A second Hudbay union has a tentative deal with the company.
USW Local 9338, which represents 115 office and technical workers, will vote on whether to ratify the deal Friday and Saturday.
The union has information meetings scheduled for Friday in Flin Flon and Saturday in Snow Lake.
Voting in Snow Lake will take place immediately following the information meeting. Voting in Flin Flon will take place Friday after the meeting and again on Saturday.
USW Local 9338 had backed a strike mandate last week.
Hudbay's largest union, USW Local 7106, votes Saturday, Sunday and Monday on a tentative deal with the company.
