Ecovyst (ECVT) Proxy Filing summary

Executive summary

• The annual meeting will be held virtually on May 8, 2025, with voting on director elections, executive compensation, and auditor ratification.

• Stockholders as of March 24, 2025, are eligible to vote, with 117,385,510 shares outstanding.

• The company emphasizes strong governance, board refreshment, and adherence to best practices, including board declassification and robust risk oversight.

Voting matters and shareholder proposals

• Stockholders will vote to elect two director nominees as Class III directors for a one-year term.

• An advisory vote on executive compensation (say-on-pay) and ratification of PricewaterhouseCoopers LLP as independent auditor for 2025 are on the agenda.

• Stockholders may submit proposals for the 2026 annual meeting by December 9, 2025.

Board of directors and corporate governance

• The board is transitioning from a classified structure to annual elections, completing declassification by 2027.

• Seven of eight directors are independent; half the board is diverse by gender or ethnicity.

• Board committees (Audit, Compensation, Nominating and Corporate Governance, Health, Safety, Environment and Security) are fully independent.

• Directors are subject to stock ownership guidelines and retirement/tenure policies.