NT filed a complaint with the Arbitral Tribunal on Sept 27, 2018, claiming additional revenue share from roaming services from AIS. The additional revenue share amounted to some 16.25 billion baht with a penalty interest rate of 1.25% per month. The complaint was based on the seventh amendment to the main concession agreement from July 2013 to September 2015.
On Feb 11, 2020, NT’s claims were dismissed. Its petition to the Thai Central Administrative Court to revoke the arbitration award was also dismissed on Dec 20, 2023. NT subsequently filed an appeal against the Central Administrative Court's judgment with the Supreme Administrative Court.
Shares in Singtel closed 3 cents higher or 1.03% up at $2.95 on July 12.