Attached files
| file | filename |
|---|---|
| S-1/A - AMENDMENT NO.2 TO THE FORM S-1 - Ecovyst Inc. | d382954ds1a.htm |
| EX-23.4 - EX-23.4 - Ecovyst Inc. | d382954dex234.htm |
| EX-23.3 - EX-23.3 - Ecovyst Inc. | d382954dex233.htm |
| EX-23.2 - EX-23.2 - Ecovyst Inc. | d382954dex232.htm |
| EX-23.1 - EX-23.1 - Ecovyst Inc. | d382954dex231.htm |
| EX-16.1 - EX-16.1 - Ecovyst Inc. | d382954dex161.htm |
| EX-10.19 - EX-10.19 - Ecovyst Inc. | d382954dex1019.htm |
| EX-10.13 - EX-10.13 - Ecovyst Inc. | d382954dex1013.htm |
| EX-10.11 - EX-10.11 - Ecovyst Inc. | d382954dex1011.htm |
| EX-10.10 - EX-10.10 - Ecovyst Inc. | d382954dex1010.htm |
Exhibit 10.12
AMENDMENT TO ZEOLYST ENTERPRISES JOINT VENTURE PARTNERSHIP
BETWEEN
PQ CORPORATION AND SHELL POLYMERS AND CATALYSTS ENTERPRISES INC.
DATED FEBRUARY 1, 1988
Pursuant to Paragraph 20.1 of the above referenced Agreement, Paragraph 9.2(ix) of the same Agreement is deleted in its entirety and replaced with the following:
(ix) Approve or authorize any capital project or expenditure in excess of $500,000 in the case of the Management Committee or $75,000 in the case of the officers;
AGREED TO THIS 18th DAY OF October, 2002
| PQ CORPORATION | SHELL CATALYST VENTURES INC. (formerly known as Shell Polymers and Catalysts Enterprises Inc.) | |
| By: /s/ Stanley W. Silverman | By: /s/ Raymond T. Collins | |
| Name: Stanley W. Silverman | Name: Raymond T. Collins | |
| Title: President | Title: President | |