Singapore’s climate-reporting timetable depends on the company’s listing status, financial year and reporting tier. For suppliers in Southeast Asia and the Gulf, the practical first step is to clarify exactly what a Singapore customer needs, then provide traceable evidence for that request. A customer questionnaire alone does not establish that the supplier has a Singapore statutory reporting duty.

This guide separates the reporting timetable from a suggested operating process. It is written for finance, sustainability, procurement and operations teams that need to turn a broad request for “carbon data” into a defined task.

Key takeaways

  • Confirm the reporting entity and applicable financial year before assigning a deadline.
  • Keep company emissions, site activity and product data distinct; explain any allocation between them.
  • Record missing evidence and estimates openly, with a named owner and a correction date.

Which requirements apply

The SGX guide ties the listed-company timetable to financial years commencing on or after 1 January of the stated year. STI treatment uses membership on 30 June 2025 and continues even if the company subsequently leaves the index. SGX guidance paragraph 4.12

Company groupReporting milestone
All SGX listed companiesScope 1 and Scope 2 emissions from FY2025.
STI constituents at the specified reference dateOther IFRS S2 climate disclosures from FY2025 and Scope 3 from FY2026.
Other listed companiesOther climate disclosures phase in from FY2028 or FY2030. The S$1 billion market-capitalisation test and listing-date rules determine the applicable tier. Scope 3 remains voluntary.
Large non listed companiesACRA identifies annual revenue of at least S$1 billion AND assets of at least S$500 million. Unless exempted, ISSB-based climate disclosures including Scope 1 and 2 start in FY2030.

Use the official rules for the full thresholds, reference dates and exemption conditions. ACRA separately places external limited assurance of Scope 1 and 2 at FY2029 for listed companies and FY2032 for large non-listed companies. ACRA requirements and timeline · SGX listed-company guide

In broad terms, Scope 1 covers emissions from owned or controlled sources; Scope 2 covers purchased energy; and Scope 3 covers other value-chain emissions. These categories help define a request, but they do not replace a documented reporting boundary. ACRA emissions definitions

For a UAE, Saudi Arabian, Malaysian or Indonesian supplier, first ask whether the request concerns a specific shipment, a production site or the whole business. Check contractual commitments and applicable local duties separately. Do not treat every overseas customer’s reporting timetable as your own legal deadline.

Build a useful evidence register

We recommend a single register that connects each requested figure to its origin and reviewer. The following fields are an operational starting point, not an official reporting template.

FieldWhat the team records
Request and boundaryCustomer, reporting period, entity or facility, and the requested activity or product.
Activity evidenceMeter reading, fuel invoice, shipment record or other source; unit and covered dates.
Method and assumptionsCalculation method, factor source and version, allocation basis, estimates and exclusions.
Control and ownerPreparer, checker, document location, unresolved issue, due date and approved version.

For example, “electricity consumption” is incomplete without the site, period and unit. A spreadsheet can look tidy while combining kilowatt-hours with megawatt-hours or calendar-year activity with a different financial year. Ask the checker to trace one reported figure back to its original document before reviewing the rest.

A practical thirty day preparation plan

Days 1 to 5 clarify the request

Ask the customer to confirm the reporting period, required unit, calculation method, intended use and submission date. Identify the accountable manager and agree how missing information will be handled. Save the request and the agreed interpretation together.

Days 6 to 15 assemble the evidence

Collect records already held by finance, facilities, procurement and logistics. Reconcile site identifiers and date ranges. Separate measured activity from estimates. Where a supplier holds the data, send a precise question with an example of an acceptable response rather than forwarding a long questionnaire without explanation.

Days 16 to 25 test one reporting period

Run a small trial for a month or one site. Have someone other than the preparer check unit conversions, calculation references and exclusions. Maintain an issues log showing what changed and why. A trial is useful only if the team can repeat the calculation from the saved evidence.

Days 26 to 30 approve the response

Give the accountable manager a short summary of the figures, limitations and outstanding questions. Share the approved version through an agreed channel. Retain the supporting records and ask the customer whether the response meets the intended purpose before expanding the process.

A hypothetical supplier example

Consider an illustrative UAE packaging supplier serving a Singapore customer. The customer asks for carbon information associated with an order. The supplier has monthly site electricity records but has not prepared a product footprint. Its operations manager asks whether the customer will accept site activity data with a separately explained allocation.

Assume the factory records 120,000 kWh for one month. Using a purely illustrative factor of 0.45 kg CO₂e per kWh gives 54,000 kg CO₂e, or 54 tonnes. This arithmetic demonstrates unit handling only: the factor is invented for this example and must not be used for an actual inventory.

The 54 tonnes is not automatically the order’s footprint. The team still needs an appropriate real factor, an agreed boundary and a defensible allocation method, and must consider any other relevant emissions. If these are unavailable, the response should state that limitation rather than presenting a complete product result. This is a hypothetical scenario, not a client case or an assurance conclusion.

Give the customer a boundary-labelled response

For the fictional packaging supplier, a useful response to the Singapore customer would distinguish three possible deliverables:

Requested outputEvidence currently availableResponse decision
Site electricity activity for the agreed month120,000 kWh with matching site and period recordsProvide the activity with its source references and limitations
Electricity emissions for that monthOnly the invented factor in this teaching exampleDo not send the example’s 54 tonnes as an actual result; select and review a real factor
Full footprint of the customer's orderNo accepted product boundary or allocationExplain the gap and agree a suitable method or alternative information

Ask the customer to confirm whether the site activity is useful as interim evidence. Record its answer with the scope and submission date. Acceptance of an interim dataset does not turn it into a complete product footprint or assurance conclusion.

If the parties later agree an allocation, preserve the total being allocated, the basis, the order quantity and why that basis represents the relevant activity. Reconcile allocated and unallocated portions so the same electricity is not assigned in full to multiple orders. Also identify relevant emissions outside electricity before describing any output as a complete footprint.

Every scenario quantity is fictional. The completed operational outcome is a precise response and an agreed follow-up, not a claim that the supplier has met Singapore's statutory climate-reporting requirements.

Precautions before sharing figures

  • Explain what the figure covers. A site total should not be labelled as a product footprint.
  • Keep estimates visible. Record their basis and replace them when better evidence becomes available.
  • Check the reporting year and current rules again before external release; save the source version used.
  • Share only the necessary supporting information. Redact unrelated personal, pricing or commercially sensitive details.

Avoid broad compliance claims based on completing a spreadsheet. SGX distinguishes full compliance with IFRS Sustainability Disclosure Standards from compliance with the climate-related requirements; each statement depends on meeting the relevant requirements. SGX guidance paragraph 4.14

Frequently asked questions

Does every supplier need a Singapore sustainability report

Do not infer that duty from a customer request. Assess the supplier’s own entity status, applicable jurisdictions and contract. Ask the customer which evidence it needs and how it will use it.

What should a small team do first

Define one request clearly and trace one figure to its source. That exposes gaps in ownership, units and records before the team invests in a larger reporting system.

Can estimated information be sent

Confirm what the applicable framework and customer accept. If an estimate is permitted, explain its method, uncertainty and limitations. Do not relabel estimated data as measured or assured.

Sources and further reading

ACRA sustainability reporting requirements — official overview, page updated 27 July 2026; checked 30 September 2026.

SGX Practice Note 7 6 Sustainability Reporting Guide — listed-company requirements, particularly paragraphs 4.12 to 4.14; checked 30 September 2026.

This article provides general information and an original operational workflow. It does not determine any individual company’s legal obligations or provide assurance over emissions.

For help discussing how requirements translate into an implementation plan, contact QSE Advisory. QSE Advisory is part of the QSE Advisory brand family.

Preparation of this article included AI-assisted research and drafting.

This article is general information. Verify current requirements and seek qualified advice for your specific circumstances.

Reviewer & Assessor

Reviewed by Laraib Naveed Ahmad

Laraib Naveed Ahmad — CEO & Owner, Reviewer & Assessor.

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