Na Julaị 2021, Sistemụ Njikwa Ogo anyị, Sistemụ Njikwa Gburugburu Ebe obibi na Sistemụ Ahụ Ike na Safety Management ka enyochala usoro ISO 9001:2015, ISO 14001:2015 na ISO 45001:2018. Na Zonpak anyị na-emeziwanye njikwa anyị mgbe niile iji jeere ndị ahịa na ndị ọrụ ozi nke ọma.
Oge nzipu: Ọgọst-05-2021