Platts amends its US West Coast petcoke market specifications

Platts, part of S&P Global Energy, has updated the sulfur specifications for its low- and mid-high sulfur US West Coast petroleum coke (petcoke) price assessments effective Dec. 1, 2025.

Platts proposed the specification amendments to its assessments in a subscriber note published Oct. 20, 2025, following research and market engagement. Platts then announced its decision in a subscriber note published Nov. 3, 2025.

The FOB US West Coast Mid-Sulfur Petcoke assessment now reflects a sulfur range of 3%-5%, while the FOB US West Coast Low-Sulfur Petcoke assessment now reflects a sulfur range of 1%-2.9%.

The updated assessments are as follows:

These updates also include the related monthly and quarterly averages.

The assessments continue to reflect cargoes of 10,000 mt or more.

Platts FOB USWC petcoke assessments appear in Platts Coal Trader, Platts Coal Trader International and on Platts Service Page Numbers GCN0960 and GCI0960. Full details of Platts petcoke assessments can be found in the Global Coal Specifications Guide.

Platts invites feedback, comments and questions to coal@spglobal.com and pricegroup@spglobal.com.

For written comments, please provide a clear indication if comments are not intended for publication by Platts for public viewing.

Platts will consider all comments received and will make comments not marked as confidential available upon request.