HANOI/HONG KONG :CVC Capital Partners has exited Vietnam's fourth-biggest private commercial lender, Asia Commercial Bank (ACB), after disposing of its remaining 4.99 per cent stake for around $220 million, three people with knowledge of the matter said. The Europe-based alternative investment firm disposed of the stake via a unit called Sather Gate, the three people said. The buyer is a U.S.-based institutional investor, according to two of the people. The people declined to be identified as the matter was private. CVC declined to comment on Friday and ACB did not immediately respond to a request seeking comment.