TR 149:2026: Singapore's new sustainability standard and what it means for carbon accounting

When a procurement team at a Singapore-based buyer asks a supplier for evidence of sustainability performance, they want numbers their auditor will accept. TR 149:2026, launched on 21 May 2026, gives organisations in Singapore a structured way to show what they have measured, how, and where they sit on the sustainability maturity curve.

What TR 149:2026 covers

TR 149 was developed by Enterprise Singapore and the Singapore Standards Council, with A*STAR Singapore Institute of Manufacturing Technology (SIMTech) and the Singapore Manufacturing Federation as partners. It launched at the Singapore Climate Transition Forum during Ecosperity Week. Unravel Carbon's team sat on the working group that helped draft it.

The framework has four maturity levels (Essential, Bronze, Silver and Gold) and five dimensions: People Readiness, Structure, Operations, Supply Network, and Product Life Cycle. Essential is self-declared. Bronze, Silver and Gold each need progressively stronger evidence. For emissions-related dimensions, the standard expects measured rather than estimated data, with an audit trail behind every figure.

TR 149 also anchors Green 100, the Council for a Competitive Climate Transition movement that uses the standard as the framework for SME supplier badging.

What this means for suppliers in Singapore

Procurement teams are the channel through which TR 149 will reach most suppliers. Large Singapore buyers are now disclosing value-chain emissions under the ISSB-aligned SGX climate framework, the GHG Protocol, and trade-linked rules such as the EU CBAM. To meet those obligations, they need primary data from suppliers. A supplier that can demonstrate Bronze, Silver or Gold maturity under TR 149 gives buyers a structured signal that the numbers they receive are measured and auditable. Suppliers without that evidence increasingly lose ground to rivals who have it.

How software-led carbon accounting supports TR 149 compliance

For most Singapore suppliers preparing for TR 149, the biggest practical hurdle is operational rather than strategic. The day-to-day work of collecting, calculating and auditing data across Scope 1, 2 and 3 and product lines is what slows companies down.

Unravel Carbon's AI agents handle this work end to end: Scope 1, 2 and 3 calculations aligned to the GHG Protocol with TÜV Rheinland certification against ISO 14064, product carbon footprints from cradle-to-gate inventories, supplier data collection across 70 plus languages, and a full action log behind every number so auditors can trace the calculation. A Singapore-based paper and printing customer is already using the platform to calculate auditable value-chain emissions from data already inside the business, building the foundation to demonstrate performance under TR 149.

Frequently asked questions

When did TR 149:2026 launch?

On 21 May 2026 at the Singapore Climate Transition Forum during Ecosperity Week.

Who developed it?

Enterprise Singapore and the Singapore Standards Council, with A*STAR SIMTech and the Singapore Manufacturing Federation as partners.

What does the framework cover?

Four maturity levels (Essential, Bronze, Silver, Gold) across five dimensions (People Readiness, Structure, Operations, Supply Network, Product Life Cycle).

Is TR 149 mandatory?

No. It is a voluntary Technical Reference. The commercial gravity comes from buyers and regulators who increasingly require the evidence it structures.

How does it relate to carbon accounting in Singapore?

TR 149 sets the maturity bar against which carbon accounting work is judged. For any dimension touching emissions, the standard expects measured data with an audit trail.