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*Signature      Pages Follow*

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|   | **BORROWERS****:**                                                                                                                                                              |
|--------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
|   |                                                                                                                                                                            |
|   | CALGON                CARBON CORPORATION                                                                                                                                        |
|   |                                                                                                                                                                            |
|   |                                                                                                                                                                            |
|   | By:                /s/ Leroy M.                Ball                         |
|   | Name:                Leroy M. Ball                                                                                                                                              |
|   | Title:                Senior Vice President                                                                                                                                     |
|   |                                                                                                                                                                            |
|   |                                                                                                                                                                            |
|   | CALGON                CARBON INVESTMENTS, INC.                                                                                                                                  |
|   |                                                                                                                                                                            |
|   |                                                                                                                                                                            |
|   | By:                  /s/ Leroy M.                  Ball                     |
|   | Name:                Leroy M. Ball                                                                                                                                              |
|   | Title:                Senior Vice President                                                                                                                                     |
|   |                                                                                                                                                                            |
|   |                                                                                                                                                                            |
|   | BSC                COLUMBUS, LLC                                                                                                                                                |
|   |                                                                                                                                                                            |
|   |                                                                                                                                                                            |
|   | By:                  /s/ Leroy M.                  Ball                     |
|   | Name:                Leroy M. Ball                                                                                                                                              |
|   | Title:                Senior Vice President                                                                                                                                     |
|   |                                                                                                                                                                            |
|   |                                                                                                                                                                            |
|   |                                                                                                                                                                            |
|   | CCC                COLUMBUS, LLC                                                                                                                                                |
|   |                                                                                                                                                                            |
|   |                                                                                                                                                                            |
|   | By:                  /s/ Leroy M.                  Ball                     |
|   | Name:                Leroy M. Ball                                                                                                                                              |
|   | Title:                Senior Vice President                                                                                                                                     |

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|   | EXECUTED                  AND DELIVERED as a Deed by                                                                                                                                            |
|--------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
|   | CHEMVIRON                  CARBON LIMITED acting by:                                                                                                                                            |
|   |                                                                                                                                                                                            |
|   | Director:                  /s/                  C.H.S. (Kees)                  Majoor                                               |
|   |                                                                                                                                                                                            |
|   | Director/secretary:                  /s/ Leroy M.                  Ball                     |
|   |                                                                                                                                                                                            |
|   |                                                                                                                                                                                            |
|   | EXECUTED                  AND DELIVERED as a Deed by WATERLINK (UK) HOLDINGS LIMITED acting                  by:                                                                                |
|   |                                                                                                                                                                                            |
|   |                                                                                                                                                                                            |
|   | Director:                    /s/                    C.H.S. (Kees)                    Majoor                                         |
|   | Director/secretary:                  /s/ Leroy M.                  Ball                     |
|   |                                                                                                                                                                                            |
|   |                                                                                                                                                                                            |
|   | EXECUTED                  AND DELIVERED as a Deed by SUTCLIFFE                  SPEAKMAN LIMITED acting by:                                                                                     |
|   |                                                                                                                                                                                            |
|   |                                                                                                                                                                                            |
|   | Director:                    /s/                    C.H.S. (Kees)                    Majoor                                         |
|   | Director/secretary:                  /s/ Leroy M.                  Ball                     |
|   |                                                                                                                                                                                            |
|   |                                                                                                                                                                                            |
|   | EXECUTED                  AND DELIVERED as a Deed                  by LAKELAND                  PROCESSING LIMITED acting by:                                                                   |
|   |                                                                                                                                                                                            |
|   |                                                                                                                                                                                            |
|   | Director:                    /s/                    C.H.S. (Kees)                    Majoor                                         |
|   |                                                                                                                                                                                            |
|   | Director/secretary:                  /s/ Leroy M.                  Ball                     |
|   |                                                                                                                                                                                            |
|   |                                                                                                                                                                                            |
|   | EXECUTED                  AND DELIVERED as a Deed by CHARCOAL                  CLOTH (INTERNATIONAL)                                                                                            |
|   |                                                                                                                                                                                            |
|   | LIMITED                  acting by:                                                                                                                                                             |
|   |                                                                                                                                                                                            |
|   |                                                                                                                                                                                            |
|   | Director:                    /s/                    C.H.S. (Kees)                    Majoor                                         |
|   | Director/secretary:                  /s/ Leroy M.                  Ball                     |

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|   | **ADMINISTRATIVE                  AGENTS AND LENDERS****:**                                                                                                                                              |
|--------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
|   |                                                                                                                                                                                                     |
|   |                                                                                                                                                                                                     |
|   |                                                                                                                                                                                                     |
|   | JPMORGAN                  CHASE BANK, N.A., as US Administrative                  Agent and as a Lender                                                                                             |
|   |                                                                                                                                                                                                     |
|   |                                                                                                                                                                                                     |
|   | By:                  /s/                  Donna                  DiForio                                                                |
|   | Name:                  Donna DiForio                                                                                                                                                                     |
|   | Title:                  Vice President                                                                                                                                                                   |
|   |                                                                                                                                                                                                     |
|   |                                                                                                                                                                                                     |
|   | J.P.                  MORGAN EUROPE LIMITED, as European Administrative                  Agent                                                                                                 |
|   |                                                                                                                                                                                                     |
|   |                                                                                                                                                                                                     |
|   | By:                  /s/                  Tim                  Jacob                       |
|   | Name:                  Tim Jacob                                                                                                                                                                         |
|   | Title:                  Senior Vice President                                                                                                                                                            |
|   |                                                                                                                                                                                                     |
|   |                                                                                                                                                                                                     |
|   | CITIZENS                  BANK OF PENNSYLVANIA,                                                                                                                                                          |
|   | as a Lender                                                                                                                                                                                    |
|   |                                                                                                                                                                                                     |
|   |                                                                                                                                                                                                     |
|   | By:                  /s/                  Paul A.                  Rebholz                                                         |
|   | Name:                  Paul A. Rebholz                                                                                                                                                                   |
|   | Title:                  Vice Pr esident                                                                                                                                                                  |
|   |                                                                                                                                                                                                     |
|   |                                                                                                                                                                                                     |

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