In June 2020, CIE signed a strategic cooperation agreement with Yongfeng Group Co., Ltd. According to the cooperation agreement, CIE will undertake the advantageous sintering, pellet design, supply of main equipment of sintered pellets, desulfurization and denitrification of sintered pellets, power generation from sintering waste heat, lime kiln, solid waste treatment (iron increase and zinc reduction) and intelligent manufacturing in the implementation stage of Lingang Project of Yongfeng Group.