03:49 PM EST - Opta Minerals Inc. : and WGI Heavy Minerals, Incorporated jointly announced today that Opta Minerals has formally commenced its offer to acquire all of the outstanding common shares of WGI for $0.60 in cash per share The Offer is open for acceptance until 5:00 p.m. (Toronto time) on August 29, unless the Offer is extended or withdrawn. Opta Minerals Inc.
shares T.OPM are trading unchanged at $0.50.
