2521 00 00 00

Code

2521 00 00 00

Type

10-digit tariff line

Duty rate

Free

Unit

t

Classification rulings (U.S. Customs, CROSS)

• f88860 · 2000-11-22 — ssuming that the calcium carbonate within the product is naturally derived, that no other chemicals or minerals are added to the product and that no chemical reactions take place when the calcium carbonate is combined with the water. For purposes of this ruling, we are assuming that the product is simply natural calcium carbonate derived from the earth and that the water is merely a carrier. In a telephone conversation with this office you stated your belief that these assumptions represent th

  A sample of the product was submitted with your ruling request. This sample was sent to our Customs laboratory for analysis. Our laboratory has now completed its analysis of the sample and determined that the merchandise is a slurry consisting of calcium carbonate in water. The laboratory was unable to verify the derivation of the calcium carbonate. For purposes of this ruling, we are assuming that the calcium carbonate within the product is naturally derived, that no other chemicals or minerals are added to the product and that no chemical reactions take place when the calcium carbonate is…

• 2501 00 00 00 — Salt (including table salt and denatured salt) and pure sodium chloride, whether or not in aqueous solution or containing added anti-caking or free-flowing…
• 2502 00 00 00 — Unroasted iron pyrites
• 25030000 — Sulfur of all kinds, other than sublimed sulfur, precipitated sulfur and colloidal sulfur
• 2504 — Natural graphite:
• 2505 — Natural sands of all kinds, whether or not colored, other than metalbearing sands of chapter 26:
• 2506 — Quartz (other than natural sands); quartzite, whether or not roughly trimmed or merely cut, by sawing or otherwise, into blocks or slabs of a rectangular…
• 2507 00 00 00 — Kaolin and other kaolinic clays, whether or not calcined
• 2508 — Other clays (not including expanded clays of heading 6806), andalusite, kyanite and sillimanite, whether or not calcined; mullite; chamotte or dinas earths:
• 250900 — Chalk:
• 2510 — Natural calcium phosphates, natural aluminum calcium phosphates and phosphatic chalk:
• 2511 — Natural barium sulfate (barytes); natural barium carbonate (witherite), whether or not calcined, other than barium oxide of heading 2816:
• 2512 00 00 00 — Siliceous fossil meals (for example, kieselguhr, tripolite and diatomite) and similar siliceous earths, whether or not calcined, of an apparent specific…
• 2513 — Pumice; emery; natural corundum, natural garnet and other natural abrasives, whether or not heat-treated:
• 2514 00 00 00 — Slate, whether or not roughly trimmed or merely cut, by sawing or otherwise, into blocks or slabs of a rectangular (including square) shape
• 2515 — Marble, travertine and other calcareous monumental or building stone of an apparent specific gravity of 2.5 or more, and alabaster, whether or not roughly…
• 2516 — Granite, porphyry, basalt, sandstone and other monumental or building stone, whether or not roughly trimmed or merely cut, by sawing or otherwise, into blocks…
• 2517 — Pebbles, gravel, broken or crushed stone, of a kind commonly used for concrete aggregates, for road metalling, or for railway or other ballast; shingle and…
• 2518 — Dolomite, whether or not calcined or sintered, including dolomite roughly trimmed or merely cut, by sawing or otherwise, into blocks or slabs of a rectangular…
• 2519 — Natural magnesium carbonate (magnesite); fused magnesia; dead-burned (sintered) magnesia, whether or not containing small quantities of other oxides added…
• 2520 — Gypsum; anhydrite; plasters (consisting of calcined gypsum or calcium sulfate) whether or not colored, with or without small quantities of accelerators or…
• 2522 — Quicklime, slaked lime and hydraulic lime, other than calcium oxide and hydroxide of heading 2825:
• 2523 — Portland cement, aluminous cement, slag cement, supersulfate cement and similar hydraulic cements, whether or not colored or in the form of clinkers:
• 2524 — Asbestos:
• 2525 — Mica, including splittings; mica waste:
• 2526 — Natural steatite, whether or not roughly trimmed or merely cut, by sawing or otherwise, into blocks or slabs of a rectangular (including square) shape; talc:
• 25280000 — Natural borates and concentrates thereof (whether or not calcined), but not including borates separated from natural brine; natural boric acid containing not…
• 2529 — Feldspar; leucite, nepheline and nepheline syenite; fluorspar:
• 2530 — Mineral substances not elsewhere specified or included:

• 2521 00 00 00 — ТН ВЭД ЕАЭС: Флюс известняковый; известняк и прочий известняковый камень, используемый для изготовления извести или цемента
• 2521 — EU CN/TARIC: Limestone flux; limestone and other calcareous stone, of a kind used for the manufacture of lime or cement

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