Crazy Sports Group Limited, an investment holding company, operates as a digital sports entertainment service operator in the People's Republic of China. The company is involved in the development and operation of mobile applications and software; advertisement and entertainment production; and provision of technical, promotional, and advertising services. It operates Crazy Red Insights APP, a paid sports information platform; Crazy Sports APP, a sports social interactive platform; operates and publishes sports and leisure games; and sells services of lottery tickets through retail channels.