HILLIARD, Ohio--(BUSINESS WIRE)--Advanced Drainage Systems, Inc. (NYSE: WMS) ("ADS†or the "Company†), a leading provider of innovative water management solutions in the stormwater and onsite wastewater industries today announced that it has entered into a definitive stock purchase agreement under which ADS will acquire the water management business of Norma Group SE (DAX: NOEJ), known as National Diversified Sales ("NDS†), in an all-cash transaction valued at approximately $1.0 billion, or app. ...