March 18 (Reuters) - The following bids, mergers,

acquisitions and disposals were reported by 0930 GMT on Monday:

** Vietnam's biggest conglomerate Vingroup has sold

its 41.5% stake, including other assets, in its Vincom Retail

unit, for $1.6 billion, a company official said on a

call with analysts.

** Japanese chip materials maker JSR said that

state-backed fund JIC would launch a tender offer for its shares

on March 19 as it no longer requires approval from Chinese

regulators.

** Aviva has completed the sale of its stake in

Singapore Life Holdings, plus two debt instruments, for a

combined 937 million pounds ($1.19 billion), the British insurer

said in a statement.

** Canadian payments technology company Nuvei ( NVEI ) said

on Sunday it was evaluating proposals that would take the

company private, after reports said that private equity firm

Advent International was in advanced talks to buy the company.

(Compiled by Rajarshi Roy in Bengaluru)