ST Telemedia Global Data Centres (STT GDC) today published its 2025 Environmental, Social and Governance (ESG) Report, highlighting significant progress in responsible scaling. The Singapore-headquartered global data centre provider reported 83.2% renewable energy usage, a 70.5% reduction in carbon intensity from its 2021 baseline, and a 41.2% improvement in water usage effectiveness (WUE) from the 2020 baseline. These achievements underscore the company's commitment to meeting accelerating demand, including from AI-driven workloads, through infrastructure that is more resilient, efficient and sustainable by design.
Bruno Lopez, President and Group Chief Executive Officer of STT GDC, emphasized that responsible scaling is a commercial and operational imperative. “The next phase of digital growth will be defined by how the industry resolves the tension between rising demand — particularly from AI — and the finite nature of energy, water and land,” he said. The report positions responsible growth as a core business discipline, linking sustainability performance to long-term asset resilience, customer trust and operational excellence.
Key environmental achievements include surpassing STT GDC's 2028 carbon intensity target three years ahead of schedule, alongside a 15.2% year-on-year reduction in absolute Scope 1 and 2 emissions. The company also improved energy efficiency, achieving an average Power Usage Effectiveness (PUE) of 1.44, a 13.0% improvement from the 2020 baseline. Enhanced water stewardship resulted in a 41.2% improvement in WUE, supported by a balanced approach to managing energy and water use in cooling systems. Additionally, 48% of its data centres achieved green building certification, reflecting integration of sustainability considerations across the lifecycle of its facilities.
In building a safe and future-ready workforce, STT GDC maintained zero work-related fatalities and a Total Recordable Incident Rate (TRIR) of 0.1 across more than 41 million hours worked. The company provided an average of 18 training hours per employee and advanced diversity with 21.7% women representation. Talent development initiatives included the DC Power Up programme and partnerships with 10 Institutes of Higher Learning across its markets.
Strengthening governance and resilience, STT GDC ensured 100% of employees completed anti-corruption training and enhanced enterprise-wide risk management incorporating climate, cybersecurity and operational risks. The company advanced cybersecurity and operational resilience through executive-level cyber exercises and risk assessments across key facilities. Supply chain governance was improved by embedding ESG criteria into procurement processes.
These efforts come as data centre operators face growing expectations to deliver capacity while managing energy, water, climate and cybersecurity risks with greater transparency and accountability. The full 2025 ESG Report is available at https://www.sttelemediagdc.com/about-us/our-esg-progress.
