Press Release

Calgon Carbon Third Quarter 2015 Results Conference Call

PITTSBURGH, PA  –  10/27/2015

Calgon Carbon Corporation (NYSE: CCC) will hold its quarterly conference call to discuss third quarter 2015 results on Thursday, November 5, 2015, at 9:00 a.m. Eastern Time. Randy Dearth, Calgon Carbon’s Chairman, President and Chief Executive Officer; Bob O’Brien, Chief Operating Officer; and Steve Schott, Chief Financial Officer, will discuss the Company’s third quarter results.

If you would like to participate in the conference call, please phone 706-758-4301 shortly before the scheduled start time. The conference ID is 52344897.

The conference call will be re-broadcast beginning two hours after the call concludes through
November 12, 2015, at midnight Eastern Time. To listen to the re-broadcast, please phone
404-537-3406 or 800-585-8367. The conference ID is 52344897.

News Release Contact:

Dan Crookshank