How to Verify Supply Chain Due Diligence with Evidence
Learn practical steps and expert insights to verify supply chain due diligence. Improve compliance, human rights practices, and risk mitigation.
In an era where transparency, sustainability, and ethical practices dominate the global business agenda, ensuring due diligence in supply chains isn't just a regulatory necessity - it's a competitive advantage. The webinar "How to Verify Supply Chain Due Diligence with Evidence" brought together leading experts to explore how businesses can move beyond intention and policies to implement, verify, and continuously improve due diligence practices. This article distills the key insights from that discussion, offering actionable strategies for business professionals, procurement managers, and technical decision-makers aiming to strengthen their supply chain management with AI-driven ESG tools.
Why Supply Chain Due Diligence Matters
Supply chain due diligence is no longer just a compliance activity. It is the foundation for managing risks, improving operational efficiency, and safeguarding a company’s reputation. With increasing scrutiny from regulators, stakeholders, and consumers, businesses need to demonstrate that they take their duties seriously - both legally and ethically.
As Colleen Toron, a tri-qualified lawyer and founder of AIA International, emphasized, "It’s one thing to have a policy on paper, but it’s another thing entirely to demonstrate that it's working." The focus has shifted from planning to implementation, monitoring, and acting on insights gained through evidence-based approaches.
Key Elements of Supply Chain Due Diligence
To effectively verify due diligence and improve decision-making across supply chains, businesses must focus on key principles:
1. From Policy to Practice: Closing the Loop
Many organizations have developed policies and risk assessments, but the real challenge lies in moving from intent to action. Companies must ensure their strategies are actionable and result in measurable improvements. This involves embedding due diligence across procurement and decision-making processes.
Colleen explained, "What we are seeing is that while many businesses have tools like audits or data frameworks, they often lack the integration and strategic oversight to make these tools effective."
Action Tip: Businesses should create interconnected systems that link risk identification, actions, and outcomes to drive meaningful improvements.
2. The Importance of Evidence-Based Decision-Making
Data is central to effective due diligence. Rather than relying on assumptions or incomplete information, companies must use data to identify risks, allocate resources, and measure the effectiveness of their actions.
According to Colleen, "Taking your data and turning it into actionable, defensible steps is critical - not just to improve outcomes, but also to protect against legal and reputational risks."
Action Tip: Use trends from audits, grievance mechanisms, and supplier engagement to inform targeted actions. Focus resources on the highest-risk areas identified through data.
3. Enhancing Communication with Stakeholders
Clear communication is essential for building trust and credibility with stakeholders. Whether engaging investors, regulators, or suppliers, companies must provide transparency about their efforts, challenges, and progress.
Rory Oak, a senior consultant with AIA International, emphasized, "Good communication is about showing your work, not just presenting actions that sound good. Transparency about risks, actions, and remaining challenges builds credibility."
Action Tip: Tailor communications to your audience. For example, investors may prioritize governance and risk management, while suppliers or workers may focus on practical improvements in working conditions.
Going Beyond Audits: Strengthening Worker Engagement
Auditing alone is insufficient to uncover hidden risks, especially in complex global supply chains. Rory highlighted the importance of engaging with workers directly, through methods such as anonymous surveys, interviews, and improved grievance mechanisms.
"One of the most effective ways to go beyond audits is to strengthen worker engagement. Listening to the people affected provides invaluable insights into conditions that audits might miss", Rory noted.
Action Tip: Invest in tools and processes to amplify worker voices. Focus on identifying and addressing systemic issues like recruitment practices, excessive overtime, or wage violations.
The Role of Assurance in Building Confidence
Assurance processes, such as validation, verification, and third-party audits, play a vital role in stress-testing due diligence systems. These processes build confidence by ensuring that data is reliable, accurately reported, and aligned with best practices.
Mayesh Deshpar, principal consultant for sustainability, explained, "Assurance is not about fault-finding; it’s about helping companies strengthen their systems, improve transparency, and continuously improve their disclosures."
Key benefits of assurance include:
De-risking disclosures: Ensure data accuracy and reliability to avoid reputational or legal fallout.
Continuous improvement: Identify gaps and opportunities to enhance systems over time.
Traceability: Build confidence in your processes by maintaining robust documentation and evidence trails.
Action Tip: Conduct readiness assessments and gap analyses to identify areas for improvement before pursuing third-party assurance.
The Business Case for Effective Due Diligence
Beyond regulatory compliance, effective due diligence delivers tangible business benefits. Colleen highlighted several key advantages, including:
Operational Efficiency: Streamlined systems and processes reduce inefficiencies and duplication of effort.
Reputation Management: Demonstrating ethical practices builds trust with stakeholders and protects against reputational damage.
Investor Confidence: Improved benchmarking and reporting standards attract investment and enhance competitiveness.
Supplier Relationships: Stronger collaboration with suppliers fosters long-term partnerships and shared values.
Employee Engagement: Ethical practices improve morale and attract top talent.
She also referenced a recent UNDP report showing that long-term operational gains from robust due diligence often outweigh the initial investment.
Next Steps for Companies at Different Maturity Levels
For Beginners:
Start Small: Focus on identifying your highest-risk areas and developing a step-by-step plan.
Engage Key Stakeholders: Build buy-in from leadership and assign responsibility for due diligence.
Implement Simple Actions: Begin with initiatives like supplier codes of conduct or targeted supplier engagement.
For Intermediate Organizations:
Reassess Objectives: Review your strategy to ensure alignment with evolving regulations and stakeholder expectations.
Conduct Gap Analysis: Identify areas for improvement through readiness assessments or maturity models.
Strengthen Assurance: Validate your systems with third-party verification or assurance services.
For Advanced Organizations:
Stress-Test Your Systems: Identify gaps and blind spots by critically evaluating existing processes.
Enhance Governance: Focus on board-level accountability and upskilling senior leaders.
Measure Impact: Shift from activity-based metrics to outcomes and impact-focused reporting.
Key Takeaways
Focus on Implementation: Move beyond policies and ensure due diligence systems are embedded in daily practices.
Prioritize Risks: Use data to identify and address the most pressing risks in your supply chain.
Engage Workers: Strengthen worker voice mechanisms to uncover hidden risks not captured by audits.
Communicate Transparently: Tailor messages to stakeholder needs and demonstrate progress, challenges, and impacts.
Leverage Assurance: Use third-party verification to build confidence, enhance transparency, and continuously improve systems.
Build the Business Case: Effective due diligence improves operational efficiency, investor confidence, and stakeholder trust.
Adapt to Your Maturity Level: Whether starting out or looking to optimize, tailor your approach to align with your organization’s current capabilities and goals.
Conclusion
Supply chain due diligence is a critical element of modern business strategy, driving ethical practices, regulatory compliance, and operational improvements. By moving beyond audits, leveraging evidence, and focusing on continuous improvement, businesses can manage risks while building resilience and long-term value.
Whether you’re just beginning your journey or refining an already sophisticated program, actionable steps like those outlined above can help your organization thrive in an increasingly complex global landscape.
Source: "Responsible Supply Chains in ACTion: Act with Evidence - Verifying & Communicating Due Diligence" - Bureau Veritas, YouTube, Apr 30, 2026 - https://www.youtube.com/watch?v=KzmTjbhLAkM