Proposal to amend five magnesia fob China assessments

Fastmarkets proposes to amend five of its magnesia dead burned, calcined and fused FOB China price assessments from weekly publication to monthly.

The move to monthly publication will allow the assessments to better reflect the liquidity changes in the market.

The proposed change applies to the following price assessments:

MB-MAG-0001 Magnesia, dead burned, 94-95% MgO, lump, fob China, $/tonne
Quality: Dead-burned 94-95% MgO lump, bulk
Quantity: Minimum 1,000 tonnes
Location: fob China
Timing: Spot
Unit: $/tonne
Publication: Monthly. Second Tuesday of each month, 4pm London time

MB-MAG-0004 Magnesia, calcined, 90-92% MgO, fob China, $/tonne 
Quality: Calcined 90-92% MgO
Quantity: minimum 1,000 tonnes
Location: fob China
Timing: Spot
Unit: $/tonne
Publication: Monthly. Second Tuesday of each month, 4pm London time

MB-MAG-0006 Magnesia, calcined, 94% MgO lump, fob China, $/tonne 
Quality: Calcined 94% MgO lump, bulk
Quantity: Min 1,000 tonnes
Location: fob China
Timing: Spot
Unit: $/tonne
Publication: Monthly. Second Tuesday of each month, 4pm London time

MB-MAG-0008 Magnesia, fused, 97% MgO, Ca:Si 1:1, lump, fob China, $/tonne 
Quality: Fused 97% MgO, 1:1 Ca:Si, bulk
Quantity: Min 1,000 tonnes
Location: fob China
Timing: Spot
Unit: $/tonne
Publication: Monthly. Second Tuesday of each month, 4pm London time

MB-MAG-0010 Magnesia, fused, 96% MgO lump,fob China, $/tonne 
Quality: Fused 96% MgO lump, bulk
Quantity: Min 1,000 tonnes
Location: fob China
Timing: Spot
Unit: $/tonne
Publication: Monthly. Second Tuesday of each month, 4pm London time

These prices are a part of the Fastmarkets industrial minerals package.

Fastmarkets’ other Chinese magnesia prices will not be changed as part of this proposal.

The consultation period for this proposed amendment starts on Wednesday August 28 and will end on September 24. The amendment will then take place, subject to market feedback, on October 8.

To provide feedback or if you would like to provide price information by becoming a data submitter to this price assessment, please contact Nina Hu by email at: pricing@fastmarkets.com. Please add the subject heading “FAO: Nina Hu, re: Magnesia FOB China.”

Please indicate if comments are confidential. Fastmarkets will consider all comments received and will make comments not marked as confidential available upon request.

To see all Fastmarkets pricing methodology and specification documents, go to https://www.fastmarkets.com/methodology.

What to read next
Fastmarkets has moved the frequency of the price assessments of MB-ILM-0004 Ilmenite concentrate, 47-49% TiO2, cif China, $/tonne, MB-RUT-0002 Rutile 95% TiO2 min, bagged, fob Australia, $/tonne and MB-RUT-0001 Rutile 95% TiO2 min, large volumes for pigment, fob Australia, $/tonne to monthly from fortnightly, effective March 5.
Fastmarkets wishes to clarify that it will not publish its assessments for MB-STE-0782 Steel billet export, fob ports Iran, $/tonne and MB-STE-0781 Steel slab export, fob ports Iran, $/tonne for the week of March 2-8, 2026 due to a public holiday in Iran.
Fastmarkets launches two, twice-weekly, price assessments to reflect the spot price of antimony metal sold on a CIF Rotterdam/Antwerp basis on Wednesday March 4. After a consultation, Fastmarkets has launched a twice-weekly price assessment for antimony metal trioxide grade, CIF Rotterdam/Antwerp, and a corresponding twice-weekly price assessment for antimony metal MMTA standard grade II, CIF Rotterdam/Antwerp. […]
Fastmarkets has corrected its assessment for AG-TLW-0001 Bleachable Fancy Tallow - Packer Chicago (cts/lb) published on February 27.
The publication of Fastmarkets’ MB-STS-0332 Stainless steel cold-rolled sheet, 2mm, grade 316, transaction domestic, delivered North Europe, €/tonne averages between August 2025 and February 2026 was delayed because of a procedural lapse.
The publication of Fastmarkets’ assessments for MB-STE-0093 Steel scrap auto bundle scrap domestic, delivered Turkey and MB-STE-0094 Steel scrap melting scrap from shipbreaking domestic, delivered Turkey on March 2 were delayed because of a reporter error. Fastmarkets’ pricing database has been updated.