Yes, a China-origin slab sold as sintered stone can be subject to U.S. antidumping and countervailing duties if it fits an applicable order’s written scope. A resin-free fired slab must be checked against the ceramic tile orders, not just the quartz surface product orders. The commercial name and an HTS code do not establish an exemption.
For an import decision, review the exact product, origin, manufacturer, exporter and condition at entry. Separate AD/CVD coverage from tariff classification and the 2026 quartz safeguard before estimating the shipment’s duty costs.
Ceramic Tile Orders Are a Separate Check
For China-origin slabs, start by reading A-570-108 and C-570-109. Their ceramic tile scope includes fired mineral articles containing clay with an actual thickness below 3.2 cm, and expressly includes large slabs or panels over 1 m². It does not exclude covered tile because of its end use, area, weight, glazing, absorption, vitrification or backing.
A large countertop slab therefore cannot be screened out just because it is sold as sintered stone, has low absorption or is intended for furniture. Compare its manufacturing process, composition, dimensions and imported construction with the complete scope and any relevant rulings.
The March 2, 2026 continuation notice kept these orders in place, effective February 20, 2026. The current Commerce case pages give the scope and final scope-ruling records. Use the exact product facts; this article does not determine coverage for an individual Funtek SKU.
Which Measures Should a U.S. Importer Review?
Keep each measure on its own line in the broker’s review. Evidence that answers one material condition does not settle the other rows.
| Measure | Coverage check | Entry decision |
|---|---|---|
|
China ceramic tile: A-570-108 / C-570-109 |
Compare fired composition, clay content, actual thickness, form and the complete ceramic scope. Large slabs are expressly included. | No-resin evidence does not screen this order out. Use the selected SKU and current scope/rulings. |
 China quartz surfaces: A-570-084 / C-570-085 |
Check silica by actual weight, resin binder and all imported processing or attachment details. | Use product-specific composition and factory records; do not decide from the commercial name. |
 2026 quartz safeguard: Note 41 |
Check the separate product definition, origin provisions, entry date and applicable quota tier. | For covered goods, first-year additional rates are 25% within quota / 50% above quota; other applicable duties remain separate. |
 Ordinary duty and other applicable measures |
Review the correct HTS classification, origin, entry date and additional measures in force. | Being outside one scope does not establish a zero-duty entry. Broker verifies the current treatment. |
The July 31, 2026 proclamation introduced a separate four-year quartz surface safeguard, effective for the specified entries from August 15, 2026. Its Annex, Note 41(a), includes a resin-binder condition. For covered products and origins, Note 41(e) sets first-year additional rates of 25% within quota and 50% above quota for August 15, 2026–August 14, 2027. These are not total duty rates for a sintered-stone shipment. The 2026 U.S. quartz tariff guide explains the quota and later-year schedule; retain a separate AD/CVD analysis.
Why Resin Binder Matters to the Quartz Orders
A-570-084 and C-570-085 cover certain quartz surface products from China. Their scope describes silica-rich mixtures with a resin binder and requires silica to weigh more than any other individual material. Size alone does not settle coverage: the description includes other dimensions, shapes and fabricated surface forms, including goods attached to cabinets or furniture.
It excludes quarried stone and has a specific crushed-glass exclusion. A sintered-stone trade name is not a general exclusion. The quartz orders were continued in January 2025; use the current case record and instructions rather than treating the 2019 orders as historical.
A fired mineral body and a resin-bound quartz composite have different constructions. That makes a substantiated no-binder statement relevant to the quartz scope. The same statement does not eliminate the separate ceramic tile review.
Connect a No-Resin Statement to the Selected Product
Funtek’s stated position for the full-body/full-color sintered slab bodies addressed in its product information is that no polyester, epoxy, acrylic or other organic polymer is used as the body binder. For the body covered by that declaration, the stated organic resin-binder content is zero. Connect that statement to the model and factory declaration used for the order.
Ask for a signed version identifying the manufacturer, factory address, product codes, sample or test object, applicable production or batch reference, date and signatory. State whether the composition describes the raw batch or the finished fired slab, and where any organic material occurs. A declaration for one family does not automatically describe another SKU.
Distinguish the body from mesh adhesive, backing, surface treatments, processing aids and packaging. Disclose these separately where present; the importer reviews the goods as entered, not just a clean body sample.
Pure Black remains a useful product-selection example. Its current listing identifies a matte black surface, Standard Body and one face, with 6, 9, 12 and 15 mm thickness options. That listing is not a signed resin declaration and does not verify a full-body/full-color family claim. Review the Pure Black product specifications, then request documents matching the selected variant. The silica guide explains why total silica chemistry, crystalline phases and cutting-dust information are different questions.
HTS Classification and AD/CVD Scope Need Separate Answers
The sintered stone HS code guide discusses the fact-specific comparison of headings such as 6907 and 6914. Complete that review, but do not use the chosen heading as an AD/CVD exclusion. Commerce’s ceramic tile scope itself lists possible entries under both headings.
| Question | CBP classification | Commerce AD/CVD scope |
|---|---|---|
|
Decision and authority |
CBP determines the tariff classification of the imported merchandise. | Commerce determines whether the exact product fits an order’s written scope. |
 Evidence and formal route |
Construction, form, dimensions, processing and use; prospective CBP binding classification ruling. | Composition, manufacturing, origin and imported condition; product-specific Commerce scope ruling. |
A CBP classification ruling and a Commerce scope ruling answer different questions.
Commerce’s AD/CVD FAQ explains that the written scope controls even when a tariff number is absent from, or appears in, its convenience list. Use the CBP binding-ruling requirements for prospective classification and Commerce’s scope-ruling guidance for an unresolved order-coverage question.
Prepare a Product File the Broker Can Trace
Keep the product name, dimensions and legal manufacturer identity consistent across technical records and commercial documents. The following six parts make the product coverage of that file clearer.
| Record | What to include | Connection to the shipment |
|---|---|---|
|
Exact product identity |
Commercial name, code, dimensions, thickness, finish, body type and imported condition; slabs, cut panels, countertops or attached goods. | Match the invoice and the exact selected variant. |
 Manufacturer and exporter |
Chinese and English legal names, factory address and identifying registration details; identify exporter separately. | Match the producer/exporter on the entry, not only the seller’s brand. |
|
Finished-product composition |
Weight-based constituents: silica-bearing minerals, clay/kaolin, feldspar, pigments, glass, cement, inorganic fillers and organics. | Explain raw batch versus finished slab; total SiO₂ chemistry versus crystalline phases. |
|
Resin and binder declaration |
Polyester, epoxy, acrylic and other polymers; percentage, purpose and location. Distinguish body, backing, mesh adhesive and treatment. | Dated signed statement names the model, factory and covered production or test object. |
|
Technical and production records |
Current SDS, TDS, relevant ceramic test reports, manufacturing/firing statement, photographs and representative sample. | Trace documents to the actual manufacturer and sample construction. |
|
Prior entry and ruling records |
Shareable redacted entry summaries, prior classifications, laboratory notices, detention/reclassification records and written broker advice. | Useful history; not a guarantee for different goods or a replacement for an applicable ruling. |
A 12 mm sample and a finished panel with bonded backing are not interchangeable descriptions. Check that the sample, laboratory report and declaration cover the imported construction; add the backing and finishing information when they do not.
Use the same identifiers on the packing list and supplier file so the broker can connect each declared product to the shipment. The sourcing process page and global shipping guide explain how to request available Funtek product and packing information.
Cutting or Shipping Through Another Country Does Not Settle Origin
The ceramic tile scope expressly addresses minor processing such as cutting, polishing and finishing in a third country. The quartz scope also addresses certain third-country finishing and fabrication. Do not treat a new shipping point or a cut-to-size invoice as proof that the original order no longer matters.
Give the broker the actual manufacturing locations and processing history, not only the port of export. Origin marking and AD/CVD treatment may require different legal analysis; disclose the sequence rather than drawing a conclusion from the last shipment leg.
Budget Cash Deposits Separately from Final Liability
If the merchandise is subject to an order, have the broker confirm the producer/exporter combination, applicable cases, entry date and current Commerce instructions to CBP. An old published margin or a supplier’s previous entry does not establish the cash deposit for your shipment.
Record ordinary duty, applicable AD and CVD deposits, any applicable safeguard or other additional duties, and non-duty charges separately. Cash deposits are paid at entry; final AD/CVD assessment can change through the administrative process. Commerce’s duty guidance explains this distinction. A landed-cost estimate should identify its assumptions and date instead of presenting an unverified single final rate.
Official scope and measure information reviewed October 7, 2026. For a specific entry, use the actual goods and current instructions with your U.S. customs broker or trade counsel. Ask Funtek for the available documents for the named SKU; a supplier statement is not a Commerce scope ruling.
Request Slab Documents for Your U.S. Import Review
Send the product code or link, dimensions, thickness, finish, quantity and destination. Funtek can organize available product and shipment records for your broker’s scope and entry review, alongside a defined supply quotation.