Chifeng Lituo Mining Co., Ltd., established in 2009, is located in the multi-metal mining area of silver, lead and zinc at the southern foot of Greater Khingan Range. The ore body is wholly mineralized. The geological grade of the deposit is also low. In September 2020, the company introduced "X104 Intelligent Sorting Machine" to carry out photoelectric separation on the ores in the crushing link of the concentrator, and discard the tailings in advance. The low grade resources were exploited and utilized, and the service life of the mine has been increased. Also, it has achieved good economic and social benefits.