Clearly defined and transparent methodologies are the backbone of Platts’ price assessment processes. Platt’s methodologies provide detailed descriptions and explanations of how we assess the market value of commodities so that customers and other interested parties understand those processes. In this section, we post documentation by commodity and region for all published price assessments and indices.

Metallurgical Coal methodology
(as of August 2010)

Alumina methodology
(as of August 2010)

Iron ore methodology
(as of March 2010)

Steel and ferrous scrap methodology
(as of October 2009)

Metals methodology
(as of July 2010)