ZEN Corporation Group Public Company Limited operates restaurants in Thailand and internationally. It operates restaurants under the ZEN, ZENBOX, AKA, Musha, Tetsu, Sushi Cyu, On the Table, Din's, Foo Flavor, Tummour, Pho, LaoYuan, De Tummour, Jaew Hon, Khiang, and Khiang Kang-Tai brand names. The company is also involved in the retail of ready-to-cook and ready-to-eat food products. In addition, it offers delivery services through online channels; catering services for various events, such as weddings, corporate parties, conference, festive parties, and birthday parties; and restaurant management and consultancy services for restaurant operators or franchisees. As of December 31, 2021, the company operated 349 restaurant branches. ZEN Corporation Group Public Company Limited was founded in 1991 and is headquartered in Bangkok, Thailand.