Poly Union Chemical Holding Group Co., Ltd. is a Chinese company engaged in the research, development, design, production, sale, distribution, and engineering services for civil explosive equipment. Its products include industrial explosives, detonators, detonating cords, and customized civil explosive products. The company also undertakes demolition works, transportation of dangerous goods and general cargo, ecological protection and environmental management, and provides blasting technology development and technical consulting services. Its products are used in mining, water conservancy and hydropower, infrastructure construction, urban reconstruction, national defense construction, and other fields. Formerly known as Guizhou Jiulian Industrial Explosive Material Development Co., Ltd., it changed its name to Poly Union Chemical Holding Group Co., Ltd. in December 2019. Founded in 2002, the company is headquartered in Guiyang, China.