Moody's announces completion of a periodic review of ratings of Koppers Holdings Inc.
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Recent news on Koppers Holdings
See all newsKoppers Holdings Inc reports results for the quarter ended June 30 - Earnings Summary
Koppers Holdings beats Q2 sales estimates, cuts adjusted EPS outlook
Koppers Holdings Inc expected to post earnings of $1.12 a share - Earnings Preview
Brief: Koppers Announces Appointment Of Eric Brenner As Chief Financial Officer And Treasurer
Koppers Q1 sales beat on performance chemicals growth