The Perth Mint has reported on its greenhouse gas emissions and supply chain management practices, highlighting improvements in emissions reduction and supplier due diligence. The company’s scope 1 and 2 emissions were calculated using 2025 National Greenhouse Accounts Factors (NGAs), with a slight increase in overall emissions compared to the previous year. The refinery maintenance manager, Steve Owen, identified an opportunity to reduce reliance on diesel to power chiller units, leading to a 16% decrease in scope 1 emissions due to a 74% reduction in natural gas use at the East Perth site.
Material actions and disclosures
The company has engaged Bureau Veritas to perform independent limited assurance over its scope 1 and 2 emissions data and completed a scope 3 emissions relevance assessment in accordance with the GHG Protocol Scope 3 Accounting Framework. The most relevant scope 3 categories identified were purchased goods and services and upstream and downstream transport and distribution.
The Perth Mint also reported on its responsible sourcing practices, which include relevant policies, sustainability reports, and background information collected through desk-based reviews and two-day minesite visits. Nearly 99% of the gold doré processed in the refinery originated from large-scale mining operations in low-risk jurisdictions.
Additionally, the company has continued to advance its inclusive procurement practices through its Innovate Reconciliation Action Plan (RAP), with 25% of deliverables completed, exceeding the 15% target.
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