By Yantoultra Ngui and Phuong Nguyen

Blackstone, CVC Capital Partners and Japan's MUFG are among bidders for a stake in Vietnamese fintech firm MoMo as it presses ahead with a partial sale, two people with direct knowledge of the matter said.

Binding bids are due in September, added the people, who declined to be named as the matter is private. MoMo, CVC and MUFG did not immediately respond to requests for comment, while Blackstone had no comment.