PRICING NOTICE: Amendments to manganese ore indices

Metal Bulletin has updated its manganese ore indices base specifications to align with market standards.

For the manganese ore 37% Mn fob Port Elizabeth index, the alumina base content changes to 0.2% from 1% and the maximum to 2% from 8%.

In addition, the silica base content changes to 5.5% from 6%, the phosphorous base content will change to 0.025% from 0.04%, and the maximum iron content will change to 10% from 16%.

For the manganese ore 44% Mn cif China index, the base silica content changes to 11% from 4% and the base alumina content to 5% from 6%.

These changes will have no impact on the index values.

All historical data relating to these indices prior to the amendments will remain available in the pricing section of the Metal Bulletin website.

Metal Bulletin has no financial interest in the level or direction of the price assessment.

To provide feedback on this price or if you would like to provide price information by becoming a data submitter to this price, please contact Charlotte Radford by email at: Please add the subject heading ‘FAO Charlotte Radford, re: manganese ore indices’.

To see all Metal Bulletin’s pricing methodology and specification documents go to

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