Materiality assessments form the foundation of an effective ESG company programme. Without understanding which environmental, social, and governance issues truly matter to your business and stakeholders, companies risk producing unfocused sustainability reports that fail to address the topics that drive business value and stakeholder decisions.
This guide explains how to conduct your first materiality assessment, with practical examples relevant to South African business contexts.
What Is Materiality in ESG Reporting?
Materiality identifies which ESG topics significantly affect your business performance and stakeholder decisions. A material issue is one that could reasonably influence the decisions of investors, customers, employees, regulators, or communities engaging with your company.
Think of materiality as a filter. Hundreds of potential ESG topics exist, from carbon emissions to data privacy to supply chain labour practices. Your company cannot address everything equally. Materiality assessment helps you focus resources on issues that are a priority to your business and your stakeholders.
Consider two companies. A mining operation faces material risks from water scarcity, community relations, and mine closure rehabilitation. A software company’s material issues center on data security, employee retention, and energy consumption in data centers. Both conduct ESG reporting, but their focus areas differ fundamentally based on what drives value and risk in their specific business models.
Why Materiality Assessment are important.
Materiality assessment serves several critical functions beyond simply deciding what to report.
Strategic focus: Understanding material issues help to allocate sustainability investments effectively. A transport company discovering that fuel efficiency and driver safety rank as top material issues can prioritize fleet optimization and training programs over less relevant initiatives.
Stakeholder credibility: Investors and other stakeholders assess whether your ESG reporting addresses topics they care about. Reports that skip material issues while discussing peripheral topics lose credibility quickly.
Regulatory alignment: Emerging ESG regulations increasingly require materiality-based reporting. The International Sustainability Standards Board (ISSB), which South Africa is considering adopting, explicitly requires companies to report material sustainability information.
Risk management: The materiality process often reveals risks that haven’t received adequate management attention. A manufacturing company might discover through stakeholder interviews that water pollution concerns are significantly higher than management realized, prompting stronger environmental controls.
Single Versus Double Materiality
Understanding materiality requires grasping an important distinction that’s reshaping ESG reporting globally.
Single materiality (also called financial materiality) focuses on ESG issues that affect your company’s financial performance. This asks: which sustainability topics could impact our revenue, costs, assets, liabilities, or access to capital? An example would be carbon pricing regulations that increase operational costs, or water scarcity that disrupts production.
Double materiality adds a second dimension by also considering your company’s impacts on the environment and society. This asks: which sustainability topics are significantly affected by our business activities? An example would be a mine’s impact on local water availability, even if water remains abundant enough that the mine faces no operational risk.
European regulations now require double materiality reporting. South African companies with European customers or operations increasingly face these expectations. However, many first-time reporters start with single materiality because it’s simpler and aligns with investor-focused reporting standards like SASB.
For your first materiality assessment, focus on financial materiality unless you have specific reasons to address impact materiality. You can expand to double materiality in future reporting cycles as your ESG reporting capacity develops.
Step 1: Identify Potential Material Topics
Begin by creating a comprehensive list of ESG topics potentially relevant to your business. Don’t filter yet; that comes later. At this stage, cast a wide net.
Industry-specific topics: Look at sector peers’ ESG reports to identify common themes. Mining companies typically address water management, land rehabilitation, community impacts, and occupational health. Tourism businesses focus on biodiversity, cultural heritage, local employment, and waste management. Financial services address responsible lending, data privacy, financial inclusion, and climate risk exposure.
Regulatory requirements: Review ESG disclosure requirements affecting your company. JSE-listed companies must consider King IV governance principles. Companies with European exposure should understand EU sustainability regulations. Sector-specific regulations also matter – environmental licenses often specify reporting on specific impacts.
ESG reporting frameworks: Review GRI Standards, SASB Standards for your sector, and TCFD recommendations to identify recognized ESG topics. These frameworks provide structured lists based on extensive stakeholder consultation.
Value chain considerations: Think beyond your direct operations. Retailers may face material issues in supply chain labour practices. Manufacturers might have significant emissions from product transportation and use.
For a practical starting point, most companies’ material topics fall into these categories:
Environmental: Climate change and emissions, energy management, water usage and quality, waste and circular economy, biodiversity and land use, pollution prevention.
Social: Occupational health and safety, labour practices and human rights, diversity and inclusion, employee development and retention, community relations and investment, customer privacy and data security, product quality and safety.
Governance: Board composition and effectiveness, business ethics and anti-corruption, risk management, regulatory compliance, stakeholder engagement, executive compensation.
Create your initial list of 20 to 30 potential topics relevant to your sector and business model.
Step 2: Engage Internal Stakeholders
Before conducting external stakeholder engagement, gather internal perspectives on material issues. This shapes your understanding of business impacts and prepares you for external conversations.
Conduct interviews or workshops with executives and senior managers across functions. Include operations, finance, human resources, risk management, sales and marketing, procurement, legal and compliance, and investor relations.
Ask them specific questions.
- Which ESG issues could significantly impact our financial performance in the next five years?
- What sustainability topics come up most frequently in customer conversations?
- What ESG risks keep you awake at night?
- Where do we face potential regulatory changes?
- What sustainability issues affect our ability to attract talent or secure investment?
Operations teams often identify environmental and safety risks. Finance and investor relations highlight topics that come up in investor meetings. Human resources surface social issues affecting recruitment and retention. Sales teams hear customer sustainability requirements. This cross-functional input provides internal perspective on materiality before you test it with external stakeholders.
Step 3: Engage external stakeholders.
External stakeholder engagement reveals which ESG issues affect decisions made by people outside your organisation. Different stakeholder groups care about different topics, and their perspectives often surprise internal teams.
Identify key stakeholder groups relevant to your business. Most companies engage investors and lenders, customers and clients, suppliers and business partners, local communities, regulators and government, civil society organizations, and industry associations.
Select engagement methods appropriate for each group. Investors might participate in surveys or one-on-one interviews. Community members might engage through public meetings or local leader interviews. Customers can be surveyed through existing relationship channels.
Ask clear questions about ESG priorities. Which environmental, social, or governance issues most influence your decisions regarding our company? What sustainability information do you need that you’re not currently receiving? What ESG risks or opportunities do you see for our business? Where should we improve our sustainability performance?
A mining company conducting stakeholder engagement might discover that investors prioritize climate transition planning and water risk management, while communities focus on local employment, rehabilitation guarantees, and health impacts. Customers might emphasize responsible sourcing verification. Each stakeholder group brings distinct perspectives that shape your understanding of materiality.
For first-time assessments, focus on depth over breadth. Thorough engagement with 30 to 50 stakeholders across key groups produces better insights than superficial surveys of hundreds.
Step 4: Assess business impact.
While stakeholder perspectives reveal what matters to external audiences, you also need internal assessment of how ESG issues affect business value and risk.
Evaluate each potential material topic against specific criteria.
Financial impact: Could this issue significantly affect revenue, costs, asset values, or access to capital?
Operational impact: Could this issue disrupt operations or supply chains?
Regulatory risk: What’s the likelihood of new regulations affecting this topic?
Reputational risk: Could this issue significantly affect brand value or stakeholder trust?
Strategic opportunity: Could strong performance on this issue create competitive advantage?
Use a simple scoring system. Rate each topic as high, medium, or low impact across these criteria. This assessment requires judgment but involve multiple perspectives to balance individual biases.
A logistics company might assess fuel efficiency as high financial impact (fuel is a major cost), high regulatory risk (carbon pricing is coming), and high reputational relevance (customers increasingly prefer lower-emission transport). Employee safety scores high on regulatory, reputational, and operational risk. Data privacy matters for reputational and regulatory reasons. Office energy consumption, while measurable, ranks lower because it represents small financial exposure and limited stakeholder concern.
Step 5: Create Your Materiality Matrix
The materiality matrix visualizes your assessment results, plotting topics on two axes. The vertical axis shows importance to stakeholders (based on your external engagement). The horizontal axis shows impact on business (based on your internal assessment).
Topics appearing in the top right quadrant (high stakeholder importance and high business impact) are your material issues. These become the focus of your ESG reporting.
Topics in other quadrants receive different treatment. Issues with high stakeholder importance but low business impact might still warrant brief discussion to address stakeholder information needs. Issues with high business impact but low stakeholder importance might be managed internally without extensive external reporting. Issues low on both dimensions can be excluded from your report.
For a typical company, expect five to 12 material topics to emerge in that top right quadrant. If you have more than 15, you haven’t filtered sufficiently and risk unfocused reporting. If you have fewer than five, you may have filtered too aggressively.
Step 6: Validate and Prioritize
Before finalizing your materiality assessment, validate findings with key stakeholders.
Present preliminary results to your ESG steering committee and executive team. Do these results align with their understanding of business risks and opportunities? Are there any surprising omissions or inclusions?
Consider sharing your draft materiality assessment with select external stakeholders, particularly investors or major customers. Their feedback helps ensure your identified material topics genuinely reflect stakeholder decision-making needs.
Some companies find it useful to add a third dimension beyond the two-axis matrix: urgency or time horizon. Climate change might be highly material but play out over decades, while a looming regulatory change might be equally material but require immediate action. This helps prioritize management response.
Common mistakes to avoid.
Materiality washing: Some companies conduct superficial assessments that simply validate pre-existing reporting topics rather than genuinely testing what matters. This undermines the entire process. Be prepared for surprising results that challenge your assumptions.
Insufficient stakeholder diversity: Engaging only friendly stakeholders or limiting engagement to investors produces biased results. Include critical voices and diverse perspectives.
Treating materiality as static: Material issues change as business context, regulations, and stakeholder expectations evolve. Plan to refresh your materiality assessment every two to three years, or sooner if significant business changes occur.
Confusing materiality with capacity: An issue doesn’t become immaterial simply because you lack data or management systems to address it. If an issue is genuinely material, acknowledge it in reporting and explain your plans to improve measurement and management.
Using your materiality assessment.
Your completed materiality assessment drives multiple applications beyond ESG reporting structure.
Report structure: Organize your ESG report around material topics, giving each significant coverage with data, targets, and management approaches.
Strategy development: Focus sustainability investments and initiatives on material issues rather than spreading resources across all ESG topics.
Risk management: Integrate material ESG issues into enterprise risk management frameworks.
Stakeholder communication: Use materiality results to guide investor presentations, customer communications, and employee engagement on sustainability topics.
Target setting: Establish performance targets for material issues rather than setting arbitrary goals across all ESG dimensions.
Getting Started
Materiality assessment requires time and thoughtful stakeholder engagement, but the investment pays dividends through focused, credible ESG reporting that addresses topics genuinely affecting your business and stakeholders.
Start by assembling your initial topic list using sector research and reporting frameworks. Conduct internal stakeholder interviews to understand business perspectives. Design and execute external stakeholder engagement appropriate to your key audiences. Assess business impacts systematically across financial, operational, regulatory, and reputational dimensions. Create your materiality matrix and validate findings with key stakeholders.
The resulting materiality assessment becomes the foundation for ESG reporting that demonstrates strategic understanding of sustainability’s role in business value creation.
Need guidance on conducting your materiality assessment? Reach out to us on info@susco.co.za