THE CFMEU has slammed BHP's ploy to hold employee ballots during school holidays when many coal miners are on holiday with their families.
CFMEU district president Stephen Smyth condemned the multinational's tactic of holding an attendance ballot when an estimated 20% of its workplace was on annual leave.
BHP will conduct an employee ballot from September 29 to October 5, after the mining giant recently walked away from union negotiations over changes to their working conditions.
Queensland school holidays run until October 3.
The CFMEU is calling on BHP to extend its voting period by an extra week to cater for its workers on leave.
Update your news preferences and get the latest news delivered to your inbox.