Singapore-based telecommunications group StarHub has secured its first-ever ‘A’ rating in the 2025 Climate Change Assessment conducted by CDP, placing the company among a small group of organisations globally recognised for climate leadership, transparency, and action.

The ‘A’ score represents StarHub’s highest climate rating to date and marks a significant milestone in how the company manages, measures, and communicates climate-related risks and opportunities. It reflects a shift from compliance-led disclosure toward more integrated, operational climate governance.

 

From Disclosure to Embedded Climate Management

 

Over the past year, StarHub has moved beyond meeting reporting requirements to embedding climate considerations into everyday operations and long-term planning. As a telecommunications operator running always-on digital networks and data centres, energy consumption remains a material challenge.

In response, StarHub has focused on reducing the carbon intensity of its operations through improved energy efficiency across network sites and data centres. Measures include advanced energy monitoring, greater use of virtualisation, and the phased retirement of legacy systems. These efforts are complemented by increased renewable energy adoption through renewable electricity purchases and on-site solar installations across company facilities.

 

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Strengthening Value Chain and Scope 3 Data Quality

 

A key factor behind the ‘A’ rating was StarHub’s more rigorous approach to emissions data, particularly across its value chain. The company adopted a stewardship-led supplier engagement model, working closely with key partners to obtain bottom-up, activity-based emissions data.

This approach enabled more accurate refinement of datasets across StarHub’s most material Scope 3 emission categories and strengthened the credibility of its disclosures. The data improvements are supported by a structured decarbonisation and supplier engagement roadmap anchored in science-based principles, guiding emissions reduction efforts toward 2030 and 2050.

 

Aligning Targets, Performance, and Transition Planning

 

StarHub also demonstrated closer alignment between emissions performance and its science-based targets, reflecting a more mature climate strategy focused on active risk management rather than static reporting. The company continues to disclose progress and challenges transparently, acknowledging the complexity of decarbonising digital and network-intensive operations.

These disclosure improvements are underpinned by concrete actions already in place. In 2024, StarHub introduced long-term Power Purchase Agreements (PPAs) to expand renewable energy use across its operations, supporting a steady reduction in the carbon footprint of its network infrastructure.

 

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Looking Ahead

 

Achieving an ‘A’ rating from CDP marks an important inflection point in StarHub’s sustainability journey. It signals stronger governance discipline, improved data integrity, and a sustained commitment to climate action in an energy-intensive sector.

Further details on StarHub’s climate strategy and performance are outlined in its Sustainability Report 2024 and Climate Transition Plan, with the 2025 Sustainability Report scheduled for publication in April 2026.