Inc., a subsidiary of Koppers Holdings Inc., and Burlington Northern Santa Fe
Corporation have agreed to a seven-year extension of an existing
contract for railroad crossties and various other products and services. The
agreement extends the existing contract, which runs through December 31, 2010,
for an additional seven years through December 31, 2017. Revenues from BNSF
under this contract amounted to approximately $57 million in 2008.