from 10-K 3 pages The Corporation Has More Than One Class of Stock Authorized to Be Issued. the Corporation Will Furnish Without Charge to Each Stockholder Upon Written Request, a Copy of the Full Text of the Preferences, Voting Powers, Qualifications and Special and Relative Rights of the Shares of Each Class of Stock (And Any Series Thereof) Authorized to Be Issued by the Corporation. the Following Abbreviations, When Used in the Inscription on the Face of This Certificate, Shall Be Construed as Though They Were Written Out in Full According to Applicable Laws or Regulations: Ten Com – As Tenants in Common Unif Gift Min Act – Custodian (Cust) (Minor) Ten Ent – As Tenants by the Entireties Under Uniform Gifts to Minors Jt Ten – As Joint Tenants With Right of Survivorship and Not as Tenants in Common Act

from 10-K 7 pages MKS Instruments, Inc. Restricted Stock Unit Agreement for Non-Employee Directors Granted Under the 2022 Stock Incentive Plan

from 10-K 12 pages Report furnished to security holders

from 10-K 4 pages Subsidiaries of the registrant

from 10-K 2 pages Consent of expert or counsel

from 10-K 2 pages Management certification of annual or quarterly disclosure

from 10-K 2 pages Management certification of annual or quarterly disclosure

from 10-K 2 pages Management certification of financial report

from 10-K img123278968_0.jpg

from 10-K img132926381_0.jpg