| 1 | Receive the Annual Report | For |
| 2 | Approve the Remuneration Report | Oppose |
| 3 | Approve Remuneration Policy | Oppose |
| 4 | Elect Kate Rock - Chair (Non Executive) | For |
| 5 | Re-elect Alex Vaughan - Chief Executive | For |
| 6 | Re-elect Helen Willis - Executive Director | For |
| 7 | Re-elect Bishoy Azmy - Non-Executive Director | Oppose |
| 8 | Re-elect Neil Crockett - Non-Executive Director | For |
| 9 | Re-elect Jacqueline de Rojas - Non-Executive Director | For |
| 10 | Re-elect Fiona MacAulay - Non-Executive Director | For |
| 11 | Re-elect Tony Quinlan - Senior Independent Director | For |
| 12 | Re-appoint PwC as the Auditors | Oppose |
| 13 | Allow the Board to Determine the Auditor's Remuneration | For |
| 14 | Approve Political Donations | Abstain |
| 15 | Issue Shares with Pre-emption Rights | For |
| 16 | Approve Costain 2023 Long Term Incentive Plan | Oppose |
| 17 | Approve Costain 2023 Share Deferral Plan | Abstain |
| 18 | Issue Shares for Cash | Oppose |
| 19 | Issue Shares for Cash for the Purpose of Financing an Acquisition or Other Capital Investment | Oppose |
| 20 | Authorise Share Repurchase | Oppose |
| 21 | Meeting Notification-related Proposal | For |
