ISSB Agrees to Build Nature Disclosures on TNFD Framework

At its May 2026 meeting, the International Sustainability Standards Board agreed to base its nature-related disclosure research on the existing TNFD framework. The move extends global reporting standards beyond climate metrics, foreshadowing nature-related requirements that Indian listed companies and BRSR preparers may eventually need to address.

During its May 2026 meeting, the ISSB reached consensus on the strategic direction for its nature-related disclosures research project, agreeing to build on the Taskforce on Nature-related Financial Disclosures framework. The decision expands the board's suite of global reporting standards beyond climate-specific metrics to address corporate impacts and dependencies on biodiversity and ecosystems. The ISSB intends a phased implementation designed to keep nature disclosures decision-useful for global investors and aligned with frameworks the market already understands.

The decision affects global preparers, investors, and standard-setters tracking the convergence of sustainability reporting. By adopting TNFD's four-pillar structure — governance, strategy, risk management, and metrics and targets — the ISSB aligns nature disclosures with the architecture market participants already use for climate. For Indian companies and BRSR reporters, this signals that biodiversity and ecosystem dependencies could enter mainstream disclosure expectations, extending reporting obligations beyond carbon and climate risk over time.

Sustainability officers and reporting teams should monitor the ISSB's phased rollout and how closely final requirements track the TNFD four-pillar model. Indian listed entities already preparing BRSR disclosures should assess current visibility into nature and biodiversity dependencies, since alignment with existing frameworks like TNFD is intended to reduce fragmentation and ease future adoption. Tracking ISSB research milestones will help preparers anticipate when nature-related metrics move from voluntary to expected.

Key figure — Framework basis: TNFD four-pillar structure (governance, strategy, risk management, metrics and targets)