Thailand’s regularor, the NBTC Secretariat, represented by General Sukit Khamasundara, and the Radio Amateur Society of Thailand under the Royal Patronage of His Majesty the King (RAST), led by its President, Jakkree Hantongkom and accompanied by committee members of the society, participated in a ceremony for His Majesty King Vajiralongkorn to present an advanced class amateur radio licence and the callsign HS10A to His Majesty at Dusit Palace on September 24, 2020.
RAST, with the support of G Simon Radio Company Ltd, also donated amateur radio equipment, being an Icom IC-7300 HF transceiver and an IC-9700 VHF/UHF transceiver, along with antennas and other equipment, to His Majesty King Vajiralongkorn, the patron of RAST, in the Amphon Sathan Hall at Dusit Palace.
source: https://qsl.net/rast/