Correction to Indonesia, Vietnam, India alumina FOB inferred indices on September 2-9

Fastmarkets has corrected its MB-ALU-0018 alumina index inferred, fob India, $/tonne; MB-ALU-0019 alumina index inferred, fob Indonesia, $/tonne; and MB-ALU-0020 alumina index inferred, fob Vietnam, $/tonne, which were published incorrectly from September 2 to September 9.

The assessments were amended due to a back-end calculation error.

MB-ALU-0018 – Alumina index inferred, fob India, $/tonne

Published in error as $499.66 per tonne on September 2. This has now been corrected to $531.66 per tonne.
Published in error as $500.54 per tonne on September 3. This has now been corrected to $532.54 per tonne.
Published in error as $495.81 per tonne on September 4. This has now been corrected to $527.81 per tonne.
Published in error as $498.63 per tonne on September 5. This has now been corrected to $530.63 per tonne.
Published in error as $503.85 per tonne on September 6. This has now been corrected to $535.85 per tonne.
Published in error as $501.82 per tonne on September 9. This has now been corrected to $533.82 per tonne.

MB-ALU-0019 – Alumina index inferred, fob Indonesia, $/tonne

Published in error as $507.66 per tonne on September 2. This has now been corrected to $523.66 per tonne.
Published in error as $508.54 per tonne on September 3. This has now been corrected to $524.54 per tonne.
Published in error as $503.81 per tonne on September 4. This has now been corrected to $519.81 per tonne.
Published in error as $506.63 per tonne on September 5. This has now been corrected to $522.63 per tonne.
Published in error as $511.85 per tonne on September 6. This has now been corrected to $527.85 per tonne.
Published in error as $509.82 per tonne on September 9. This has now been corrected to $525.82 per tonne.

MB-ALU-0020 Alumina index inferred, fob Vietnam, $/tonne

Published in error as $502.66 per tonne on September 2. This has now been corrected to $528.66 per tonne.
Published in error as $503.54 per tonne on September 3. This has now been corrected to $529.54 per tonne.
Published in error as $498.81 per tonne on September 4. This has now been corrected to $524.81 per tonne.
Published in error as $501.63 per tonne on September 5. This has now been corrected to $527.63 per tonne.
Published in error as $506.85 per tonne on September 6. This has now been corrected to $532.85 per tonne.
Published in error as $504.82 per tonne on September 9. This has now been corrected to $530.82 per tonne.

Fastmarkets’ pricing database has been updated to reflect these changes.

These prices are part of the Fastmarkets base metals package.

For more information or to provide feedback on this correction notice or if you would like to provide price information by becoming a data submitter to these indices, please contact Laura Roberts or Justin Yang by email at: pricing@fastmarkets.com. Please add the subject heading “FAO: Laura Roberts, Justin Yang, re: Alumina inferred indices, $/tonne.”

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 published its assessment of the MB-STE-0232 steel scrap No1 busheling, consumer buying price, delivered mill Chicago, $/gross ton on Thursday April 9, 2026.
Fastmarkets has corrected the rationale for its MB-LI-0033 Lithium hydroxide monohydrate LiOH.H2O 56.5% LiOH min, battery grade, spot price cif China, Japan & Korea, which was published incorrectly on Thursday April 9 due to a typo. The published rationale for MB-LI-0033 Lithium hydroxide monohydrate LiOH.H2O 56.5% LiOH min, battery grade, spot price cif China, Japan […]
Fastmarkets launched two new aluminium scrap prices on Thursday, April 9, adding to Fastmarkets’ suite of recycled non-ferrous metals price assessments. The launch will elevate and expand Fastmarkets’ aluminium scrap coverage by including the following grades: Section 232 tariffs and the resulting high aluminium premiums have led to increased costs and rising interest in recycled […]
The European Commission published the first-quarter 2026 Carbon Border Adjustment Mechanism (CBAM) certificate price on Tuesday April 7, applicable to all CBAM-eligible goods imported into the EU in January-March 2026.
The proposal would align the index more closely with physically traded volumes in the region, and enable it to adjust to evolving market conditions. This proposal follows an observed widening of the spread between trader and smelter purchase components of the index and is aligned with a majority of market feedback. Additionally, Fastmarkets seeks feedback […]
The publication of Fastmarkets’ Soymeal CIF US Gulf Barge Hipro, Soymeal CIF US Gulf Barge Hipro Premium, Soymeal FOB US Gulf Barge Hipro and Soymeal FOB US Gulf Barge Hipro Premium assessments for April 6 and 7, 2026 was delayed because of a procedure lapse and a system error. Fastmarkets’ pricing database has been updated.