SOS Limited is a blockchain-based and big data-driven marketing solution provider operating in the People's Republic of China. It offers marketing data, technology, and solutions for insurance companies and emergency rescue services, along with a cloud emergency rescue service software-as-a-service platform featuring medical, automobile, and financial rescue, and rescue mutual aid card services. The company also provides cooperative cloud systems, information cloud systems, information security services, and technology and solutions for emergency rescue services. Additionally, it engages in blockchain and cryptocurrency operations, including hosting services for cryptocurrency miners, commodities trading products such as mineral resin, soy bean, wheat, sesame, liquid sulfur, and latex, telecommunication, insurance, and bank call services, and rescue cards. SOS Limited was founded in 2004 and is headquartered in Qingdao, the People's Republic of China.