ESRS S2 Value Chain Workers Overview
ESRS S2 covers working conditions and human rights for workers in your value chain — upstream suppliers, subcontractors, and downstream distribution workers. It is the supply chain human rights standard in CSRD and directly anticipates CSDDD mandatory due diligence obligations from 2027.
ESRS S2 covers working conditions and human rights for workers in your value chain — upstream suppliers, subcontractors, and downstream distribution workers. S2-1 Policies related to value chain workers: Supply chain code of conduct; human rights policy covering value chain; supplier sustainability requirements.
The five ESRS S2 disclosure requirements
S2-1 Policies related to value chain workers: Supply chain code of conduct; human rights policy covering value chain; supplier sustainability requirements.
S2-2 Processes for engaging with value chain workers: How the company engages with workers in its supply chain — direct engagement mechanisms, worker voice programmes, grievance channels accessible to supply chain workers.
S2-3 Processes to remediate negative impacts: How violations identified through supply chain audits or grievance mechanisms are addressed — corrective action plan requirements, remediation support, escalation to contract termination.
S2-4 Taking action on material impacts and managing risks: Supplier audit programmes; human rights due diligence processes; capacity building for supplier compliance.
S2-5 Targets: Supply chain human rights targets — percentage of suppliers audited, corrective action closure rates, living wage coverage in supply chain.
ESRS S2 and CSDDD — the dual compliance opportunity
The Corporate Sustainability Due Diligence Directive (CSDDD) requires large EU companies to conduct active human rights and environmental due diligence across their value chains from 2027. ESRS S2 disclosure and CSDDD due diligence cover substantially the same ground — building one programme satisfies both.
CSDDD requires: mapping and prioritising value chain human rights risks; conducting appropriate due diligence measures (audits, engagement, contractual requirements); establishing or participating in grievance mechanisms; monitoring effectiveness; and communicating on due diligence.
ESRS S2 requires disclosure of exactly these activities — policies (S2-1), engagement (S2-2), remediation (S2-3), actions (S2-4), and targets (S2-5). Companies building ESRS S2 disclosure infrastructure now are simultaneously building their CSDDD compliance programme.
The key difference: CSDDD requires active prevention and remedy of adverse impacts — it goes beyond disclosure to mandate actual due diligence action. ESRS S2 requires disclosure of whatever due diligence you are doing. Together they create a virtuous cycle: CSDDD drives action, ESRS S2 requires you to report on it.
Prioritising your supply chain for ESRS S2
ESRS S2 applies the proportionality principle — focus engagement on material relationships where risks are highest. Not all suppliers present equal human rights risk.
High-risk identification matrix: Country risk (ILO child labour statistics, Transparency International CPI, US UFLPA country designations) × Sector risk (garments, electronics assembly, agriculture, mining, construction) × Spend level (focus resources on high-spend, high-risk relationships).
From this matrix: identify your top 20–30 highest-risk supplier relationships for priority audit and engagement. Use the remaining supply base for lighter-touch questionnaire screening.
For ESRS S2-5 targets: a credible starting point is 100% of high-risk tier 1 suppliers audited within 2 years, 80% of medium-risk tier 1 suppliers screened within 3 years. These are achievable targets that demonstrate a functioning programme without overpromising on tier 2 coverage.
Frequently asked questions
Does ESRS S2 require us to audit all our suppliers?
No — ESRS S2 applies the proportionality principle. Focus audits on high-risk suppliers identified through your risk assessment. Full audit coverage of thousands of suppliers is neither required nor practical. Disclose your risk-based prioritisation methodology and your coverage of high-risk relationships.
What worker grievance mechanisms satisfy ESRS S2-2?
Grievance mechanisms accessible to value chain workers — not just your own employees. Options include: supplier-level grievance hotlines (accessible to workers at supplier sites in local languages); industry-level grievance platforms (Sedex Speak for Supplier, Fair Labor Association); and direct reporting channels for NGOs and worker representatives to escalate cases.
How does ESRS S2 interact with the VSME standard for SME suppliers?
The VSME (Voluntary SME Standard) provides a simplified reporting framework for SME suppliers to communicate ESG data to their large customers. VSME basic-level disclosures include the working conditions data needed for ESRS S2. Encouraging your SME suppliers to adopt VSME reporting improves your S2 data quality over time.