The three new ENCs cover the ports and approaches to Vung Tau, which includes the main container port of Cai Mep, and are only available through the Admiralty Vector Chart Service.
UKHO says that the new ENCs have been produced in response to increasing demand from shipping companies for chart data for the region.
"Vietnam continues to outperform many economies around the world. Increased shipping trade plays a key role in maintaining that growth so fully compliant digital coverage of this area is an important addition for many shipping companies," said Guy Edwards, head of Admiralty Asia Pacific, Singapore.
"We worked closely with our colleagues in the Vietnam Maritime Safety Authority to produce these ENCs to cover the key hub of Vung Tau and container port of Cai Mep, which represent a major gateway to trade in southern Vietnam."
The Admiralty Vector Chart Service contains over 11,500 ENCs and coverage of over 2,950 of the world's ports.