The Impact of Sustainability Reporting on Directors' ESG Duties: The Disclosure-Duty Feedback Loop

Maturation of sustainability reporting has expanded, rather than resolved, the ambiguity surrounding directors’ ESG duties. Reporting standards specify what must be disclosed, but not what directors must do behind the disclosure, while regulatory regimes diverge in scope, materiality and enforcement. The paper explains this paradox through a “disclosure-duty feedback loop”. Because company law regulates process rather than outcomes, mandatory reporting requires boards to establish and oversee systems capable of producing reliable disclosures, drawing them into the governance of the underlying subject matter. Each report then becomes a benchmark against which subsequent board conduct may be assessed, causing the obligation to ratchet upward as disclosure becomes mandatory and assured.

The paper traces this loop across three regimes: an ISSB baseline adopted in Singapore and the United Kingdom; an EU regime narrowed by Omnibus I but retaining a commitment to double materiality; and a US regime withdrawn at the federal level, while California extends reporting obligations extraterritorially. It shows that the loop operates through existing duties, with three channels in the United Kingdom, two in Singapore and effectively one in Delaware. The loop therefore inherits the limits of those duties in standard, foreseeability and enforcement, and is strained where listing and incorporation jurisdictions diverge. It strengthens monitoring without making directors guarantors of ESG outcomes. The paper proposes four reforms: clearer oversight duties, safe harbours for good-faith forward-looking and Scope 3 disclosures, proportionate assurance, and mutual recognition for dual reporters.