Mar 28, 2011. /Lesprom Network/. Koppers Inc., a subsidiary of Koppers Holdings Inc., has amended its existing credit agreement with a syndicate of banks led by Pittsburgh-based PNC and co-led by RBS Citizens Bank and Bank of America as joint book runners (the "Amendment"). The previous agreement that was due to expire October 31, 2013 has been amended to extend the expiration to March 22, 2015, as the company said in a press release received by Lesprom Network. The agreement continues to provide for a revolving credit facility of $300 million at an initial interest rate of LIBOR plus 225 basis points and is subject to certain covenants including maximum leverage and minimum fixed charges coverage. Additionally, the Amendment allows for a higher level of foreign investment. "We are pleased to be able to extend our bank agreement, and we appreciate our long-standing relationship with PNC and the other banks in our syndicate," said Walter W. Turner, president and CEO of Koppers. Mr. Turner continued, "This amendment extends our maturity and also provides for the flexibility to pursue even more aggressively our emerging market growth strategy." Koppers is a global integrated producer of carbon compounds and treated wood products. Including its joint ventures, Koppers operates facilities in the United States, United Kingdom, Denmark, The Netherlands, Australia, and China.