Sustainability

Our Decarbonisation Journey

Throughout Hallett’s 40 year history, we have sought to make a positive impact on people, society and the environment through our products and operations.

Hallett Group’s commitment to sustainability and corporate responsibility goes beyond compliance and is a voluntary pledge to make a positive impact on the world around us.

Driven by our long-held commitment to improving our environmental footprint and maximising our positive impact, we are now further accelerating our efforts towards net zero, acting in bold new ways across our value chain.

The Hallett Group has defined its sustainability strategy aimed at ongoing further reductions in CO₂ emissions. To support this commitment, Hallett Group is already investing >$125M to sustainability projects as part of the 2023 – 2025 Industrial Plan.

Our Journey to Net Zero

How to Get There
Proven track record in CO₂ emissions reduction.
Already reduced by 16% CO₂ emissions in 2021 vs 2002*

Next Chapter: New, Science Based, Reduction Targets
Targeting CO₂ emissions below 500kg per tonne for cementitious material by 2030, translating to another 28% reduction vs 2021 level*
Seek SBTi validation

Roadmap 2030 – 2050
Realistic path to turn ambition into reality

*emission values represent average of total cementitious used in concrete over year

Hallett Group’s Sustainability objectives are inline with independent VDZ Report released 2021;
Decarbonisation of the Australian Cement and Concrete Sector.

Roadmap to Net Zero

CO₂ Reduction Levers

One of Hallett’s key decarbonisation strategies is the substitution of the high and hard to abate clinker emissions with Supplementary Cementitious Materials (SCM).

With the ongoing decline and availability of traditional SCM’s;

• Flyash (coal burning power station closures)
• Blast Furnace Slag (conversion to EAF greener steel-making processes)

Hallett has made a long term commitment through the Green Cement Transformation Project to securing the ‘next generation’ of locally sourced Supplementary Cementitious Materials;

• Harvested Dam Ash – Pt Augusta
• Polymetallic Slag – Pt Pirie

Both materials exhibit compliant and effective SCM properties to the AS 3582.1 and AS3582.4 standard requirements. These materials will support clinker substitution at higher levels for decades to come.

 

Clinker Content in Cements

As a cement importer, the supply chain procurement policy plays a large part in controlling the carbon emission footprint of imported product. International and local cement suppliers must have their cements and SCMs independently verified for carbon emissions. Furthermore, a clear and justified Net Zero Roadmap must be implemented, preferably with CO₂ emissions reduction targets validated by Science Based Targets initiative (SBTi).

Future Decarbonisation Initiatives