After an intensive demonstration-scale study of 18 months, PUB, Singapore’s National Water Agency has put into service a 180 MLD CeraMac® water treatment plant at Choa Chu Kang Waterworks (CCKWW). This plant went into service in May 2019 and is currently the largest ceramic membrane filtration plant for drinking water treatment in the world. UGL (Singapore) Pte Ltd built the plant, with the state-of-art CeraMac installation, designed and built by PWNT with membranes supplied by Japanese ceramic membrane specialist METAWATER. This plant treats a reservoir supply and uses ozone oxidation on the membranes as part of the treatment train.