ISSB Compliance Software | IFRS S1 & S2 Sustainability Disclosure Automation | Certivo - Certivo

ISSB Compliance

Sustainability & Carbon Compliance

ISSB IFRS S1 & S2 — International Sustainability Standards Board, IFRS Sustainability Disclosure Standards

21 Jurisdictions Have Adopted ISSB Standards. Can You Produce Investor-Grade Sustainability Disclosures Across Your Supply Chain?

ISSB compliance requires company-wide sustainability and climate disclosure—including Scope 1, 2, and 3 greenhouse gas emissions—across your entire value chain. IFRS S2 mandates climate scenario analysis, transition risk quantification, and industry-specific metrics drawn from SASB. Mandatory reporting is now live in multiple markets, with more jurisdictions enforcing requirements through 2027.

Certivo automates ESG supply chain data collection from supplier evidence through audit-ready ISSB reporting.

21+

Jurisdictions with ISSB adoption as of January 2026

Scope 1-3

GHG emissions disclosure required under IFRS S2

4 Pillars

Governance, Strategy, Risk Management, Metrics & Targets

Regulation Overview

Jurisdiction

Global (adopted jurisdiction-by-jurisdiction; 21+ markets as of January 2026)

Regulatory Body

International Sustainability Standards Board (ISSB), part of the IFRS Foundation

Regulation Number

IFRS S1 (General Sustainability) and IFRS S2 (Climate-related Disclosures)

Effective Date

Annual reporting periods beginning on or after January 1, 2024 (jurisdictional adoption varies)

Official Source

IFRS Sustainability Standards Navigator

Key Threshold

Four-pillar structure: Governance, Strategy, Risk Management, Metrics & Targets

What Is ISSB Compliance?

The ISSB standards represent the global baseline for investor-focused sustainability disclosure. For supply chain and compliance teams, the primary obligation is producing structured, comparable data on sustainability-related risks and opportunities—with climate disclosure under IFRS S2 carrying the most prescriptive requirements, including mandatory Scope 1, 2, and 3 GHG emissions reporting.

As of January 2026, 21 jurisdictions have adopted ISSB standards on a voluntary or mandatory basis, with mandatory reporting now live in Brazil, Chile, Mexico, Qatar, Australia, Malaysia, and Hong Kong, among others. The ISSB has also confirmed it will publish a nature-related disclosures exposure draft by October 2026, expanding the scope of sustainability reporting beyond climate. IOSCO's endorsement signals adoption across the 130 jurisdictions it represents.

ISSB compliance requires value-chain-level data—Scope 3 emissions from suppliers, climate risk exposure by asset, and industry-specific metrics per SASB Appendix B. When jurisdictions mandate reporting, your entire supplier base requires sustainability data collection and validation.

Key Components / Sub-Frameworks

Obligation

Disclose material sustainability risks and opportunities across four pillars .

IFRS S1 (General Requirements)

Framework for all sustainability-related financial disclosures.

Obligation

Scope 1-3 GHG emissions, climate scenario analysis, transition plan disclosure.

IFRS S2 (Climate Disclosures)

Climate-specific disclosure requirements built on TCFD.

Obligation

Disclose metrics across 11 sectors and 70+ industries.

SASB Appendix B

Industry-specific metrics integrated into IFRS S2.

Obligation

Mandatory with first-year transitional relief; estimates permitted.

Scope 3 Reporting

Value chain emissions from upstream suppliers and downstream activities.

Obligation

Required under IFRS S2 Strategy pillar.

Climate Scenario Analysis

Forward-looking assessment of physical and transition risks.

Obligation

Exposure draft expected October 2026; material nature risks already required under S1.

Nature-Related Disclosures

Forthcoming IFRS Practice Statement drawing on TNFD framework.

ISSB Adoption Accelerated in 2026—Brazil, Mexico, and Qatar Now Mandate Reporting. Nature-Related Disclosures Are Next. Is Your Supply Chain Data Ready?

Mandatory ISSB-aligned reporting is now effective in multiple jurisdictions, with the UK consulting on rules effective from January 2027. The ISSB confirmed in April 2026 it will develop a Practice Statement on nature-related disclosures, with an exposure draft targeted for October 2026. Scope 3 emissions require supplier-level data that most companies do not yet systematically collect.

Key Compliance Requirements

Who Must Comply

Key Thresholds

Scope 1, 2, and 3

All three scopes of GHG emissions must be disclosed under IFRS S2.

Financial materiality

Sustainability risks and opportunities that could reasonably affect entity prospects.

First-year relief

Scope 3 disclosure may be deferred to Year 2; climate-first approach permitted.

SASB industry metrics

Industry-specific disclosure metrics required via Appendix B across 70+ industries.

Core Obligations

  1. IFRS S1 Sustainability Disclosure
    Obligation: Disclose governance, strategy, risk management, metrics and targets for all material sustainability risks
    Deadline: Concurrent with annual financial statements.

  2. IFRS S2 Climate Disclosure
    Obligation: Disclose Scope 1-3 GHG emissions, climate scenario analysis, transition risks, and SASB industry metrics.
    Deadline: Concurrent with annual financial statements.

  3. Scope 3 GHG Reporting
    Obligation: Report value chain emissions using GHG Protocol methodology, including supplier data.
    Deadline: Mandatory from Year 2 of reporting (Year 1 transitional relief available).

  4. Climate Scenario Analysis
    Obligation: Assess resilience of business strategy under multiple climate scenarios.
    Deadline: Required under IFRS S2 Strategy pillar.

  5. Concurrent Reporting
    Obligation: Sustainability disclosures published at the same time as related financial statements.
    Deadline: Same reporting period as financial statements.

ISSB-Specific Pain Points

The Scope 3 Data Gap

IFRS S2 requires disclosure of value chain emissions across all material Scope 3 categories. For most manufacturers, Category 1—purchased goods and services—dominates the footprint. But supplier-level emissions data is fragmented across spreadsheets, PDFs, and email attachments. CDP reports cover a fraction of your supply base. The rest requires direct engagement with hundreds of suppliers who have never measured their carbon output.

The Multi-Jurisdiction Reporting Scramble

Your Australian subsidiary reports under AASB S2 for FY2025. Brazilian operations face mandatory CBPS reporting from January 2026. Hong Kong listed entities shifted to mandatory IFRS S2 in 2026. Each jurisdiction layers its own phasing, scope, and assurance requirements onto the same ISSB baseline. Without a centralized compliance data backbone, your teams produce three parallel workstreams to satisfy one set of standards.

The Industry Metrics Trap

IFRS S2 Appendix B pulls industry-specific metrics from SASB across 70+ industries. An electronics manufacturer must disclose product lifecycle environmental impacts. An energy company must report reserves sensitivity to carbon pricing. A chemical manufacturer must disclose hazardous waste metrics. These SASB-derived requirements sit buried in appendices—and mapping them against your operations requires specialized substance reporting solutions that most ERP systems do not provide.

The Assurance Readiness Burden

Jurisdictions adopting ISSB standards are layering assurance requirements on sustainability disclosures. Limited assurance in Year 1, reasonable assurance by Year 3. Your data must withstand auditor scrutiny—not just at the consolidated level, but across suppliers, facilities, and business units. Manual ESG data collection through email campaigns and spreadsheet aggregation cannot produce the audit trail that assurance providers demand.

Certivo in Action

Certivo Workflow

GET EVIDENCE IN
Collect Sustainability Data from Every Supplier—Without the Chasing
CORA launches targeted ESG supply chain data collection campaigns to gather emissions factors, energy consumption, and climate risk indicators from your supplier base, following up automatically and accepting responses in any format.

MAKE SENSE OF IT
Know Instantly Where Your Climate Exposure Sits Across the Value Chain
CORA extracts emissions data, energy metrics, and climate indicators from every supplier submission, validates against GHG Protocol methodology, and maps results to ISSB disclosure categories automatically.

⚠️

PROVE COMPLIANCE OUT
Generate Investor-Grade ISSB Disclosures in Hours, Not Quarters
Produce four-pillar disclosure packages with complete data lineage from supplier evidence to published report—ready for assurance review.

One Supplier Submission. Validation Across All Scopes and Frameworks. Audit-Ready in Hours.

Certivo reads supplier documents, extracts emissions and sustainability data with AI-native compliance automation, validates against GHG Protocol and ISSB requirements, and generates disclosure-ready evidence automatically. When jurisdictions adopt new ISSB requirements, Certivo reassesses your portfolio and alerts you—through regulatory intelligence and horizon scanning—before reporting deadlines arrive.

Scope 1-3 Extraction

GHG Protocol Validation

IFRS S1 & S2 Generator

SASB Mapping

Multi-Jurisdiction Tracking

Features

Supplier Data Collection

Certivo's automated supplier data collection and portals achieve 95% response rates vs. 20–30% with manual outreach.

Emissions Extraction

Every submission parsed to activity-data level automatically—no manual data entry.

Multi-Framework Monitoring

Always validated against current ISSB adoption status—not your last reporting cycle.

Disclosure Generation

Generate IFRS S1 and S2 disclosures in hours instead of 3–4 months of manual compilation.

Assurance Support

Pre-validated data with full provenance turns assurance from burden to streamlined workflow.

Related Regulations

Managing ISSB compliance alongside related frameworks eliminates duplicate supplier requests. Certivo validates one submission against multiple sustainability and substance disclosure requirements.

Industries Most Impacted

Return on Investment

80%
Reduction in Disclosure Labor

From Manual Aggregation to Automated Reporting
CORA extracts sustainability data automatically through AI-native compliance automation. Your team focuses on strategy and narrative—not chasing supplier spreadsheets and reconciling emissions figures.

3 Weeks
To Audit-Ready Disclosure

ISSB Reporting Acceleration
Generate complete, assurance-ready IFRS S1 and S2 packages in weeks—not the 3–5 months of manual compilation across business units and regions.

Real-Time
Jurisdiction Tracking

Proactive ISSB Compliance Monitoring
When new jurisdictions adopt ISSB standards, Certivo reassesses your reporting obligations instantly through regulatory intelligence and horizon scanning. Know which entities are affected before deadlines arrive.

Key Statistics

Frequently Asked Questions

What companies are subject to ISSB reporting obligations?
Any company in a jurisdiction that has adopted IFRS S1 and S2 into national law or regulation must comply. As of 2026, this includes listed and publicly accountable entities in Brazil, Chile, Mexico, Australia, Malaysia, Hong Kong, and a growing number of other markets. Even companies in non-mandating jurisdictions face indirect pressure when customers, investors, or capital market counterparts require ISSB-aligned disclosures. Certivo's centralized compliance data backbone helps organizations track which entities fall within scope across multiple jurisdictions simultaneously.

How does ISSB compliance affect manufacturers that are not publicly listed?
Non-listed manufacturers are increasingly drawn into ISSB compliance through their customers' Scope 3 reporting obligations. When a listed company must disclose value chain emissions, it requests activity data from every supplier in its chain. CORA automates both sides of this exchange—collecting data from your suppliers and generating response packages for your customers—through automated supplier data collection and portals that handle the volume without adding headcount.

What is the relationship between ISSB, TCFD, and CSRD?
ISSB fully incorporates and supersedes TCFD—the TCFD disbanded in 2023 after IFRS S1 and S2 were issued. Companies already reporting under TCFD meet the core ISSB four-pillar structure. CSRD operates under EU double materiality, while ISSB uses financial materiality. Both share significant overlap on climate disclosure. Certivo validates one supplier submission against ISSB, CSRD, and related frameworks through multi-framework compliance monitoring, eliminating duplicate data collection.

How does Certivo handle Scope 3 emissions data collection from suppliers?
Certivo launches targeted campaigns through centralized supplier self-service portals, requesting emissions factors, energy consumption, and activity data from suppliers in their preferred format and language. CORA parses every response—CDP disclosures, PDF reports, Excel files, freeform declarations—extracting metrics to the precision required for GHG Protocol-aligned Scope 3 calculations. Anomaly detection flags inconsistent data before it reaches your consolidated disclosure, ensuring audit-ready quality at the point of collection.

What happens when new jurisdictions adopt ISSB standards?
Certivo monitors jurisdictional adoption status through regulatory intelligence and horizon scanning. When a new market mandates ISSB reporting—or updates phasing, assurance, or scope requirements—Certivo reassesses your entity portfolio, identifies newly in-scope operations, and triggers the appropriate data collection and disclosure workflows automatically, giving compliance teams lead time to prepare rather than scramble at deadline.