Environmental Management


Overview

MMG believe that mining and environmental responsibility go hand in hand. From exploration to closure and beyond, we strive to minimise our footprint, protect biodiversity, and build resilience to climate change. Our approach is guided by our Safety, Security, Health, Environment and Community (SSHEC) Policy and embedded in our Sustainability Framework. We aim to minimise our environmental footprint, enhance biodiversity, and contribute to climate resilience through proactive planning, site-specific strategies, and transparent reporting.

Our approach is practical, proactive, and focused on leaving a positive legacy for the communities and ecosystems where we operate.


Why environmental management matters

Mining can have significant impacts on land, water, air, and biodiversity. Managing these impacts responsibly is essential, not just for compliance but for the health of our people, the wellbeing of communities, and for business sustainability. By planning carefully and acting early, we reduce risks and create opportunities for restoration and long-term environmental benefits.


What guides our approach

Environmental management at MMG is guided by our Safety, Security, Health, Environment and Community (SSHEC) Policy and embedded in our Sustainability Framework. These principles shape how we design, operate, and close our sites. We focus on practical actions that make a real difference, supported by strong systems and continuous improvement.

Key areas of focus for our environmental management include:

Using resources efficiently: We work to reduce energy and water use, optimise materials, and improve operational efficiency.

Managing waste and emissions: This includes safe tailings management, reducing greenhouse gas emissions, and controlling air pollutants.

Protecting nature biodiversity: We aim to avoid impacts where possible, restore disturbed land, and integrate traditional knowledge into land-use planning.

Building climate resilience: We assess climate risks and design infrastructure and processes that can withstand changing conditions.


Risk management and resilience

Environmental risks are part of every mining operation. MMG identify these risks early and integrate them into planning. Environmental risks are integrated into MMG’s ERM framework and site-level registers, including climate-related risks, water scarcity, biodiversity loss, tailings integrity, and air quality. MMG teams put measures in place such as flood control systems, progressive rehabilitation, and enhanced monitoring, to keep our sites safe and sustainable.


Training and culture

Good environmental management depends on people. Every site-based MMG employee and contractor receives environmental training as part of their induction and ongoing development. Topics include biodiversity protection, spill response, waste segregation, and air quality management. By building awareness and capability, we make sure everyone plays a role in protecting the environment.


Innovation for better outcomes

Technology is helping us improve environmental performance. We use digital tools to monitor water use, track emissions, and measure rehabilitation progress. We’re also exploring new approaches to waste reduction, renewable energy, and biodiversity restoration. These innovations help us reduce our footprint and deliver better results for people and nature.


Working with communities

Environmental stewardship is stronger when it’s shared. That’s why we work closely with host communities and rightsholders to co-design land-use plans, monitor environmental impacts, and implement conservation projects. Community feedback helps shape priorities and ensures programs reflect local needs and values.


Explore our approach:
Learn more about how we manage key environmental priorities.