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Our approach

Sustainability assurance

How sustainability information is prepared, against what it is structured, and what can and cannot be claimed about it.

How information is preparedThe reporting referencesWhat we hold, and what we do notPerformance data

How information is prepared

Sustainability information is prepared on a consistent basis, traceable to source records and comparable between reporting periods, and the records underlying it are maintained accordingly. Controls over sustainability information are designed so that an assurance engagement can be performed under International Standard on Sustainability Assurance 5000.

An assurance engagement has not been performed and no assurance opinion has been obtained. That is a statement of fact rather than of intent, and it is made here so that a reader does not have to infer it from the absence of an opinion elsewhere.

Key facts

Controls are designed for ISSA 5000. No assurance engagement has been performed.

No ISO certification, no framework membership, no published sustainability report.

Reporting is structured against the Swiss regime, IFRS S2, ESRS and GRI. We do not report under any of them.

Performance metrics are not published where the underlying activity does not generate them; the methodology and records are in place.

The reporting references

Reference
What it governs
How we use it
Swiss non-financial reporting and climate disclosure requirements
Reporting on non-financial and climate matters for companies within their scope
The regime against which our reporting is structured. We are privately held and do not meet the size criteria that bring a company within scope.
Swiss due diligence requirements on conflict minerals and child labour
Due diligence and reporting on minerals and metals from conflict-affected and high-risk areas, and on child labour
Applied where we fall within those provisions, which attach conditionally by import volume, processing activity and entity size
IFRS S2 Climate-related Disclosures
Climate-related governance, strategy, risk management, metrics and targets
The structuring reference for the Climate Action Transition Plan and our climate information. We do not report under IFRS S2
European Sustainability Reporting Standards, in particular ESRS E1, S2 and S3
Climate change, workers in the value chain, affected communities
A structuring reference for the presentation of sustainability information. We do not report under them
GRI Standards, including GRI 14 Mining Sector 2024
The structure and content of sustainability reporting
The reference against which sustainability information is organised. No GRI-referenced report is published
Greenhouse Gas Protocol, Corporate Standard and Scope 3 Standard
Greenhouse gas accounting
The methodology applied to the emissions inventory
International Standard on Sustainability Assurance 5000
Sustainability assurance engagements
The standard for which the controls over sustainability information are designed
IFRS Foundation guidance on climate-related transition disclosure
The presentation of transition plan information
A structuring reference for the Climate Action Transition Plan

What we hold, and what we do not

A framework is only useful if what it claims can be checked, so the position is stated plainly.

Held
Not held
A Code of Conduct, a suite of Group policies, a Supplier Code of Conduct, a voluntarily published Modern Slavery Statement and a Climate Action Transition Plan, each issued under the authority of executive management
Certification to ISO 14001, ISO 45001, ISO 37001 or ISO 37301. Those standards are references against which the corresponding arrangements are structured
A risk register in which environmental, social, human rights, supply chain and climate risks are recorded
Membership of the International Council on Mining and Metals
Records of engagement, grievances, due diligence and corrective action
Participation in the UN Global Compact or in the Voluntary Principles on Security and Human Rights. Policies are aligned with the standards those bodies publish, and the alignment is stated as alignment
Controls designed for an ISSA 5000 assurance engagement
Status as an Extractive Industries Transparency Initiative supporting company
An emissions accounting methodology under the Greenhouse Gas Protocol
A published sustainability report, an external assurance opinion, or a validated science-based target

ISO 31000, ISO 20400, ISO 37002 and ISO 30415 are guidance documents and provide no basis for certification at all. Where the copy in this section names them, it names them as guidance.

Performance data

Where an activity generates quantified performance reporting of the kind published by an operating mining group, it is published. That includes emissions intensity, injury frequency and severity rates, water withdrawal and consumption volumes, waste volumes and workforce composition statistics. The methodologies, the boundaries and the record-keeping are established, so that each measure is produced on a defensible basis.

Where a target would be validated

Where a climate target is submitted for external validation, the applicable version of the Science Based Targets initiative Corporate Net-Zero Standard is identified and the basis of submission recorded. No target has been set or submitted. Where project financing is arranged with a financial institution that has adopted the Equator Principles, the environmental and social requirements that institution applies would attach to that financing; we are not a signatory to the Equator Principles, which bind adopting institutions rather than borrowers.