Takeaways
- Scope 1 and Scope 2 GHG verification is becoming important as Malaysia moves towards NSRF-aligned sustainability assurance.
- Companies should prepare early by improving emissions data, evidence, methodology and internal controls.
- Digital tools can help companies organise GHG data and reduce manual errors without overcomplicating the process.
- GHG verification requires support from finance, sustainability, operations, facilities and senior management teams.
Greenhouse gas (GHG) reporting is becoming more important for Malaysian companies as the National Sustainability Reporting Framework (NSRF) brings sustainability disclosures closer to financial reporting.
According to the official National Sustainability Reporting Framework issued by the Securities Commission Malaysia, Malaysia aims to move towards reasonable assurance for Scope 1 and Scope 2 GHG emissions starting from 2027, subject to the assurance framework consultation. This means companies should start preparing now, instead of waiting until verification becomes urgent.
For boards, senior management, finance teams and sustainability teams, GHG Scope 1 and Scope 2 verification is no longer just an ESG reporting task. It is part of governance, risk management, investor communication and climate-related financial disclosure.
Companies that are still at the early stage may first refer to Malaysia’s National Sustainability Reporting Framework to understand how NSRF and IFRS S1 and IFRS S2 are shaping sustainability reporting expectations in Malaysia.
Table of Contents
Why Companies Should Treat GHG Data as Assurance-Ready Information
Many companies already disclose Scope 1 and Scope 2 emissions in their sustainability reports. However, NSRF assurance expectations will require companies to go beyond basic disclosure.
The data must be complete, traceable and supported by reliable evidence. Companies need clear data ownership, documented assumptions, proper source records and a consistent review process before the figures are reported externally.
For example, electricity consumption should be supported by utility bills or meter readings. Fuel consumption should be supported by invoices, fuel card records or system reports. Refrigerant data should be supported by maintenance logs or service reports.
The key question is no longer whether the company can calculate its emissions. The more important question is whether the company can explain, evidence and defend the numbers during an assurance or verification process.
For a broader overview of GHG verification preparation, companies can refer to What Malaysian Companies Need to Prepare Before a GHG Verification.
Why GHG Verification Matters Under NSRF and IFRS S2
Under IFRS S2 Climate-related Disclosures, companies are expected to disclose GHG emissions and explain how climate-related risks and opportunities affect their business. NSRF strengthens this direction by aligning Malaysian sustainability reporting with ISSB-based standards.
GHG verification improves the credibility of emissions data. It gives investors, regulators, customers and lenders greater confidence that the reported figures are supported by proper records and a clear calculation process.
Poor carbon data can weaken climate disclosures, create reporting risk and affect stakeholder trust. Strong GHG data, on the other hand, supports better decision-making on energy, cost management, climate risk and decarbonisation.
Companies preparing for climate-related disclosures can also read Preparing for Climate-Related Financial Disclosures in Malaysia: A Practical Guide for Businesses to understand how emissions data connects with governance, strategy, risk management, metrics and targets.
The Role of Digitalisation in GHG Data Management
Many companies still manage GHG data through spreadsheets, email attachments and manual consolidation. This may work at the beginning, but it can become difficult when there are multiple sites, departments and evidence files.
Digitalisation does not need to be complex. A standard GHG data template, internal database, carbon calculation tool or ESG reporting software can help companies organise data, reduce errors, track evidence and improve version control.
For companies that want a more structured approach, tools such as TT-Green can support carbon calculation, data organisation and reporting preparation. The objective is not to replace internal responsibility, but to make the GHG reporting process more consistent, traceable and easier to review before external verification.
What Companies Need to Prepare Before Verification
Before engaging an external verifier, companies should strengthen the foundation of their GHG inventory.
1. Define clear reporting boundaries
Companies must decide which entities, subsidiaries, sites and operations are included in the GHG inventory. The boundary should be aligned with the company’s reporting structure and clearly documented.
This is important because incomplete boundaries may lead to missing emission sources, inconsistent reporting or restatement issues.
2. Map all Scope 1 and Scope 2 emission sources
Companies should prepare a complete emission source register. This should cover electricity, fuel, generators, company vehicles, refrigerants and other relevant direct emission sources.
Each emission source should have a data owner, evidence type and collection frequency. This helps prevent last-minute data gaps during verification.
3. Collect reliable activity data
Activity data is the operational data used to calculate emissions. Examples include electricity consumption in kWh, diesel usage, petrol consumption, LPG usage and refrigerant top-up records.
Each data point should be supported by evidence such as invoices, utility bills, meter readings, fuel card records, maintenance logs or system reports.
4. Document the calculation methodology
A common weakness in GHG reporting is the lack of a written methodology. Companies should document the formulas, emission factors, assumptions, unit conversions, exclusions and base year approach.
Using recognised frameworks such as ISO 14064-1 and the GHG Protocol can help companies improve consistency and verification readiness. Companies can refer to How to Implement ISO 14064 for Verification in Malaysia: A Practical Guide for Companies for a more structured approach.
5. Strengthen internal controls
GHG data should be managed with similar discipline to financial and operational data. Companies should assign reviewers, maintain version control, organise supporting documents and conduct internal checks before disclosure.
This is especially important as sustainability reporting assurance becomes more formal in Malaysia. For related preparation, read Preparing for Sustainability Reporting Assurance in Malaysia.
Common Gaps Companies Should Avoid
Many companies face similar challenges when preparing for GHG verification, including:
- Missing electricity, fuel or refrigerant records
- Unclear organisational boundaries
- Inconsistent emission factors
- Manual spreadsheets without version control
- No formal review process
- Weak coordination between departments
- Poor evidence management
- Lack of board or management oversight
These gaps can delay verification and reduce confidence in the final emissions data.
Why Finance and Management Teams Should Be Involved
GHG verification should not sit only with the sustainability team. Finance teams are important because NSRF and IFRS S2 connect sustainability information with financial reporting, governance and investor decision-making.
Management teams should ask whether the company has reliable data, clear responsibilities, adequate systems and sufficient internal capability. They should also consider whether emissions data may affect business planning, operational efficiency, energy cost management, climate risk assessment and decarbonisation targets.
What Companies Should Do Next
Companies should start by conducting a GHG readiness review. This includes checking current data availability, identifying missing records, reviewing calculation methods and assigning responsibilities across departments.
The next step is to prepare a standard GHG data collection template or deploy a carbon calculation tool to improve data consistency, evidence tracking, version control and internal review. Companies should also train relevant teams so that carbon accounting becomes part of routine business reporting, not a year-end rush.
Early preparation will help organisations reduce verification findings, improve disclosure quality and prepare for NSRF assurance expectations more confidently.
Conclusion
GHG Scope 1 and Scope 2 verification in Malaysia is becoming a key part of NSRF readiness. Companies should start strengthening their carbon data, evidence, internal controls and review process before assurance requirements become urgent.
Digitalisation can support this process by making GHG data easier to collect, track, review and verify, as long as the approach remains practical and proportionate.
Bernard Business Consulting supports organisations with practical NSRF advisory, GHG accounting, ISO 14064-1 readiness, sustainability reporting, training and implementation support.
Contact us to find out how Bernard Business Consulting can support your organisation with practical advisory, training, reporting, and implementation support related to GHG Scope 1 and Scope 2 Verification in Malaysia.
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