I aso nei, ua toe faaigoa Hebei Maoyang Environmental Technology Co., Ltd

Shijiazhuang Zhaoyang biogas Equipment Co., Ltd., na faavaeina i le 2009, o se atinaʻe tekonolosi maualuga a le atunuʻu. I aso nei, ua toe faaigoa o Hebei Zhaoyang Environmental Technology Co., Ltd