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Ethical Risk Index

The Marshalls Ethical Risk Index (ERI) is the next step on the journey toward full supply chain transparency in the Natural Stone sector. Using a bespoke, independently reviewed scoring framework, customers are given a genuine insight into the multi-dimensional ethical challenges facing stone procurers; with the aim of apprising users of potential issues and with a clear rating system to allow for more informed decision making.


To distill the main frameworks driving ethical sourcing practice into a single bespoke framework, designed and tailored towards the challenges and issues specifically facing the imported stone industry. This includes the requirements of international law, the UN Global Compact principles, the Ethical Trading Initiative base code, and compliance with the Modern Slavery Act 2015.

To drive customer and stakeholder awareness of relative levels of ethical risk in stone supply; providing them with a more quantifiable view by scoring supply chains against key measures of ethical risk.

To better empower informed customer product selection by more clearly embedding ethical procurement considerations into the design and specification process.

To provide a benchmark for measuring improvements in standards going forward.

Marshalls lead the industry in ethical sourcing best practice and now invite stakeholders to learn more about the specific issues, risks and opportunities facing procurement in this area.

Risk Scoring


Multi-coloured rating scale

Scoring the ERI begins with an analysis at the Country-level, utilising various publicly available NGO-driven frameworks. From this, independent auditors, engaged to examine Marshalls supply chain, establish a baseline expectation of the cultural paradigm in that country. They can then delve into the supply chain and assess Marshalls’ stone quarrying and processing operations; also contrasting it against the quarries and manufacturers supplying stone products to the wider stone industry. Thus the final ERI score for each stone type is always contrasted against the non-Marshalls supply chains for that material.

To illustrate the relative level of ethical risk, the Ethical Risk Index score is initially displayed using a basic Risk Indicator. This provides a quick, simple insight into the degree of ethical risk associated with that stone type, and how the Marshalls supply chain compares to the cluster. If users require a more in-depth perspective, they can access the Ethical Radar which clearly displays the scoring for that product against each of the 10 measures making up the ERI score.

Stone Types

Ethical Risk Graph Image

Please select a stone type above to see the ERI

  • Marshalls Score
  • Cluster Score
Stone quarry with Indian workers


Do you understand your natural stone supply chain?

The Ethical Risk Index is the next step towards full supply chain visibility in the Natural Stone sector. Marshalls’ full commercial natural stone portfolio has been independently audited and scored based on ten ethical measures to gives customers the insight to make more informed decision making.


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