Company GHG Emissions Reporting: A Singapore Compliance Guide

Why Company GHG Emissions Reporting Matters in Singapore

Singapore’s regulatory environment around greenhouse gas (GHG) emissions has shifted considerably over the past few years. With the Carbon Pricing Act expanded in scope and the National Environment Agency (NEA) tightening mandatory reporting thresholds, companies can no longer treat emissions data as a back-office concern. For businesses operating within workplace settings, the intersection of environmental reporting and occupational safety is equally significant — the Workplace Safety and Health (WSH) Act places a duty of care on employers that increasingly extends to environmental risk management as part of a holistic risk framework.

Whether your organisation is pursuing bizSAFE certification, aligning with ISO 14001 environmental management standards, or responding to investor and supply chain pressure for verified emissions data, understanding how to structure your company GHG emissions reporting process is now a core operational competency. This guide walks through the regulatory context, a practical reporting checklist, and answers to the questions we most commonly receive from Singapore-based clients.

The Regulatory and Standards Landscape in Singapore

Several frameworks govern or influence how Singapore companies approach GHG emissions reporting. Understanding which apply to your organisation is the first step.

• Carbon Pricing Act (CPA) and NEA Mandatory Reporting: Facilities emitting 2,000 tonnes of carbon dioxide equivalent (tCO2e) or more per year are required to report under Singapore’s mandatory greenhouse gas reporting framework. From 2024 onwards, the carbon tax rate has increased progressively, making accurate measurement directly tied to financial liability.
• WSH Act and WSH (Risk Management) Regulations: The Workplace Safety and Health (Risk Management) Regulations require employers to identify, assess, and control workplace risks. Environmental hazards — including those arising from chemical storage, industrial processes, and energy use — are part of a comprehensive risk register. GHG emissions data often surfaces through this process, particularly for manufacturing and logistics operations.
• ISO 14064-1:2018: This international standard specifies principles and requirements for quantifying and reporting GHG emissions at the organisational level. Many Singapore companies adopt ISO 14064 as the technical backbone of their reporting methodology, particularly when preparing for third-party verification or responding to ESG questionnaires from multinational clients.
• ISO 14001:2015 (Environmental Management Systems): Organisations certified under ISO 14001 are expected to identify environmental aspects and impacts, which includes GHG emissions. Integrating emissions reporting into your EMS reduces duplication of effort and strengthens audit readiness.
• bizSAFE Programme: Administered by the Workplace Safety and Health Council (WSHC), bizSAFE is a five-level programme helping companies build WSH capabilities. While bizSAFE is primarily a safety framework, Level 4 and Star-level organisations increasingly integrate environmental risk management — including emissions tracking — into their risk management plans to meet client and tender requirements.
• GHG Protocol Corporate Standard: Although not a Singapore-specific regulation, the GHG Protocol remains the most widely accepted international methodology for defining Scope 1, Scope 2, and Scope 3 emissions boundaries. Singapore’s mandatory reporting framework is broadly aligned with its principles.

The Ministry of Manpower (MOM) oversees WSH compliance, while NEA and the Energy Market Authority (EMA) have jurisdiction over environmental and energy-related reporting. For companies in sectors such as construction, manufacturing, or facilities management, obligations may arise from multiple agencies simultaneously.

Practical Steps: Building Your GHG Emissions Reporting Process

A structured approach prevents the common pitfalls of incomplete data, inconsistent methodology, and missed deadlines. The following checklist reflects best practice for Singapore-based organisations at any stage of their reporting journey.

• Define your organisational boundary: Decide whether to use the operational control or equity share approach as defined under ISO 14064-1. This determines which facilities and subsidiaries fall within your reporting scope.
• Identify emission sources by scope: Scope 1 covers direct emissions from owned or controlled sources (company vehicles, on-site combustion). Scope 2 covers purchased electricity — a significant source for Singapore operations given grid-based energy use. Scope 3 covers value chain emissions, increasingly required by large buyers and financial institutions.
• Collect activity data systematically: Establish data collection protocols for fuel consumption, electricity bills, refrigerant top-ups, and business travel. Assign data owners within each department and set quarterly review cycles rather than relying on year-end scrambles.
• Apply appropriate emission factors: Use Singapore-specific grid emission factors published by EMA for Scope 2 calculations. For Scope 1, reference IPCC guidelines or Singapore-specific factors where available.
• Integrate with your WSH risk register: Under the WSH (Risk Management) Regulations, your risk assessment should already capture process-related hazards. Map emission sources to existing risk controls — this reduces administrative burden and creates a unified view of operational risk.
• Conduct internal verification before submission: Cross-check calculations, review data gaps, and document assumptions. For NEA-reportable facilities, third-party verification by an accredited body is mandatory.
• Report and disclose: Submit to NEA via the mandatory reporting portal if applicable. Additionally, consider voluntary disclosure through the Global Reporting Initiative (GRI) or CDP if your stakeholders require it.
• Set reduction targets and track progress: Reporting without action is a missed opportunity. Align targets with Singapore’s net-zero commitments and your own operational efficiency goals.

Common Questions on GHG Emissions Reporting

Q: Our company is an SME and we fall below the NEA mandatory reporting threshold. Do we still need to report our GHG emissions?

Not under the Carbon Pricing Act, if you are below the 2,000 tCO2e threshold. However, voluntary reporting is increasingly becoming a commercial necessity rather than a regulatory one. Major Singapore contractors, government-linked companies, and multinational buyers routinely request Scope 1 and Scope 2 data from their suppliers as part of procurement qualification. If your business is pursuing bizSAFE Star status or ISO 14001 certification, having a documented emissions inventory also strengthens your management system audit. Starting with a basic Scope 1 and 2 inventory now positions you well ahead of any future threshold changes.

Q: How does GHG emissions reporting connect to our existing WSH risk management plan?

The connection is more direct than many companies realise. The WSH (Risk Management) Regulations require employers to identify hazards, assess risks, and implement controls across all work activities. Industrial processes that generate GHG emissions — such as solvent use, refrigerant handling, or combustion equipment — are also sources of workplace chemical and fire hazards. A well-constructed risk register will already capture these sources. By extending your risk management documentation to include environmental impact data alongside safety data, you create an integrated record that satisfies both MOM inspectors and environmental auditors. This dual-use approach is particularly efficient for SMEs with limited administrative resources.

Take the Next Step with Sage Shield

Navigating company GHG emissions reporting alongside existing WSH obligations is manageable with the right guidance. At Sage Shield Safety Consultants, we work with Singapore companies across manufacturing, construction, facilities management, and professional services to build emissions reporting frameworks that are accurate, audit-ready, and aligned with both NEA requirements and WSH risk management best practice. Our consultants hold recognised qualifications in WSH and environmental management, and we have supported organisations through bizSAFE certification, ISO 14001 implementation, and NEA mandatory reporting submissions. If you are unsure where to start or want an independent review of your current approach, book a free consultation with our team at sageshield.com/contact. We will assess your obligations, identify gaps, and recommend a practical path forward — without unnecessary complexity or cost.

For the full requirements, scope and certification pathway, see our ISO 14064 Singapore guide.