(Telecompaper) Thai operator True has announced that the board of directors of its mobile unit True Move H Universal Communication has approved the company's participation in the 5G spectrum auction to be held by regulator NBTC on 16 February. Total Access Communication (Dtac) has also announced that its mobile subsidiary dtac TriNet will submit the relevant documents to the Office of NBTC on 4 February, to participate in the auction and apply for spectrum license(s), while Advanced Info Service (AIS) said its mobile unit Advanced Wireless Network (AWN) has submitted an application to participate in this auction.