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Form DEFA14A - Additional definitive proxy soliciting materials and Rule 14(a)(12) material:
SEC Accession No. 0001193125-24-131370
Filing Date
2024-05-06
Accepted
2024-05-06 06:32:57
Documents
1

Document Format Files

Seq Description Document Type Size
1 DEFA14A d814110ddefa14a.htm DEFA14A 24260
  Complete submission text file 0001193125-24-131370.txt   25361
Mailing Address 300 LINDENWOOD DRIVE MALVERN PA 19355
Business Address 300 LINDENWOOD DRIVE MALVERN PA 19355 484-617-1200
Ecovyst Inc. (Filer) CIK: 0001708035 (see all company filings)

IRS No.: 813406833 | State of Incorp.: DE | Fiscal Year End: 1231
Type: DEFA14A | Act: 34 | File No.: 001-38221 | Film No.: 24915467
SIC: 2800 Chemicals & Allied Products
(CF Office: 08 Industrial Applications and Services)