Diatreme Resources issued a supplementary bidder's statement as an extension of its original bid to acquire Metallica Minerals (ASX:MLM).

The supplementary statement details their offer of 1.3319 Diatreme shares for each Metallica share. Shareholders are advised to review the offer promptly and seek professional advice.

Diatreme has launched an institutional acceptance facility for investors holding a minimum of 20,000,000 Metallica shares.

The facility allows eligible institutional shareholders to signal their acceptance of the offer before it becomes unconditional.