PRICING NOTICE: Discontinuation of perlite assessments

By IM Staff
Published: Wednesday, 28 February 2018

Industrial Minerals has today discontinued the following five perlite market grades:

After a consultation period, Industrial Minerals has discontinued the following nitrate price:

Industrial Minerals has determined that there is little market appetite for the aforementioned pricing series and that they no longer serve the market.

If you have any comments on the discontinuation of this price please contact Barbara O'Donovan by email at: Please add the subject heading FAO: Barbara O'Donovan, re: Perlite

All historical data relating to this price prior to its suspension will be retained and made available to subscribers upon request.

To see all Industrial Minerals pricing methodology and specification documents go to

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