AJ Advance Technology Public Company Limited, together with its subsidiaries, engages in the wholesale and retail of electric appliances under the AJ brand in Thailand. It retails and wholesales audio and visual products, such as home theatre sets, micro-components, speakers, portable radios, audio amplifiers, Bluetooth speakers, music boxes, karaoke audio sets and players, and other audio and visual products; home appliances, including air conditioners, refrigerators, washing machines, air purifiers, thermal bottles, blenders, induction cookers, electric pots, oil-free fryers, irons, steam iron blenders, water purifies, fans, gas stoves, and solar LEDs; and electric motorcycle bikes. The company also provides top-up services for prepaid phone and service prepaid kiosks. In addition, it is also involved in the distribution of sport shoes; retail of top-up machines; logistic and export business, including TV drama programs and other entertainment media businesses; provision of e-money services and accept payment through electronic methods; investment in digital assets; and mining and trading of digital assets, including investment or providing other services about cryptocurrency and digital token transactions. The company was formerly known as Crown Tech Advance Public Company Limited and changed its sport shoes name to AJ Advance Technology Public Company Limited in June 2017. AJ Advance Technology Public Company Limited was founded in 2001 and is headquartered in Bangkok, Thailand.