Guiyang Yushun Gas (贵阳宇顺气体有限公司) produces and supplies gases in Guizhou and is based in Qingzhen near Gui’an New Area. Its range covers specialty, high-purity, standard, medical, electronic, industrial and liquefied gases, as well as fire-fighting gases, cylinder testing and gas supply equipment. The company runs mixed-gas and high-purity gas preparation centres and a gas quality testing centre. Its carbon dioxide and IG-541 inert gas extinguishing agents hold fire product certifications 5982023ZY110023 and 5982023ZY110022 from the Tianjin Fire Research Institute of the Ministry of Emergency Management.