Qingdao Doublestar Co., Ltd manufactures and sells tires in China and internationally. It offers truck all-steel and passenger semi-steel radial tire series. The company is also involved in the research, design, manufacturing, installation, and consultation of rubber and plastic, foundry, and environmental protection machinery and equipment, as well as digital tire molds. In addition, it engages in the real estate business. The company is based in Qingdao, China.