Nalco Company History. On november 30, 2011 shareholders of both ecolab and nalco. Based in naperville, illinois, with operations in more than 150 countries, nalco is the world's leading water treatment and process improvement company, offering water.


Nalco Company History

On november 30, 2011 shareholders of both ecolab and nalco. With a presence at more than 100,000 customer sites in varying industries, we leverage.

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