7 Lessons in Supply Chain Due Diligence and Resilience

In our conversation with Raoul Mancke, Global Business Sector Leader – Sustainability at Kiwa, he makes one thing clear: supply chain responsibility is no longer optional. With increasing regulatory pressure and growing risks, companies must proactively approach transparency, traceability, and resilience.

A key driver behind this shift is the Corporate Sustainability Due Diligence Directive (CSDDD), the EU’s effort to hold companies accountable for human rights and environmental impacts across their global supply chains. Supply chain due diligence is shifting from a legal formality to a strategic necessity for internationally active businesses.

Below, Raoul shares 7 essential lessons to help organizations navigate regulatory complexity, demonstrate credibility, and build more resilient supply chains.

“Sustainability due diligence isn’t just about compliance,” it’s a business resilience strategy.

Raoul Mancke
Global Business Sector Leader – Sustainability at Kiwa

What is supply chain due diligence?

Supply chain due diligence refers to the process through which companies identify and address actual and potential risks in their operations and supply chains, especially risks related to human rights violations, environmental harm, and corruption. Under the EU CSDDD, due diligence involves continuous risk assessments, prevention plans, monitoring mechanisms, and stakeholder engagement across the entire value chain.

    Understand the regulatory landscape

    “Companies need to understand regulations to stay ahead. For example, the CSDDD is being rolled out as part of a broader EU strategy to harmonize national laws,” Raoul explains. “While national acts already exist in different EU countries, each with its specifics, the EU directive helps align approaches across member states.”
    “However, the CSDDD is also facing pushback, particularly through the EU omnibus package, a legislative effort to streamline and align sustainability-related regulations like the CSDDD, CSRD, and EU Taxonomy,” Raoul furthers. “Companies need to stay alert to these evolving obligations and potential overlaps. That’s why, at Kiwa, we closely monitor such developments to help our clients navigate any changes and stay compliant.”

    Certifications can make your supply chain visible and credible

    Raoul highlights that Kiwa has always been ahead of the curve in serving clients: “For example, before the German supply chain act came into force, there was a voluntary period when companies were expected to report. That’s when we developed a certification scheme to give them a way to prove their sustainable supply chain management.”
    Additionally, Raoul explains the benefits of Kiwa’s SEE standard to help businesses across sectors (whether in organic food, solar, metals, or batteries) build trust with clients, investors, and regulators. “The SEE framework is flexible and sector-adaptable, allowing companies to show credible, third-party-verified progress on environmental, social, and governance (ESG) and due diligence topics without reinventing the wheel. For companies under pressure to prove what’s happening beyond tier one suppliers, certification offers both visibility and reassurance.”
    Learn more about Kiwa’s SEE standard

    Avoid audit duplication with shared data and smart tech

    “Another way we’re enhancing our efficiency and effectiveness while avoiding duplicated efforts for our clients is through the new Kiwa supplier software platform. This platform enables our customers, their suppliers, and our auditors to collaborate within a digital system, facilitating the sharing of ESG audit reports and data with the appropriate stakeholders. For instance, if one company requests an ESG audit of a supplier in China, and then another company asks for the same audit just two weeks later, we encounter the same results but at double the cost for both the buyer and the supplier,” Raoul explains.
    “Now, the supplier can select a specific customer and share the relevant data. ‘Here’s my report: please review it to see if it meets your needs.’ This not only saves time but also reduces costs for everyone involved. Our goal is to achieve climate neutrality without generating new social and environmental harms, and to prevent unnecessary bureaucracy in the industry. Sustainability due diligence policies will only be impactful when combined with intelligent systems that also make them affordable for stakeholders.”

    Build your global network — and go local

    “At Kiwa, we’ve trained local experts to conduct audits; they know the local laws, culture, and language,” Raoul says. “That’s a big advantage. We even have teams on the ground all over the world, and currently, the demand is especially high in Latin America, South Asia, and China. Some clients request hybrid audits that combine local and European auditors for balanced, cross-border insights. By partnering globally and understanding local contexts, we deliver stronger, more tailored results.”

    Don’t copy-paste practices across industries

    Raoul cautions that what works in one sector may not translate directly to another. “In the organic food sector, the sustainable supply chain management works differently than in the solar sector. The organic food sector works directly with farmers who face different challenges than, for example, the mining sector of the solar industry. Building a sustainable supply chain due diligence system, in general, can span multiple sectors, but it is essential to consider the specific requirements of each sector. For example, in the construction sector, verification of Environmental Product Declarations is feasible, but it is inefficient. Take limited sampling, the practice of inspecting or testing only a small subset of a larger group, such as materials, products, or suppliers, instead of conducting a comprehensive review of the entire batch or supply chain. You can’t just apply that to an industry like solar energy. It’s a completely different scale. That’s where we support capital-intensive sectors and build on proven ideas from other industries while specifically tailoring them to suit distinct market dynamics, regulatory expectations, and operational scale,” explains Raoul.

    Use AI wisely, but don’t rely on it completely

    “We already use AI to monitor public ESG data and news about suppliers; it helps us flag issues early,” Raoul says. “We use large language models to scan reports or the internet to see if a company has been linked to forced labor or child labor. But AI isn’t foolproof, so we always follow up with expert analysis. Our people remain central to the process.”

    Start with transparency and build from there

    Raoul outlines a phased approach to due diligence: “Companies should start with transparency. Then build traceability. Then assess the risks. Smaller companies may not achieve full transparency immediately. They can begin with regional or material-based assessments. If you still face a high risk and lack information, the regulations encourage working on improvement.”
    He adds that due diligence should be a cross-functional effort. “Procurement talks to suppliers, but they may not know the sustainability side of things. So it’s necessary to make it an integrated management system.”

Resilience lies in future-proofing

“Due diligence isn’t just about compliance,” Raoul concludes. “It’s a business resilience strategy. You need alternatives, and you must continually work towards greater sustainability. Embedding due diligence helps companies make smarter decisions, avoid disruptions, and gain a competitive edge. You get better insight into your supply chain, making it more resilient in the long run.”

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