Qingdao Doublestar Co, Ltd is principally engaged in the manufacture and sale of tires. The Company operates in three segments. The Tires segment consists of all-steel radial tires and semi-steel radial tires. The Machinery segment is engaged in the development, design, manufacture, installation and consulting of casting machinery, rubber and plastic machinery, environmental protection machinery, as well as digital tire tools. The Automotive Aftermarket Services segment is engaged in installation, repair and maintenance of tires. The Company distributes its products within the domestic market and to overseas markets.