ESRS and the EU Sustainability Reporting Package: What Non-EU Insurers Should Still Read

The European Sustainability Reporting Standards (ESRS) are primarily an EU regulatory instrument. The first twelve, covering environmental, social, and governance topics, were finalised in 2023 with mandatory reporting under the Corporate Sustainability Reporting Directive (CSRD) phasing in from 2024. On the face of it, an insurer headquartered in Johannesburg, Nairobi, Kuala Lumpur or Riyadh is not directly in scope.

That framing misses how the CSRD reaches non-EU firms. Two channels bring ESRS into the operating world of African, Middle Eastern and Asian insurers:

• Parent-group consolidation. Any EU-headquartered group consolidating a non-EU subsidiary will need ESRS data from that subsidiary at a granularity that matches the group disclosure.
• Value-chain reporting. The CSRD explicitly requires reporting along the value chain. For a reinsurer in Europe, that chain includes cedant insurers in Africa and Asia. For a fronting arrangement, that chain includes the local policyholder book.

This post walks through the five ESRS features that matter for non-EU insurers, and the preparation that is defensible without overreach.

1. Double Materiality Is Non-Negotiable

flowchart LR
    A[Outside-In<br/>Risks to the firm] --> C[Sustainability<br/>Matter]
    B[Inside-Out<br/>Firm's impacts on<br/>society and environment] --> C
    C --> D[Disclose if<br/>either is material]
    
    style A fill:#0A0F1E,stroke:#00C2CB,color:#F0F0F0
    style B fill:#0A0F1E,stroke:#C9A84C,color:#F0F0F0
    style C fill:#0A0F1E,stroke:#F0F0F0,color:#F0F0F0
    style D fill:#0A0F1E,stroke:#00C2CB,color:#F0F0F0

ESRS makes double materiality the binding test. A matter is disclosable if it is material from either direction:

• Financial (outside-in): the matter poses a risk or opportunity to the firm.
• Impact (inside-out): the firm’s activities impose an impact on people or the environment.

The IFRS Sustainability Disclosure Standards (IFRS S1 and S2), by contrast, apply financial materiality only. This gap matters for non-EU insurers consolidated into EU groups, because an impact-material issue that is not financially material still needs to be captured for the group report. The local data collection workstream cannot be scoped against IFRS S1 and S2 alone.

2. Climate Is Presumptively Material

ESRS E1, the climate standard, carries a strong presumption that climate is material for nearly every reporting entity. Non-materiality has to be affirmatively demonstrated rather than assumed. For insurers, this is almost always unwinnable — underwriting exposures, invested assets, and business continuity are all climate-sensitive.

For an African or Asian insurer feeding data to an EU parent, the practical implication is that the full set of ESRS E1 data points — transition plans, scenario analysis outputs, Scope 1/2/3 emissions, climate-related targets — will be requested. A short-form sustainability report designed for the local market will not satisfy the group requirement.

3. Value-Chain Scope Reaches Across Borders

ESRS requires disclosure along the value chain where information is material. Reporting relief and phase-in provisions soften this — the first three years allow entities to explain rather than fully report upstream/downstream data — but the direction is clear. By 2027 reporting, value-chain data is expected to be integral.

For reinsurers this is already practical. A European reinsurer sourcing premium from a Southern African cedant will need climate-exposure data on the cedant’s book. For life reinsurers, mortality experience data feeding into biometric assumptions becomes a value-chain disclosure. The line between the reinsurer’s own data and the cedant’s data blurs.

For the cedant, the question is whether to wait for the reinsurer to ask, or to get the data infrastructure in place proactively. The latter is the stronger position at renewal — it is easier to negotiate terms when you can deliver the data the counterparty’s compliance team is asking for.

4. Assurance Changes the Tolerance for Judgement

ESRS disclosures are subject to assurance. The first phase is limited assurance; the EU’s stated intent is to move to reasonable assurance as the framework matures. This is closer to the standard of proof applied to financial statement line items than to the typical narrative sustainability report.

The operational consequence is that internal control frameworks built for financial reporting — segregation of duties, documented judgement, audit trail, versioning — need to extend to sustainability data. For actuarial functions this is a familiar discipline. For sustainability teams operating outside a controlled-data environment, it is new ground, and the transition cost is not small.

5. Interoperability With ISSB

ESRS and the IFRS Sustainability Disclosure Standards were developed with interoperability in mind. The two frameworks share the TCFD four-pillar structure, align substantially on climate data points, and the IFRS Foundation and EFRAG published a joint interoperability statement setting out how S1/S2 disclosures can be used to satisfy the ESRS E1 financially-material subset.

For a non-EU insurer applying IFRS S1 and S2 locally — which is becoming the default in South Africa, Malaysia and the Gulf — the interoperability position is that S1/S2 disclosures carry forward into group ESRS reporting on the financial-materiality dimension. What remains to be built is the impact-materiality overlay: the inside-out side of double materiality, which S1 and S2 do not require.

What to Do Now

A defensible preparation plan for a non-EU insurer with European connections has three tracks:

1. Identify the EU touchpoints. Group consolidation, reinsurance counterparties, large corporate clients with EU parents. Each is a potential channel for ESRS data requests.
2. Scope a double-materiality assessment. This is the intellectual backbone of ESRS. Even if the firm does not report directly, an assessment protects against inconsistent answers to different counterparties asking different things.
3. Align the metrics layer. Wherever possible, build the sustainability metrics store once — IFRS S1 and S2 data points first, then extend to cover ESRS E1 climate data points that do not overlap. Duplicated measurement is the most expensive failure mode.

ESRS is not the last sustainability reporting standard, and nor will it become the single global standard. The practical reality is that African, Middle Eastern and Asian insurers sit in a multi-standard world — local prudential authority guidance, IFRS S1 and S2, ESRS through group and value-chain channels, and regime-specific requirements in each of the markets where business is written.

The firms that handle this well are the ones that treat sustainability reporting architecture the same way they treat IFRS 17 architecture: one controlled data spine, clear lineage, and frameworks that can absorb the next standard without a rebuild.