Kingdom Holdings Limited, an investment holding company, engages in the manufacture and sale of linen yarns in Mainland China, the European Union, and internationally. Its products include wet spun and organic linen yarns; and wet spun and organic hemp yarns. The company offers its linen yarns under the Black Land brand. In addition, it engages in trading activities; sale of industrial hemp; and manufacture and sale of fabrics. Kingdom Holdings Limited was founded in 1978 and is headquartered in Haiyan, the People's Republic of China.