Yantai Weixiang Building Engineering Machinery Equipment Co., Ltd inahudumia sekta zote za Ubomoaji, Uendeshaji wa rundo, Usogezaji Dunia, Usafishaji, Misitu, Madini na Sekta ya Ujenzi, ni mtengenezaji anayeongoza wa viambatisho vya uchimbaji huko Yantai, Uchina, inashughulikia eneo la 5000. mita za mraba, iliyoanzishwa mnamo 2009.