How to Become a Mining Supervisor in Queensland
If you've been working on mine sites for a few years and you're ready to step up, a supervisor role is the natural next move. Better pay, more responsibility, and a career path that can lead all the way to mine management. But you can't just put your hand up, there's a formal qualification you need first. Here's how to get there.
What does a mining supervisor actually do?
A mining supervisor is responsible for a crew and their work area on shift. That means:
Making sure your crew works safely and follows site procedures
Running pre-start meetings and toolbox talks
Allocating tasks and managing the shift plan
Identifying and managing hazards in your work area
Investigating incidents and near misses
Communicating with other supervisors, management, and site systems
Making real-time decisions when things don't go to plan
It's the transition from doing the work to leading the people who do the work. You're the person the crew looks to when something goes wrong, and you're the person management holds accountable for what happens on your watch.
Which qualifications do I need to become a supervisor?
The main one is the G189 Mining Supervisor course, also known as the S123, S1 S2 S3, or G1 G8 G9. This is the mandatory supervisor qualification required under Queensland mining legislation for anyone appointed to direct or supervise workers on a Coal or metalliferous mine site.
The G189 covers three units of competency:
RIIRIS301E: Apply risk management processes
RIIWHS301E: Conduct safety and health investigations
RIICOM301E: Communicate information
Can I do my Standard 11 Surface online?
Yes, the Standard 11 Surface can be completed 100% online. All six units of competency are delivered through an online learning platform, and your Statement of Attainment is issued on completion. No classroom, no travel, no fixed schedule.
Core Crew Training delivers the full Standard 11 Surface entirely online. Most students complete the full course in two to five days at their own pace.
You'll also need to hold a current Standard 11 mining induction but if you've been working on mine sites, you'll already have this.
Some sites and employers may also want you to hold:
G2 Risk Facilitator - for leading risk assessments and toolbox talks
First aid - current first aid certification
Working at Heights / Confined Spaces - depending on the role
HR or HC licence - if the supervisor role involves driving heavy vehicles
Check with your employer or the specific site for their requirements. The G189 is the non-negotiable one, everything else varies by role.
Do I need experience before I can become a supervisor?
There are no formal experience prerequisites for the G189 qualification itself. Anyone over 18 with Year 10 level literacy and numeracy can enrol. But realistically, employers expect supervisors to have solid operational experience before stepping up.
Most mining supervisors have 3 to 5 years of mine site experience before moving into their first supervisor role. You need to understand how the operation runs, how the equipment works, and how crews function before you can lead one.
The ideal pathway looks like:
Get your Standard 11 and start working on a mine site.
Build 3 - 5 years of operational experience - learn the operation, the equipment, and the people.
Complete your G189 - get formally qualified before or while you're being considered for supervisor roles.
Apply for supervisor positions - with the qualification and experience together, you're a strong candidate.
Consider further qualifications - G2 Risk Facilitator, Advanced Diploma, or Certificate of Competency depending on where you want your career to go.
How much do mining supervisors earn?
Here's the rough yearly salary range for Queensland:
Mining supervisor (entry): $130,000 – $160,000
Mining supervisor (experienced): $150,000 – $200,000
Shift boss / senior supervisor: $160,000 – $210,000
Superintendent: $180,000 – $250,000
Compare that to a typical operator role at $100,000 – $140,000, and the pay jump for stepping into supervision is significant. The G189 qualification costs $600 and takes a couple of weeks to complete. The return on that investment is hard to beat.
Can I do the G189 while I'm still working on site?
Yes, and that's how most people do it. Core Crew Training delivers the G189 100% online and fully self-paced. There are no classroom days, no fixed schedule, and no time off work required.
Most students complete it between shifts, on days off, or during their break. The coursework takes around 16 to 24 hours of study. You can knock it out in a few focused days or spread it over a couple of weeks, whatever fits your roster.
Your Statement of Attainment is issued the same day you finish. No waiting weeks for paperwork.
Should I get my G189 before applying for supervisor jobs?
Yes. Having the qualification before you apply puts you ahead of candidates who don't have it yet. An employer looking to fill a supervisor role wants someone who can start immediately, not someone who needs to go away and complete a course first.
Getting your G189 proactively also shows initiative. It tells your employer that you're serious about stepping up and you've invested in yourself to make it happen. That matters when promotion decisions are being made.
If you're already being considered for a supervisor role at your current site, having the G189 done before the conversation happens makes the decision easier for your manager.
What comes after the G189?
The G189 is the first step on the mine management pathway. Once you've gained experience as a supervisor, the career progression looks like this:
G189 Mining Supervisor → your entry into formal supervision and the starting qualification for leadership roles on site.
G2 Risk Facilitator → adds the ability to lead formal risk assessments. Many sites want supervisors to hold both the G189 and G2.
Advanced Diploma of Surface Coal Mining Management (RII60726) → the AQF Level 6 qualification for mine managers, deputies, and senior statutory roles. This is the qualification that opens the door to Site Senior Executive and mine manager positions.
Certificate of Competency → issued by the Queensland Board of Examiners for statutory positions like First Class Mine Manager or Open Cut Examiner. Requires the Advanced Diploma plus passing the Board exam.
You don't need to plan the whole pathway right now. But knowing where the G189 leads helps you see the bigger picture. It's not just a ticket to get, it's the first step toward running the operation.
Ready to step up?
Core Crew Training (RTO 45671) delivers the G189 Mining Supervisor course 100% online. Complete it from anywhere, at your own pace, and get your Statement of Attainment the same day you finish.
$600. Afterpay and Klarna available.
Already a supervisor looking to go further? Check out the Advanced Diploma of Surface Coal Mining Management.
Already have your G189 and looking to get your G2. We offer this course 100% online as well. G2 Enrolment.
Not sure which qualification you need? Get in touch and we'll help.
