Proposal to launch US magnesium assessment extended

Following an initial 30-day consultation period, Fastmarkets has elected to extend its market consultation regarding its proposal to launch a US magnesium metal price assessment to allow for further feedback and clarification from the industry.

Fastmarkets has proposed to launch a bi-weekly magnesium metal assessment, ex-warehouse US, to provide insight and transparency to the various participants in the magnesium market.

The current price specifications for the bi-weekly assessment are as follows:

Magnesium 99.9% min, ex-warehouse US, cents per lb
Quality: Ingots and sticks. Mg 99.9% min, Fe 0.04% max, Si 0.02% max, Ni 0.002% max, Cu 0.01% max, AL 0.02% max, Mo 0.03% max, Cl 0.05% max, others 0.1% max, conforming to ASTM specifications B92/92M-11 and 9990A
Quantity: 20 tonnes
Location: Ex-warehouse, US
Timing: Within 30 days
Units: US cents per lb
Publication: Bi-weekly, Thursdays

The extended consultation period for this proposed price will end 30 days from the date of this pricing notice on April 14, with an update to this proposal published on that day. Subject to market feedback, the proposed changes would take place beginning with the bi-weekly assessment on April 20.

To provide feedback on this proposal or if you would like to provide price information by becoming a data submitter to this assessment, please contact Chris Kavanagh by email at: pricing@fastmarkets.com. Please add the subject heading “FAO: Chris Kavanagh re: US magnesium price assessment.”

To see all Fastmarkets’ pricing methodology and specification documents go to https://www.fastmarkets.com/about-us/methodology.

What to read next
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.
Fastmarkets has launched two monthly price assessments covering the solar photovoltaic (PV) module market and battery energy storage (BESS) cell market in China on Friday June 26, 2026.