N'afọ 1985, Cheng'an County Ruiton Carbon Co., ltd. hiwere.

N'afọ 1999, a na-etinye ihe ọmụmụ ihe anyị na-eme.

N'afọ 2004, ụlọ ọrụ anyị gbanwere aha ya na Hebei Rounon Carbon Co., LTD., na mbipụta ntọala ụlọ ọrụ anyị na-edobe.

N'afọ 2006, anyị nwetara ikike nke ibubata na mbupụ na omenala. Anyị malitere mbupụ ngwaahịa anyị na Germany, Czech Republic anyị, Poland, Brazil, Japan, South Korea, Vietnam na mba ndị ọzọ sochirinụ.

N'afọ 2011, anyị malitere itinye aka na nkwekọrịta na akpaaka.

Na 2022, ụlọ ọrụ anyị mezuru mgbanwe dijitalụ nke osisi niile.