on 13 June 2000, close to one-third of Telia's shares were introduced on the Stockholm Stock Exchange. In the 1980s, Televerket was a pioneering mobile network operator with the NMT system, followed in the 1990s by GSM. Private competition in analogue mobile phone systems had already broken the telephone monopoly, and the growing internet allowed more opportunities for competitors. The most important of Telia's Swedish competitors in these areas has been Tele2. When PTS awarded four licenses for the 3rd generation mobile networks in December 2000, Telia was not among the winners, but later established an agreement to build a 3G network jointly with Tele2 using Tele2's licence. SUNAB was founded as the jointly owned company that would in turn build, own and operate the joint 3G network. In December 2018, Telia in cooperation with Ericsson launched Sweden's first 5G network at KTH Royal Institute of Technology in Stockholm. Sonera The history of Sonera dates back to 1917, when Suomen Lennätinlaitos (Finnish Telegraph Agency) was founded. In 1927, the telegraph agency was merged with the Finnish Post to form a new agency, Post and Telegraph Agency. This agency governed all long distance and international calls until 1994, when competitors were allowed to enter the Finnish market. In the same year, the Post and Telegraph Agency was divided to form two companies, Suomen Posti Oy (Finnish Post), and Telecom Finland Oy. Telecom Finland then changed its name to Sonera in 1998. After the merger of Telia and Sonera During the run-up to the 2006 general election the Swedish liberal-conservative Alliance stated as one of its policy aims to reduce government ownership in commercial entities, and specifically to sell its stake in TeliaSonera. The Alliance went on to win the election and formed a coalition government. After the merger with Sonera, the Swedish State held 46% of the shares and with parliamentary approval the government sold down to 37.3%. Further divestment of TeliaSonera was however presented to the parliament only after the next election in 2010, when the Alliance lost its majority but stayed on as a minority administration. On 16 March 2011, the Alliance administration lost a parliamentary vote on sale of publicly owned commercial entities, including TeliaSonera, when a coalition of all opposition parties — the Left Party, Social Democratic Party, Green Party and Sweden Democrats — united against the Alliance. In the beginning of 2008, TeliaSonera announced measures to