Ecolab Increases Cash Dividend 11%

26th Consecutive Annual Cash Dividend Rate Increase

ST. PAUL, Minn.–(BUSINESS WIRE)–The Board of Directors of Ecolab Inc. declared an 11% increase in the
company’s quarterly cash dividend to $0.41 per common share, to be paid
January 16, 2018, to shareholders of record at the close of business on
December 19, 2017. This increase results in a new indicated annual cash
dividend of $1.64 per share in 2018 and represents Ecolab’s 26th
consecutive annual dividend rate increase.

Ecolab has paid cash dividends on its common stock for 81 consecutive
years.

Commenting on the increase, Douglas M. Baker, Jr., Ecolab’s Chairman and
Chief Executive Officer said, “This double-digit cash dividend increase
reflects our improving business trends, solid financial position and
strong cash flows, as well as our commitment to enhancing total
shareholder returns.”

About Ecolab

A trusted partner at more than one million customer locations, Ecolab
(ECL) is the global leader in water, hygiene and energy technologies and
services that protect people and vital resources. With 2016 sales of $13
billion and 48,000 associates, Ecolab delivers comprehensive solutions
and on-site service to promote safe food, maintain clean environments,
optimize water and energy use and improve operational efficiencies for
customers in the food, healthcare, energy, hospitality and industrial
markets in more than 170 countries around the world. For more Ecolab
news and information, visit www.ecolab.com.

(ECL-D)

Contacts

Ecolab Inc.
Investor Contacts:
Michael Monahan,
651-250-2809
or
Andrew Hedberg, 651-250-2185