Linyi Branch of Shandong Spring Tao Agricultural Science and Technology Group Co. ,Ltd. was founded in 2007, located in Linyi City Industrial Park, Liguan Town, Lanshan district,which is the key investment project, mainly engaged in chickens, ducks and pigs feed production, covers an area of 76 mu, production capacity of an annual output of 240 thousand tons of feed. Sales network covers all towns and the surrounding counties in Lanshan District , 2000 farmers build up family fortunes from this and has good social benefit.