

This typically matters for importers of diamond sawblades, sawblade cores, and cutting segments of Chinese origin, including those used in construction, stone-cutting, and masonry industries, and for goods assembled elsewhere from Chinese parts.

What the duty means

AD cash deposits are collected at the time of entry under A-570-900; rates vary by exporter/producer and by administrative review and can be high. A 0% cash-deposit rate is NOT an exemption — the order still applies and entries must be declared as subject merchandise.

Importer checklist — how to assess your risk

☐Gather the commercial invoice description and confirm it identifies the exact product type
☐Collect product photos and spec sheets showing whether the blade contains diamond cutting media
☐Document the material composition, including cores, segments, and diamond content
☐Identify the intended use (stone, concrete, masonry cutting, etc.)
☐Obtain country-of-origin support, including any third-country assembly using Chinese cores or segments
☐Record the manufacturer and exporter names and confirm the exact producer/exporter combination
☐Determine the HTS classification for screening purposes only
☐Confirm scope coverage with a licensed customs broker or trade counsel rather than relying only on supplier statements
☐Verify the applicable cash-deposit rate against current Commerce results and CBP AD/CVD messages before filing

Risks to watch

⚠Circumvention or transshipment findings for goods routed or assembled through third countries using Chinese cores or segments
⚠Scope inquiries that may clarify whether specific parts or configurations are covered
⚠Applying the wrong exporter/producer combination and therefore the wrong deposit rate
⚠Misdeclaration penalties for failing to declare subject merchandise or declaring an incorrect rate

The same product may be subject to antidumping orders in more than one country, so importers should review each country of origin separately without engaging in any evasion of the order.

FAQ

Is there antidumping duty on diamond sawblades from China?

Yes, diamond sawblades and parts thereof from China may fall within antidumping duty order A-570-900. Whether your specific goods are covered 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 still applies, and the merchandise must be declared as subject to A-570-900; rates can change through administrative reviews.

Are parts or unassembled diamond sawblades covered?

Parts such as cores and cutting segments, and unfinished or unassembled sawblades, may still be covered depending on Commerce's written scope. Importers should confirm the specific configuration with a licensed broker.

Possible risk

Risk signal: Higher concern if the goods are diamond sawblades, cores, or segments of Chinese origin; a separate review is needed for unfinished parts, third-country assembled blades, and blades using Chinese components.

Bottom line: Diamond sawblades and parts thereof from China may be covered by antidumping order A-570-900; confirm scope, origin, exporter/producer identity, and current 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 (2025-12 FR notice 2025-22201 (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: 2026-07-12