AJ Advance Technology Public Company Limited, listed as AJA.BK, is a Bangkok-headquartered Thai corporation founded in 2001. The company primarily engages in the wholesale and retail distribution of various electronic goods and appliances under its "AJ" brand across Thailand. Its product portfolio spans consumer electronics, including home theater systems, an assortment of audio devices such as speakers, Bluetooth speakers, portable radios, and karaoke sets, along with a wide range of home appliances like air conditioners, refrigerators, washing machines, air purifiers, and kitchen essentials such as blenders, induction cookers, electric pots, and oil-free fryers. Additionally, it sells electric motorcycle bikes and solar LED products. Beyond its core product offerings, AJ Advance Technology delivers a diverse array of services. These encompass providing top-up services for prepaid mobile phones through kiosks and selling the top-up machines themselves. The company is also active in the distribution of athletic footwear, operates logistics and export ventures, and produces entertainment media, including TV dramas. Expanding into financial technology, it offers e-money services, processes electronic payments, and is involved in the investment, mining, and trading of digital assets, including cryptocurrencies and digital tokens, along with providing related transactional services. The company was previously known as Crown Tech Advance Public Company Limited before adopting its current name in June 2017.