Form of Proxy

ECOLAB INC.

Notes

BD Client Code:

Client Name:

Number of Shares Held in a BD Nominee Company:

No.	Proposition		For	Against	Abstain
1	Election of Director: Judson B. Althoff
2	Election of Director: Shari L. Ballard
3	Election of Director: Christophe Beck
4	Election of Director: Michel D. Doukeris
5	Election of Director: Eric M. Green
6	Election of Director: Marion K. Gross
7	Election of Director: Michael Larson
8	Election of Director: David W. MacLennan
9	Election of Director: Tracy B. McKibben
10	Election of Director: Lionel L. Nowell III
11	Election of Director: Suzanne M. Vautrinot
12	Election of Director: Julie P. Whalen
13	Election of Director: John J. Zillmer
14	Approve, on an advisory basis, the compensation of our named executive officers disclosed in the Proxy Statement.
15	Ratify the appointment of PricewaterhouseCoopers LLP as Ecolabs independent registered public accounting firm for the current year ending December 31, 2026.
16	Vote on a stockholder proposal regarding an independent board chair policy, if properly presented at the meeting.