SUBSCRIBER NOTE: Platts to adjust US petcoke assessments effective March 11

Platts will adjust the sulfur content and discontinue the Hardgrove Grindability Index (HGI) factor reflected in its existing US Gulf Coast and West Coast petcoke assessments effective March 11, 2015.

In addition, Platts will launch a new US West Coast petcoke assessment to reflect sulfur content of less than 2.5%.

The change in sulfur content is as follows:

US Gulf Coast 6%-6.5% sulfur (code CPAAA00) will change to reflect sulfur content greater than 6%.

US Gulf Coast 4%-5.5% sulfur (code CPAAF00) will change to reflect sulfur content of at least 4% but less than 5%. US Gulf Coast 5%-6% sulfur (CPAGF00) will remain unchanged, reflecting petcoke with sulfur content of 5%-6% (inclusive). US West Coast 4% sulfur (code CPAAC00) will change to reflect sulfur content of greater than or equal to 2.5%.

Platts will continue to review all specifications including but not limited to the timing of the loading window, volumes and terminal and locations reflected in the assessments.

The sulfur parameter changes and the new assessment will be effective and launch on March 11, 2015. Please address any questions or comments to coal@platts.com and pricegroup@platts.com.

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.