When the disclosure is four hops from the gate.

The disclosure architecture for a listed industrial group or a private-equity fund holding construction-adjacent operating companies is structurally four hops removed from the worksite where the evidence originates. The operating company captures per-worker documentation at the deployment gate; the operating company aggregates it for the deployment-cycle report; the parent or fund consolidates portfolio operating-company data for group-level disclosure; the institutional investor receives the fund-level or group-level disclosure as input to its own ESRS S2 reporting. Each hop is audit-traceable. Each hop fails forensically if the evidence was not captured at source.

The operational consequence is concentrated at year-end. Per-worker evidence missed at deployment becomes a forensic recovery problem at audit — at which point the cost is the operating company CFO's time, the parent sustainability function's time, the external auditor's verification charge, and the LP diligence team's flag-noted review. The reporting burden does not move down. Discovery typically lands six to nine months after the deployment cycle closed, by which point the workers have rotated, the subcontracted scope has changed counterparties, and the grievance-channel records — if they were ever opened — cannot be reconstructed.

The regulatory surface operative through 2026 is concrete and named. CSRD Wave 1 reporting covers FY2025 reports for entities above 1,000 employees and EUR 450M turnover; Wave 2 (FY2026) is effectively narrowed by Directive (EU) 2026/470, the Omnibus simplification in force 18 March 2026, which raises the CSRD threshold to >1,000 employees and >EUR 450M turnover and the CSDDD threshold to >5,000 employees and >EUR 1.5B turnover. ESRS S2 disclosures S2-1 (policies), S2-2 (engagement and grievance, merged under amended ESRS), S2-3 (channels), S2-4 (taking action) and S2-5 (substantiated human-rights incidents involving value-chain workers, strengthened under post-Omnibus EFRAG simplification) remain operative across in-scope entities. EFRAG has cut roughly 61% of ESRS data-points; Commission adoption of the simplified ESRS is expected summer 2026. A two-year optional phase-in applies to value-chain worker datapoints under ESRS S2. France's Loi 2017-399 thresholds (5,000 FR / 10,000 worldwide) coexist with the new CSDDD floors — French entities in scope of Loi 2017-399 remain in scope of the Plan de Vigilance regardless of whether they fall under CSDDD. CSDDD national transposition is due by 26 July 2028 with application from 26 July 2029. Modern Slavery Act 2015 §54 continues to bind UK listed parents.

The post-Omnibus shift is not a reduction in substance. The entity perimeter narrows; the disclosure depth per in-scope entity intensifies. CSDDD direct-supplier (Tier-1) scope post-Omnibus is more granular than the original CSDDD draft, which means the per-worker evidence requirement at Tier-1 — the operating company's direct subcontracted workforce — is heavier than the pre-Omnibus expectation. ESRS S2-5 has been strengthened, not weakened, by the EFRAG simplification. The failure mode is documentary, not contractual: an operating company's year-end report cannot be retrofitted with per-worker grievance records, remediation logs and continuous welfare monitoring that were never opened at the gate. The instrument is the pre-deployment evidence architecture and the four-hop flow-through to LP-level reporting — pre-architected, not assembled at the close of the cycle.