Vinacomin – Nui Beo Coal JSC (HNX: NBC) is a coal mining company under Vietnam National Coal & Mineral Industries Group (Vinacomin) — a State-owned mining & industrial group.

NBC has transitioned from open-cast mining to underground mining. In 2021, NBC shut down its open-cast mine in Ha Long and recorded its one-millionth tonne of underground-mined coal.

With the end of open-cast mining, NBC’s underground mine will be its key earnings driver starting in 2022. The full transition to underground mining will support NBC’s earnings by improving production capacity and coal selling prices thanks to higher-quality coal from deeper coal seams.