D&G Technology Holding Company Limited, through its subsidiaries, researches, develops, manufactures, distributes, and leases asphalt mixing plants and other equipment in Mainland China and internationally. Its products include conventional hot-mix asphalt and recycling hot-mix asphalt mixing plants, as well as spare parts, modified equipment, and asphalt specialty equipment. Founded in 1999, the company is based in Sheung Wan, Hong Kong, and operates as a subsidiary of Prima DG Investment Holding Company Limited.