Glas Cymru Cyfyngedig (Glas Cymru) is a public service company, engaged in water supply business. The company established for single purpose to owns, finances and manages the following company, namely, Welsh Water. It is engaged in the business of providing water and sewerage service to more than 3 million people spread across Wales and adjoining areas of England through Welsh water. It serves nearly 1.2 million residential household customers and more than 100,000 corporate customers in England and Wales. Glas Cymru offers these services through 67 reservoirs, 67 water treatment works, which supplies an average 850 million liters of water every day. The water supplies are made available through its network of 27,000 km of water mains including 1900 pumping stations and 557 service reservoirs. In addition, it is also involved in treating wastewater and sewage water to provide safe and reliable drinking water. The company is headquartered in Treharris, the UK.