China National Coal Construction Association(CCCA)and China National Coal Construction Association Engineering Quality Supervision Station by "China coal JianXie [2016] no. 107" file, announced the 2015-2016 coal industry high quality engineering and the "Solar Cup" project list. Our company designed Zhongyuan return air shaft for Shaanxi Changwu Tingnan Coal Mine Company also won both 2015-2016 coal industry high quality engineering and the "Solar Cup" .