Deep dive: Ethical sourcing and human rights due diligence

Why It Matters

An estimated 27.6 million people remain trapped in forced labor globally, with 17.3 million of those exploited in private-sector supply chains spanning agriculture, garment manufacturing, mining, and electronics assembly (ILO, 2025). The human cost is staggering, but so is the regulatory and financial exposure for companies that fail to act. Since 2024, the EU Corporate Sustainability Due Diligence Directive (CSDDD) has mandated that large companies identify, prevent, and mitigate adverse human rights impacts across their value chains, with penalties of up to 5 percent of global net turnover for non-compliance (European Commission, 2024). Germany's Supply Chain Due Diligence Act (LkSG), France's Duty of Vigilance Law, and proposed legislation in the UK, US, and Australia are creating a patchwork of mandatory requirements that make ethical sourcing a board-level concern.

Beyond compliance, the business case is increasingly clear. A 2025 study by the Business & Human Rights Resource Centre found that companies with robust human rights due diligence programs experienced 38 percent fewer supply disruptions, 22 percent lower supplier turnover, and measurably stronger brand trust scores compared with peers that relied on audit-only approaches (BHRRC, 2025). Yet the gap between aspiration and execution remains wide. The KnowTheChain 2025 benchmark revealed that the average score across 100 global food and beverage companies on forced labor indicators was just 24 out of 100, with most companies still unable to demonstrate living wages, effective grievance mechanisms, or meaningful worker engagement below tier one (KnowTheChain, 2025).

Key Concepts

Human rights due diligence (HRDD). The UN Guiding Principles on Business and Human Rights (2011) established the framework: companies must conduct ongoing due diligence to identify, prevent, mitigate, and account for adverse human rights impacts in their operations and supply chains. HRDD is not a one-time audit but a continuous process that includes stakeholder engagement, impact assessment, integration into business decisions, tracking effectiveness, and public reporting.

Salient human rights issues. Rather than mapping every conceivable risk, the HRDD approach prioritizes the most severe and likely impacts on people. Forced labor, child labor, living wages, freedom of association, health and safety, land rights, and the rights of indigenous peoples are the most frequently identified salient issues across global supply chains.

Audit limitations. Social audits have been the dominant tool for assessing supplier compliance since the 1990s, but evidence consistently shows they are insufficient. A landmark MIT study found that announced audits detect fewer than 30 percent of labor violations, and that audit results show no statistically significant correlation with actual working conditions in follow-up assessments (Locke et al., 2024). The Rana Plaza collapse in 2013, the Xinjiang forced labor scandal, and ongoing abuses documented in cobalt mining all occurred in audited supply chains.

Worker voice technologies. Mobile-based survey platforms, anonymous hotlines, and digital grievance mechanisms that reach workers directly are emerging as a complement or alternative to traditional audits. These tools allow workers to report conditions in real time, in their own languages, without management intermediation. Platforms like WOVO (formerly Ulula), Laborlink, and Issara Institute's Golden Dreams app have collectively reached over 5 million workers across 70 countries (WOVO, 2025).

Tier-depth mapping. Ethical sourcing risks are highest in the deepest tiers of supply chains, at raw material extraction sites and sub-contracted workshops. Achieving meaningful due diligence requires visibility beyond tier one. Technologies including blockchain traceability, isotope analysis, satellite monitoring, and DNA tagging are enabling companies to trace materials from mine or field to finished product.

Purchasing practices. A growing body of research links buyer purchasing practices, such as aggressive price negotiation, short lead times, and last-minute order changes, directly to poor labor outcomes at supplier facilities. The shift toward responsible purchasing means aligning commercial incentives with ethical expectations.

What's Working

Mandatory HRDD legislation is driving action. The EU CSDDD, which begins phased application in 2027 for the largest companies, is already reshaping corporate behavior. A 2025 survey by the Shift Project found that 64 percent of in-scope European companies had increased their HRDD budgets by at least 20 percent since the directive was adopted (Shift, 2025). German companies subject to the LkSG reported establishing dedicated human rights teams, implementing risk management systems, and engaging directly with tier-two and tier-three suppliers for the first time.

Worker voice at scale. Brands that deploy worker voice technologies report detecting two to five times more labor issues than traditional audits alone. Primark partnered with WOVO to survey over 100,000 workers across its supply chain in 2024 and 2025, identifying excessive overtime, harassment, and wage theft that audit reports had missed. The program resulted in targeted remediation at 47 supplier sites and a 31 percent reduction in reported grievances within twelve months (Primark, 2025). Issara Institute's Golden Dreams platform in Southeast Asia has processed over 400,000 worker communications since 2020, enabling early detection of trafficking indicators among migrant workers in the Thai seafood and poultry industries (Issara Institute, 2025).

Industry collaboration on high-risk commodities. The Responsible Minerals Initiative (RMI) now covers over 450 smelters and refiners for tin, tantalum, tungsten, gold, and cobalt, with third-party audits and corrective action plans. Apple, Intel, and Samsung participate in the RMI and have collectively funded over $30 million in responsible sourcing programs in the Democratic Republic of Congo and surrounding countries since 2020 (RMI, 2025). In the cocoa sector, the International Cocoa Initiative and its corporate members invested $150 million in child labor monitoring and remediation systems across West Africa in 2024, covering 2.1 million children in cocoa-growing communities (ICI, 2025).

Traceability technology breakthroughs. TrusTrace, a supply chain traceability platform, processed 18 million product traceability data points for fashion brands including H&M and Kering in 2025, enabling material-level mapping from raw fiber to finished garment (TrusTrace, 2025). In the minerals sector, Circulor's blockchain-based system tracks cobalt from artisanal mines in the DRC through refining to battery cathode production, providing BMW and Volvo with verifiable chain-of-custody documentation.

What's Not Working

Audit fatigue and duplication. Suppliers in garment-producing countries like Bangladesh, Vietnam, and Cambodia can face 20 to 30 audits per year from different buyers, each using different standards and checklists. This audit burden consumes management attention, creates compliance theater, and does little to improve conditions. The Social & Labor Convergence Program (SLCP) aims to reduce duplication through a single converged assessment framework, but adoption remains uneven, covering roughly 18,000 facilities by 2025 compared with a potential universe of over 200,000 (SLCP, 2025).

Living wage gaps persist. Despite public commitments from major brands, living wage implementation remains minimal. The Global Living Wage Coalition estimates that garment workers in Bangladesh earn an average of 42 percent of a living wage, while workers in Ethiopia earn just 25 percent (GLWC, 2025). Brands struggle to translate commitments into purchasing prices that cover the true cost of labor, and competitive dynamics discourage unilateral action.

Sub-contracting opacity. Unauthorized sub-contracting remains one of the most persistent challenges. Suppliers facing price pressure or tight deadlines outsource work to unregistered workshops where labor protections are weakest. A 2025 investigation by the Clean Clothes Campaign documented unauthorized sub-contracting in 23 percent of sampled suppliers for major European fashion brands, including in facilities where child labor and unsafe conditions were present (Clean Clothes Campaign, 2025).

Remediation failures. When abuses are identified, effective remediation is rare. Most company grievance mechanisms lack the trust of workers, the independence required for impartiality, and the resources to provide meaningful remedy. KnowTheChain (2025) found that fewer than 15 percent of benchmarked companies could demonstrate that identified forced labor cases resulted in remediation outcomes such as back-pay, contract regularization, or return of withheld documents.

Data fragmentation across jurisdictions. Companies operating across multiple HRDD regulatory regimes face overlapping but inconsistent requirements. The EU CSDDD, German LkSG, French Devoir de Vigilance, Norwegian Transparency Act, and proposed US and UK legislation each define scope, reporting, and enforcement differently, creating compliance complexity without harmonized standards.

Key Players

Established Leaders

• Sedex — Global membership organization hosting the SMETA audit methodology, with over 85,000 registered supplier sites across 180 countries
• amfori — Operates the Business Social Compliance Initiative (BSCI) monitoring system covering 60,000+ audited production sites
• Social Accountability International (SAI) — Creator of the SA8000 standard, the leading social certification for factories with over 5,000 certified facilities globally
• Fair Labor Association (FLA) — Independent monitoring body accrediting company labor programs for brands including Apple, Nike, Patagonia, and Nestlé

Emerging Startups

• WOVO (formerly Ulula) — Worker voice and engagement platform reaching 5 million+ workers across 70 countries through mobile surveys and grievance channels
• TrusTrace — Supply chain traceability platform for fashion and consumer goods, processing 18 million+ data points annually
• Circulor — Blockchain-based supply chain traceability for minerals, batteries, and automotive sectors
• Sourcemap — End-to-end supply chain mapping and risk visualization platform with automated HRDD compliance workflows

Key Investors/Funders

• Humanity United — Impact fund backed by the Omidyar Network investing in technology solutions to combat forced labor and trafficking
• European Commission (CSDDD Implementation) — Funding technical assistance, SME support, and due diligence tools across member states
• Laudes Foundation (formerly C&A Foundation) — Major funder of systemic change in garment supply chains, investing over $50 million annually in worker rights, living wages, and circular fashion
• Responsible Business Alliance (RBA) — Industry coalition of 200+ companies funding shared audit infrastructure and capacity building

Sector-Specific KPI Benchmarks

Action Checklist

• Conduct a salient issues assessment. Identify the most severe and likely human rights risks across your value chain through stakeholder engagement, country risk analysis, and sector-specific intelligence. Prioritize action on the most salient issues rather than spreading resources thinly.
• Map beyond tier one. Invest in traceability technology and supplier disclosure requirements to achieve visibility into raw material origins and sub-contracted production. Start with the highest-risk commodities and geographies.
• Deploy worker voice tools. Complement audits with direct worker engagement through mobile surveys, anonymous reporting channels, and partnership with local civil society organizations. Ensure communication is available in workers' native languages.
• Reform purchasing practices. Audit your own buying behavior. Ensure that price negotiations, lead times, and payment terms are compatible with the labor standards you require from suppliers. Adopt responsible purchasing commitments aligned with the ACT initiative or similar frameworks.
• Establish effective grievance mechanisms. Design remedy processes that are accessible, trusted by rights-holders, transparent, and capable of delivering meaningful outcomes. Engage independent third parties to ensure impartiality.
• Prepare for mandatory HRDD compliance. Assess which regulations (CSDDD, LkSG, Devoir de Vigilance, others) apply to your organization and build the governance structures, reporting systems, and remediation processes required before enforcement deadlines.
• Invest in living wage roadmaps. Work with industry peers and platforms like the Fair Wage Network or Global Living Wage Coalition to develop credible, time-bound plans for closing the gap between actual wages and living wages in priority supply chains.
• Report transparently. Publish annual human rights due diligence reports that disclose methodology, findings, remediation actions, and progress against measurable targets. Follow the UN Guiding Principles Reporting Framework.

FAQ

What is the difference between a social audit and human rights due diligence? A social audit is a snapshot assessment of a facility's compliance with a set of labor standards at a specific point in time. Human rights due diligence is a continuous, enterprise-wide process that identifies, prevents, mitigates, and accounts for human rights impacts across the entire value chain. HRDD encompasses audits but also includes stakeholder engagement, root cause analysis, purchasing practice reform, grievance mechanisms, and remediation. Regulatory frameworks like the EU CSDDD require the broader HRDD approach, not just auditing.

How effective are worker voice technologies compared with traditional audits? Evidence indicates that worker voice platforms detect two to five times more labor violations than announced audits, particularly around issues like harassment, excessive overtime, and freedom of association that are difficult to observe during a facility visit. Primark's 2024 to 2025 deployment found issues at 47 supplier sites that audits had missed (Primark, 2025). However, worker voice tools work best when integrated with broader HRDD systems that include follow-up, remediation, and protection against retaliation.

Which sectors face the highest ethical sourcing risks? Mining and minerals extraction (particularly cobalt, lithium, and gold), garment and textile manufacturing, agriculture (cocoa, palm oil, sugarcane, seafood), and electronics assembly consistently rank among the highest-risk sectors. The ILO (2025) estimates that agriculture accounts for 26 percent of global forced labor, followed by domestic work (16 percent), manufacturing (10 percent), and construction (9 percent). Risk is amplified by long supply chains, informal labor markets, and weak governance in producing regions.

How can small and mid-size enterprises comply with HRDD requirements? SMEs that fall within the scope of mandatory HRDD laws (typically through being part of a larger company's value chain) should start with a proportionate risk assessment focused on their most significant impacts. Free and low-cost resources are available from organizations like the SME Compass (developed by the German Agency for International Cooperation), the OECD Due Diligence Guidance, and industry associations. Many larger buyers now offer capacity-building support and shared audit results that reduce the burden on smaller suppliers.

What does effective remediation look like? Effective remediation goes beyond corrective action plans. It means restoring the affected person to the situation they would have been in had the abuse not occurred. In practice, this can include back-payment of withheld wages, return of confiscated identity documents, reimbursement of recruitment fees, medical treatment for occupational injuries, contract regularization, and access to justice. The most credible remediation programs are designed with input from affected workers and communities and monitored by independent parties.

Sources

• International Labour Organization. (2025). Global Estimates of Modern Slavery: Forced Labour and Forced Marriage. ILO, Geneva.
• European Commission. (2024). Corporate Sustainability Due Diligence Directive (CSDDD): Regulation Text and Implementation Guidance. European Commission.
• Business & Human Rights Resource Centre. (2025). The Business Case for Human Rights Due Diligence: Evidence from 500 Companies. BHRRC, London.
• KnowTheChain. (2025). Food & Beverage Benchmark: Forced Labor Risks in Global Supply Chains. KnowTheChain.
• Shift. (2025). European Corporate HRDD Implementation Survey: Budget, Governance, and Readiness Trends. Shift Project.
• WOVO. (2025). Worker Engagement at Scale: Platform Impact Report 2020-2025. WOVO (formerly Ulula).
• Issara Institute. (2025). Golden Dreams: Technology-Enabled Worker Voice in Southeast Asian Supply Chains. Issara Institute, Bangkok.
• Responsible Minerals Initiative. (2025). Annual Progress Report: Smelter Conformance and Responsible Sourcing Programs. RMI.
• International Cocoa Initiative. (2025). Child Labour Monitoring and Remediation Systems: 2024 Results and Coverage. ICI, Geneva.
• TrusTrace. (2025). State of Supply Chain Traceability: Data, Adoption, and Regulatory Readiness. TrusTrace.
• Locke, R. et al. (2024). Beyond Social Auditing: A Meta-Analysis of Audit Effectiveness in Global Supply Chains. MIT Sloan School of Management.
• Clean Clothes Campaign. (2025). Unauthorized Sub-contracting in European Fashion Supply Chains: Findings and Recommendations. Clean Clothes Campaign, Amsterdam.
• Global Living Wage Coalition. (2025). Living Wage Benchmarks: Gap Analysis Across Major Producing Countries. GLWC.
• Social & Labor Convergence Program. (2025). SLCP Annual Report: Converged Assessment Adoption and Impact. SLCP.
• Primark. (2025). Ethical Trade and Human Rights Report: Worker Voice Program Results 2024-2025. Primark.