Hebei Rubang Carbon Cov Khoom Co., Ltd. tau tsim nyob rau lub Yim Hli 2014 nrog rau npe peev ntawm 25 lab Yuan. Nrog Headquarter nyob hauv Cheng 'lub Nroog, Hebei Xeev, hu ua "North China Carbon Base", Nws muaj ob lub chaw pabcuam: Hebei Rubang Carbon Khoom Co., Ltd Panzhihua Ceg Npe Chaw Haujlwm thiab Handan Damai Carbon Co., Ltd.