Nalco Executive to Address Janney Capital Markets 2011 Water Industry Summit


NAPERVILLE, Ill., March 15, 2011 - Nalco (NYSE: NLC), providing essential expertise for water, energy and air, announced today that executive David Flitman will be speaking at an investor conference in March.

On March 24, Mr. Flitman, Senior Executive Vice President and President, Water and Process Services, will address the Janney Capital Markets 2011 Water Industry Summit at 10:30 a.m. EDT at the Grand Hyatt in New York.

The presentation will be available via webcast on the Investor Relations portion of the Company's website at www.nalco.com/investors. Participants are advised to log on to the event 5 to 10 minutes before the scheduled start time. A replay of the webcast will be available approximately one hour after the presentation concludes and will remain available for 90 days after the presentation.

About Nalco

Nalco is the world's largest sustainability services company focused on industrial water, energy and air applications; delivering significant environmental, social and economic performance benefits to our customers. We help our customers reduce energy, water and other natural resource consumption, enhance air quality, minimize environmental releases and improve productivity and end products while boosting the bottom line. Together our comprehensive solutions contribute to the sustainable development of customer operations. Nalco is a member of the Dow Jones Sustainability World and North America Indexes. More than 12,000 Nalco employees operate in 150 countries supported by a comprehensive network of manufacturing facilities, sales offices and research centers to serve a broad range of end markets. In 2010, Nalco achieved sales of $4.25 billion. For more information visit www.nalco.com.

Follow us on Twitter at www.twitter.com/Nalco_News and http://www.twitter.com/NalcoCompany.

CONTACT: Media, Charlie Pajor, +1-630-305-1556, cpajor@nalco.com, or Investors, Lisa Curran, +1-630-305-1475, llcurran@nalco.com, both of Nalco

All Topics