Nalco’s price increase will be effective immediately, or as contracts permit. Pricing for most Nalco programs will increase between seven and 15 percent, depending on product mix. Price increases will vary by country and industry, driven by local cost increases and will supplement previously announced increases for the paper services segment, which were effective 1 December 2010.The need for these price increases is driven by the continued and significant escalation of energy and raw material costs, tightening availability of some raw materials and rising freight and personnel costs.