Pittston produces mostly metallurgical coal, used in the manufacture of steel, and sells more than half its product overseas.

The remainder is metallurgical, or coking, coal used in making steel.

Last year, demand for metallurgical coal amounted to 38 million tons, down from 67 million tons in 1980.

Most of the company's Australian production is metallurgical coal.

Steel production was fueled by coke, distilled carbon made from metallurgical coal.

It is also a leading producer of metallurgical coal.

Alpha Natural Resources is a large American producer of metallurgical and thermal coal.

This necessitates the use of metallurgical coal, which is a premium grade due to its relative scarcity.

The imports will be of both metallurgical and thermal coal.

Through the 1960s and 1970s the demand for the county's metallurgical coal remained high.