HS Code 2519Natural magnesium carbonate (magnesite); fused magnesia; dead-burned (sintered) magnesia, whether or not containing small quantities of other oxides added before sintering; magnesium oxide, pure or not
2 six-digit codes · Heading 19 of 29 in Chapter 25 · World Customs Organization Harmonized System
HS code 2519 covers natural magnesite and the magnesia made from it. This page shows how to pick between the two subheadings and where to find the shipment records.
Heading 2519 splits exactly two ways. Goods answering to “Natural magnesium carbonate (magnesite); fused magnesia; dead-burned (sintered) magnesia, whether or not containing small quantities of other oxides added before sintering; magnesium oxide, pure or not” classify either at 251910 or at 251990, and the wording in the table below is the whole of what separates them. The heading is number 19 of 29 in Chapter 25, Salt; sulphur; earths, stone; plastering materials, lime and cement, which runs to 67 six-digit codes in all.
Six-digit codes under heading 2519
| HS Code | Import–export description |
|---|---|
| 251910 | Magnesium carbonate (magnesite); natural |
| 251990 | Magnesia, fused or dead-burned (sintered); whether or not containing small quantities of other oxides added before sintering, other magnesium oxide, whether or not pure, (not natural magnesium carbonate) |
What HS code 2519 covers
Magnesite is a natural rock made of magnesium carbonate. When it is heated hard, it becomes magnesia, which is the common name for magnesium oxide.
The heading groups four kinds of goods. These are natural magnesium carbonate, fused magnesia, dead-burned magnesia (also called sintered magnesia), and magnesium oxide, pure or not. Some customs systems write the same heading as HSN 2519. The digits are the same.
Rock, earth and raw mineral goods sit side by side there, so a close read of the wording matters.
251910 vs 251990: which subheading applies
The test is simple. Is the good the raw rock, or has it been processed?
Use the list below as a first check. Your customs broker has the final say.
- 251910: natural magnesium carbonate (magnesite). This is the rock in its natural form.
- It is the catch-all for anything that is not natural magnesium carbonate.
What is the HS code for dead-burned magnesia?
So does sintered magnesia, because the two names describe the same thing. Fused magnesia also goes under 251990.
Small amounts of other oxides are sometimes added before sintering. The wording of the code allows this. Magnesia with a few added oxides stays in 251990.
The code says "whether or not pure", so purity does not move the goods to another subheading. The only question is whether the good is natural magnesium carbonate. If it is, use 251910. If not, use 251990.
Is magnesite classified under 2519 or 2518?
Magnesite is classified under 2519. Dolomite is a different mineral and belongs to [HS 2518 dolomite](/hs-codes/25/2518), even when it is calcined or sintered. Do not mix the two because both are used in similar industries.
Some other nearby headings can cause doubt as well. [HS 2530 mineral substances n.e.s.](/hs-codes/25/2530) is for minerals that no other heading names, so it is a last resort. Talc and steatite have their own heading, [HS 2526 talc and steatite](/hs-codes/25/2526).
If you are still unsure, run the product description through the [HS code classifier](/hs-classifier). Duty rates are not shown on this page. They differ by country, so check them with the customs office of the country you ship to.
Who imports and exports magnesite and magnesia
EximDataX shows shipment-level import and export records from official customs sources. Coverage: 43 direct customs feeds plus 184 mirror-derived countries. Named buyers and named suppliers are available in 38 of the 43 direct markets.
Most markets refresh weekly and some refresh daily. You can search by HS code to see who imports and exports a product, and book a free demo.
Start with the code you picked above. Open the [magnesite import data](/import-data) or [magnesia export data](/export-data) pages. To find companies, go to [find magnesite buyers](/buyer-data) or [find magnesia suppliers](/supplier-data). Then [Book a free demo](/book-demo) to see the records for your own product.
Nearby headings in Chapter 25
- 2513Pumice stone; emery; natural corundum, natural garnet and other natural…2 codes
- 2514Slate, whether or not roughly trimmed or merely cut, by sawing or otherwise…1 code
- 2515Marble, travertine, ecaussine and other calcareous stone; of an apparent…3 codes
- 2516Granite, porphyry, basalt, sandstone, other monumental and building stone…4 codes
- 2517Pebbles, gravel, crushed stone for concrete aggregates for road or railway…5 codes
- 2518Dolomite, whether or not calcined or sintered, including dolomite roughly…2 codes
- 2520Gypsum; anhydrite; plasters (consisting of calcined gypsum or calcium…2 codes
- 2521Limestone flux; limestone and other calcareous stone, of a kind used for the…1 code
- 2522Quicklime, slaked lime and hydraulic lime; other than calcium oxide and…3 codes
- 2523Portland cement, aluminous cement (ciment fondu), slag cement, supersulphate…5 codes
- 2524Asbestos2 codes
- 2525Mica, including splittings; mica waste3 codes
Who ships under 2519?
EximDataX tracks the live import–export records filed under this heading and the 2 codes beneath it: named buyers, suppliers, quantities and values from official customs feeds.
Section V: Mineral Products, chapters 25–27.
HS Code 2519: common questions
What is the HS code for magnesite?
It sits in heading 2519.
What is the HS code for dead-burned or sintered magnesia?
Fused magnesia goes there too.
What is the HS code for magnesium oxide?
Only natural magnesium carbonate is left out of that code.
What is the difference between 251910 and 251990?
251910 is natural magnesium carbonate, the raw rock.
Is dolomite classified under 2519?
No. Dolomite has its own heading, 2518. Heading 2519 is for magnesite and magnesia.
How can I find importers and exporters of magnesite?
First confirm the six-digit code, usually 251910 for the natural rock. Then open the import data and export data pages to look at the shipment records.
See what your buyers are buying.Then decide.
Everything we show you comes from official customs filings — records, not claims. 30 minutes. Your shipment. Your HS code. Real platform. If you don’t see something new about your market by the end of the call, we walk away. No follow-ups.