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Fastmarkets consulted the market between May 18 and June 17, 2026. No feedback was received during the consultation period, but preliminary market feedback encouraged increasing the minimum tonnage, because participants noted that smaller-sized spot market transactions may be skewed and not reflective of the wider market.As a result, Fastmarkets will increase the minimum tonnage specification from 100 tonnes to 500 tonnes, effective Thursday June 25, 2026.This decision was first proposed in a methodology note published on April 2, which you can view here.The new specifications are as follows, with changes in italics:MB-AL-0343 Aluminium P1020A (MJP) spot premium, cif Japan, $/tonneQuality: P1020A or 99.7 % Minimum Al purity (Si 0.10% max, Fe 0.20% max) in line with LME specifications. Ingot, T-bar, sowQuantity: Min 500 tonnesLocation: cif in main Japanese ports at Yokohama, Nagoya and Osaka, premium on top of exchange-listed aluminium priceTiming: Within two calendar monthsUnit: USD/tonnePayment terms: Cash against documents (2 days after Bill of lading date)Publication: Daily. 6-7pm Singapore timeThis price is a part of the Fastmarkets base metals package.Please send any questions or comments to pricing@fastmarkets.com and basemetals@fastmarkets.com. 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 the Fastmarkets methodology page.