Four Shanghai courier firms had their licenses for airfreight services suspended because they failed to report inflammable materials in their cargo, causing a small fire on a China Southern Airlines flight after it landed in Dalian, Liaoning province. Police found that inflammable materials, including two lithium batteries banned onboard, led to the fire. YTO, Yunda Express, and the Huixing and Qihang courier firms will have to suspend their airfreight services until they improve their business procedures, the China Air Transport Association (CATA) announced. “All membership carriers of the Association should refuse to transport cargo for the four couriers during the suspension,” said the Association. Most Chinese airlines are members. CATA found the batteries were transported by YTO Express, while the other firms also had concealed prohibited materials.