The question posed to different groups of workers at each mine site was whether they authorised the industrial action of conducting work stoppages of 4-12 hours in duration.
Construction, Forestry, Mining and Energy Union Queensland district president Stephen Smyth was pleased with the result.
He told ILN there was around 90% approval from each of the different workforces.
BMA’s Blackwater, Crinum, Gregory, Goonyella/Riverside, Norwich Park, Saraji and Peak Downs operations could all face protected industrial action over a 30-day period as under the Fair Work Act.
Smyth previously indicated this action could consist of rolling stoppages of various durations along with overtime bans.
The union leader previously told ILN that the members at each mine would decide what industrial action to take.
Ongoing negotiations over the new BMA central enterprise agreement started around November/December and the encompassing EA expired on May 16.
Unlike other disputes over EAs in the mining industry, the CFMEU has teamed up with the Electrical Trades Union and Australian Manufacturing Workers' Union to form a single bargaining unit to negotiate with BMA over the central agreement.