Absolut Distillers (formerly, Absolut Chemicals) Inc. (ADI) is a subsidiary of Tanduay Distillers, Inc. (TDI). It is a distillery business located in Lian town in Batangas, Philippines. ADI distillery produced high-strength wastewater, which polluted waterways, specifically the Bagbag and Pamlico Rivers. In 1998, the Pollution Adjudication Board of the Department of Energy and Natural Resources (DENR) issued a cease-and-desist order due to its contribution to the pollution of the said rivers. A state-of-the-art wastewater treatment plant was not economically viable at that time because it required a large investment. ADI needed to find an alternative solution in the management of its wastewater.