Advanced Info Service

Advanced Info Service

Advanced Info Service PCL is Thailand's largest GSM mobile phone operator with 31 million customers as of September 2011. Founded in April 1986, AIS started off as a computer rental business. In October 1990, it launched analog 900 MHz mobile phone services with a 20 year monopoly concession from the Telephone Organization of Thailand, and later became the first company allowed to operate on the GSM 900 frequency. Followed by acquiring Shinawatra Paging in June 1992.

The highly profitable company is controlled by the InTouch plc (formerly Shin Corporation), headed by Temasek Holdings, a Singapore government owned agency. AIS is listed on the Stock Exchange of Thailand on November 5, 1991 (1991-11-05). As of 23 December 2011, InTouch plc holds 40.45% of the total shares of the company and Singapore Telecommunications (also majority held by Temasek together) together with Thai Trust Fund and OCBC Nominees holds a 23.32% stake.

Temasek bought AIS brand through the 2006 acquisition of the then known - Shin Corporation from the ousted Former Prime Minister Thaksin Shinawatra.

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