GSL Water Sendirian Berhad (Formerly known as Innovest-Lyonnaise Sdn. Bhd. ) was arwarded the tender for the privatisation of two water treatment facilities at Gunung Semanggol and Taiping in 1989 by the State Government of Perak Darul Ridzuan .A 20-year concession agreement was signed in October 1989 and GSL Water took over operations of Gunung Semanggol and Taiping Headworks water treatment facilities on 1 November 1989.

The existing shareholder of GSL Water are :

• Gopeng Berhad
  

• Sisma Water Technology Sdn. Bhd.
  

• Suez Lyonnaise des Eaux.
  

Background

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     Gunung Semanggol Water Treatment Plant received its ISO 9002 certification in November 1998 followed by Taiping Headworks Plant in 1999 thus becoming the first water treatment plant in Perak to achieve this prestigious  and stringent quality assurance certification . This certification confirms our professionalism to produce drinking water meeting international quality standards

      In our strives to achieve world class operations and continuous improvement in the quantity, quality and reliability of drinking water supplies, we have developed our laboratory operations  to meet the stringent  ISO / IEC Guide 25 Laboratory Accreditation thus ensuring the highest accuracy quality analysis.

Our Technical partner , Suez Lyonnaise des Eaux is a leading blue chip company on the Paris stock exchange. It is a world leader in private infrastructure services with more than 100 years experience in the field of water and supplies drinking water to more than 72 million people worldwide. It has the world's largest private research budget in the water sector with annual budgets exceeding RM200million. Its research activities are decentralized worldwide and its Asia Pacific  Technology  And Research Network (ASTRAN) is based in Kuala Lumpur.