SOS Limited operates as a blockchain-based and big data-driven marketing solution provider in the People's Republic of China. The company offers marketing data, technology, and solutions for insurance companies and emergency rescue services. It also provides SOS cloud emergency rescue service software as a service platform that offers basic cloud products, such as medical rescue, automobile rescue, financial rescue, and rescue mutual aid card services. In addition, the company offers cooperative cloud systems, including information rescue center, intelligent big data, and intelligent software and hardware; information cloud systems, such as news today and e-commerce today; information security services, and marketing-related data; and technology and solutions for emergency rescue services, such as insurance, finance, medical care, health, automobile, safety and mutual aid, and builds a rescue service system. Further, it provides blockchain and cryptocurrency operations, including hosting service to cryptocurrency miners; commodities trading products, such as mineral resin, soy bean, wheat, sesame, and liquid sulfur and latex; telecommunication, insurance, and bank call services; and rescue cards. The company serves large businesses, and small and medium-sized enterprises. SOS Limited was founded in 2004 and is headquartered in Qingdao, the People's Republic of China.