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  Information                                    Form 10-K for the year ended December 31,
ANNUAL MEETING                                                                                   TRANSFER AGENT, REGISTRAR
Ecolab’s annual meeting of stockholders will     2005. Also, the latest CEO/CFO certifications   AND DIVIDEND PAYING AGENT
be held on Friday, May 12, 2006, at 10 a.m. in   are available online at                         Shareholders of record may contact the
the Landmark Center’s Weyerhauser                    transfer agent, Computershare Investor
Auditorium, 75 West Fifth Street, St. Paul,                                                      Services, LLC, to request assistance with a
MN 55102.                                        INDEPENDENT REGISTERED                          change of address, transfer of share
                                                 PUBLIC ACCOUNTING FIRM                          ownership, replacement of lost stock
COMMON STOCK                                          PricewaterhouseCoopers LLP                 certificates, dividend payment or tax
Stock trading symbol ECL. Ecolab common               225 South Sixth Street                     reporting issues. If your Ecolab shares are
stock is listed and traded on the New York            Minneapolis, MN 55402                      held in a bank or brokerage account, please
Stock Exchange (NYSE). Ecolab shares are                                                         contact your bank or broker for assistance.
also traded on an unlisted basis on certain      INVESTOR INQUIRIES
other exchanges. Options are traded on the       Securities analysts, portfolio managers and     Courier Address:
NYSE.                                            representatives of financial institutions            Computershare Investor Services
                                                 seeking information about Ecolab may                 2 North LaSalle Street
Ecolab common stock is included in the           contact:                                             Chicago, IL 60602
Specialty Chemicals sub-industry under the            Michael J. Monahan                         Dividend Reinvestment Plan Correspondence:
Materials sector of the Standard & Poor’s             External Relations Vice President               Computershare Investor Services
Global Industry Classification Standard.              Telephone: (651) 293-2809                       P.O. Box 3309
                                                      E-mail:               Chicago, IL 60690
As of February 21, 2006, Ecolab had 5,185                                                        General Correspondence:
shareholders of record. The closing stock        INVESTOR RESOURCES                                   Computershare Investor Services
price on February 21, 2006, was $35.92 per       SEC Filings: Copies of Ecolab’s Form 10-K,           P.O. Box A3504
share.                                           10-Q and 8-K reports as filed with the               Chicago, IL 60690
                                                 Securities and Exchange Commission are
DIVIDEND POLICY                                  available free of charge. These documents       Electronic Shareholder Communications:
Ecolab has paid common stock dividends for       may be obtained on our Web site at              Shareholders of record may register to
69 consecutive years. Quarterly cash    promptly after          receive future Annual Reports, proxy
dividends are typically paid on the 15th of      such reports are filed with, or furnished to,   materials or other shareholder
January, April, July and October.                the SEC, or by contacting:                      communications by E-mail, including account
                                                      Ecolab Inc., Attn: Corporate Secretary     statements and tax reporting forms. By
DIVIDEND REINVESTMENT                                 370 Wabasha Street North                   electing Electronic Shareholder
Shareholders of record may elect to reinvest          St. Paul, MN 55102                         Communications, you help Ecolab control
their dividends. Plan participants may also           E-mail:           costs and protect the environment by
elect to purchase Ecolab common stock                                                            reducing paper usage. To enroll online, go to
through this service. To enroll in the plan,     Web site: Visit for
shareholders may contact the plan                financial information and investor news.
administrator, Computershare, for a                                                              E-mail:, or
brochure and enrollment form.                    Sustainability Report: For Ecolab,              use the online form at
                                                 environmental sustainability means future
GOVERNANCE/COMPLIANCE                            viability and growth. To view our latest
Governance Information: Disclosures              report, go to                   Telephone: (312) 360-5203; or
concerning our Board of Directors’ policies,     companyprofile/environmental_principles         1-800-322-8325
governance principles and corporate ethics                                                       Computershare provides telephone
practices, including our Code of Conduct,        RESEARCH COVERAGE                               assistance to shareholders Monday through
are available online at                          Investors may contact the following firms       Friday from 8 a.m. to 6 p.m. (Eastern Time).               that have recently provided research            Around-the-clock service is also available
                                                 coverage on Ecolab: Buckingham Research;        online and to callers using touch-tone
NYSE Compliance: Our Chief Executive             Citigroup; Credit Suisse; Deutsche Bank;        telephones.
Officer’s most recent annual certification       Goldman Sachs; Ingalls & Snyder; J. P.
dated May 13, 2005, confirming he was not        Morgan; Jefferies & Company; Longbow            Hearing Impaired: (312) 588-4110
aware of any violations by Ecolab of the         Research; Merrill Lynch; Morgan Stanley;
NYSE’s Corporate Governance listing              New Vernon Associates; Soleil Securities;       Web site:
standards was previously filed with the          Thomas Weisel Partners; UBS Securities; and
NYSE.                                            William Blair.
                                                 The reference to such firms does not imply
SEC Compliance: The most recent                  any endorsement of the information by
certifications by our Chief Executive Officer    Ecolab.                                         C REDUCE, RE-USE, RECYCLE
                                                                                                 If you received multiple copies of this report, you
and Chief Financial Officer made pursuant to                                                     may have duplicate investment accounts. Help save
Section 302 of the Sarbanes-Oxley Act of                                                         resources. Please contact your broker or the
2002 regarding the quality of our public                                                         transfer agent to request assistance with
disclosure can be found as Exhibit (31) to our                                                   consolidating any duplicate accounts.

 54                | Ecolab | Annual Report 2005

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