Correction to alumina index, fob Australia, plus derived prices, on August 18

Fastmarkets has corrected its MB-ALU-0002 alumina index, fob Australia, which was published incorrectly on Monday August 18 due to a back-end calculation error. Fastmarkets has also corrected all the related inferred indices.

On August 18 the following prices were published incorrectly:

MB-ALU-0002 Alumina index, fob Australia, $/tonne was published in error as $369.13 per tonne. This has now been corrected to $369.10 per tonne.

MB-ALU-0019 Alumina index inferred, fob Indonesia, $/tonne was published in error as $378.13 per tonne. This has now been corrected to $378.10 per tonne.

MB-ALU-0018 Alumina index inferred, fob India, $/tonne was published in error as $378.13 per tonne. This has now been corrected to $378.10 per tonne.

MB-ALU-0020 Alumina index inferred, fob Vietnam, $/tonne was published in error as $374.13 per tonne. This has now been corrected to $374.10 per tonne.

MB-ALU-0010 Alumina index inferred, fob Brazil, $/dmt was published in error as $397.46 per tonne. This has now been corrected to $397.43 per tonne.

Fastmarkets’ pricing database and the relevant rationales have 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, please contact Abdi Salad by email at: pricing@fastmarkets.com. Please add the subject heading “FAO: Abdi Salad, re: Alumina index, fob Australia.”

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
The tungsten market was changing, Fastmarkets heard in the week to Wednesday June 24, and in a trading environment that was becoming less globalized and more fragmented, alongside trade tensions between the US and China in particular, the relationship between prices within China and outside the country has shifted.
Fastmarkets has amended its pricing holiday calendar to show Monday June 29, 2026 as a non-publishing day for Black Sea grains and oilseeds prices.
This consultation, which is open until July 27, 2026, seeks to ensure that our methodologies continue to reflect the physical market under indexation, in compliance with the International Organization of Securities Commissions (IOSCO) principles for Price Reporting Agencies (PRAs). This includes all elements of our pricing process, our price specifications and publication frequency. You can […]
Fastmarkets has corrected the rationale for MB-CU-0287 Copper concentrates TC index, cif Asia Pacific, $/tonne, which was published incorrectly on Friday June 26 due to a typo.
Fastmarkets has launched a monthly price assessment for medium carbon ferro-manganese in Europe, effective on Friday June 26, following market requests for price transparency.
Fastmarkets has amended the frequency of its MB-NI-0246 Nickel sulfate, cif Japan and Korea, and MB-NI-0247 Nickel sulfate premium, cif Japan and Korea assessments to fortnightly from weekly, effective Friday June 26.