Mammila takes over the position from Peter Koutroulis, who left Chippa late last year.
He was previously serving in the same role at fellow Absa Premiership strugglers Baroka.
Bakgaga earlier today confirmed Mammila's departure.
"We are delighted to announce the appointment of Morgan Mammila who takes over as CEO of Chippa United Football Club," Mpengesi said.
"Mr Morgan Mammila brings with him a wealth of experience having done well at Baroka FC.
"He does not only understand the game but is a shrewd businessman and we have no doubt he will help strengthen our administration and steer the ship forward.
"Chippa United is the pride of the province, and development of local talent is of paramount importance. Mr Mammila is expected to drive this development project.
"It is important that the football club remains a beacon of hope to the aspiring footballers in this province and beyond its borders."