Type	Name	Date
Credit agreement	Second Amendment to First Amended and Restated Credit Agreement by and among Calgon Carbon Corporation, the other Borrowers party thereto, the Guarantor party thereto, the Lenders party thereto, and PNC Bank, National Association as Administrative agent	09/21/2017
Credit agreement	First Amendment to First Amended and Restated Credit Agreement by and among Calgon Carbon Corporation, the other Borrowers party thereto, the Guarantors party thereto, the Lenders party thereto, and PNC Bank, National Association as Administrative Agent	02/24/2017
Credit agreement	Fourth Amendment to Credit Agreement by and among Calgon Carbon Corporation, the Guarantors party thereto, the Lenders party thereto and PNC Bank, National Association, as Administrative Agent	04/15/2016
Credit agreement	Third Amendment to Credit Agreement by and among Calgon Carbon Corporation, the Guarantors party thereto, the Lenders party thereto and PNC Bank, National Association, as Administrative Agent	08/11/2015
Credit agreement	Credit Agreement, by and among the Calgon Carbon Corporation, the other borrowers party thereto, the guarantors party thereto, the lenders party thereto, PNC Bank, National Association, as Administrative Agent, Citizens Bank of Pennsylvania, as Syndication Agent, Branch Banking and Trust Company and Bank of America, N.A., as Co-Documentation Agents and RBS Citizens, N.A. and PNC Capital Markets LLC, as Joint Lead Arrangers and Joint Bookrunners, together with Schedules and Exhibits thereto	11/07/2013
Credit agreement	First Amended and Restated Credit Agreement by and among Calgon Carbon Corporation, as Borrower, Calgon Carbon Investments, Inc., BSC Columbus, LLC, CCC Columbus, LLC, Calgon Carbon Holdings, LLC and Hyde Marine, Inc., as the Guarantors, and First Commonwealth Bank, as Agent, a Lender, Issuing Bank and Swing Loan Lender, Citizens Bank of Pennsylvania, as a Lender, First National Bank of Pennsylvania, as a Lender and Co-Documentation Agent, and RBS Citizens, N.A., as Co-Documentation Agent, together with Schedules and Exhibits thereto	11/21/2011
Credit agreement	First Amendment to Credit Agreement	12/01/2009

Type	Name	Date
Employment agreement	Employment Agreement by and between Calgon Carbon Corporation and James A. Coccagno	08/05/2013
Severance agreement	Agreement and General Release by and between Calgon Carbon Corporation and Leroy M. Ball	08/05/2010