Osisko Mining's shareholders can expect mail in the near future.
The company has fired off a letter recommending they reject the unsolicited bid from Goldcorp.
Osisko states the $2.8 billion offer fails to recognize the value of it's Canadian Malartic mine in Quebec.
The letter adds that Goldcorp also made three previous offers, all of which Osisko says would have been "value destructive" to shareholders.
The matter is also before a Quebec court while Goldcorp has extended its offer until March 10.