Proposal to amend specifications of US silicon premium

Fastmarkets proposes to clarify and change some of the specifications for its silicon, ddp US, price assessment.

On reviewing the methodology specifications, Fastmarkets is proposing to update the quantity, location and payment terms of the price. The specifications would be as follows, with amendments in italics:

MB-SI-0003 silicon, ddp US, US cents per lb
Quality: Si: 98.50%, Fe: 0.50%, Al: 0.50%, Ca: 0.30%
Quantity: Min 20 tonnes
Location:ddp US
Unit: US cents per lb
Payment terms: 30 days, other terms normalized
Publication: Weekly, Thursday 4-5pm New York time.

The quantity specification was previously erroneously written as short tons; the location specification did not match the price title and was written as “delivered US” and there were no payment terms listed.

This price is part of the Fastmarkets minor metals package.

The consultation period for this proposed amendment starts on Tuesday July 22 and will end on Monday August 18. The amendment will then take place, subject to market feedback, on Wednesday August 20.

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

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/about-us/methodology.

What to read next
The prices that will be affected are AG-SAF-0006 sustainable aviation fuel (SAF max), base cost, exw Netherlands (incl. HBE-IXB credits), $ per tonne, and AG-SAF-0007 sustainable aviation fuel (HVO max), base cost, exw Netherlands (incl. HBE-IXB credits), $ per tonne. Following the update by the Netherlands to its current biofuel mandate ahead of its full implementation of […]
Fastmarkets has suspended its pricing for Iran steel billet and slab exports following the escalation of the conflict between the US, Israel and Iran and because relevant, relative pricing data is not immediately available.
The two prices will broaden coverage of the world’s largest graphite flake market, complementing existing Fastmarkets’ graphite flake offerings. The new Chinese domestic prices will provide market participants with additional reference points, capturing unique dynamics of Chinese graphite market, particularly in the wake of graphite export controls that have raised the need for domestic market […]
Fastmarkets published its assessment of the MB-STE-0232 steel scrap No1 busheling, consumer buying price, delivered mill Chicago, $/gross ton on Thursday March 5, 2026.
Fastmarkets is inviting feedback from the industry on the pricing methodology for its steel reinforcing bar (rebar), domestic, delivered Saudi Arabia price, as part of its annual methodology review process.
Effective March 5, Fastmarkets has removed the synthetic history added to European cartonboard prices and US kraft paper in October 2023, to improve the quality of the dataset.