ST Telemedia Global Data Centres (STT GDC) has published its 2024 Environmental, Social and Governance (ESG) report, revealing significant progress in its sustainability efforts, including a group-wide renewable energy usage of 78.5%. Headquartered in Singapore, STT GDC is aiming to achieve carbon-neutral data centre operations by 2030, supported by a broader strategy built on three core ESG pillars: environmental impact, workplace well-being, and responsible business practices.
The ESG report outlines a series of operational milestones and environmental gains as the company expands its digital infrastructure footprint while committing to long-term sustainability.
Significant progress in renewable energy and emissions reduction
A key highlight in 2024 was STT GDC’s use of renewable energy, which surpassed internal targets to reach 78.5% across the group. The company also recorded a 22.9% year-on-year reduction in carbon emissions. These achievements were underpinned by several major initiatives, including the issue of S$500 million in Sustainability-Linked Perpetual (SLP) securities—the first of its kind in Singapore’s bond market, Asia’s first public benchmark SLP, and the first by a global data centre company.
“As the digital economy accelerates, our responsibility as infrastructure providers extends beyond simply supporting growth; we must lead with purpose and innovation,” said Bruno Lopez, President and Group Chief Executive Officer at STT GDC. “These achievements reflect our unwavering commitment to achieving carbon neutrality by 2030 while delivering the resilient, efficient infrastructure that powers our digital world.”
Other environmental milestones include the deployment of hydrotreated vegetable oil (HVO) as a low-emission fuel for backup generators in Singapore—making STT GDC the first data centre operator in the country to do so. The group also piloted an AI-based autonomous control system to optimise cooling efficiency in a hybrid cooling environment, a first among data centre operators in Asia.
Additional performance metrics outlined in the report include a 66.2% drop in carbon intensity from a 2021 baseline, an 11.2% improvement in power usage effectiveness since 2020, and a 34.5% improvement in water usage effectiveness over the same period.
Strengthening workplace safety, training, and inclusion
On the social front, STT GDC has maintained a strong track record in workplace safety, reporting zero serious work-related injuries or fatalities since 2020, and a Total Recordable Incident Rate (TRIR) of 0.1 over more than 25 million hours of work across its construction and operations programmes.
The company continued investing in workforce development in 2024, averaging 23.5 training hours per employee to keep pace with industry trends and emerging technologies. Its offices in India, Singapore, and Indonesia were recognised as Great Place to Work-certified, with India achieving the milestone for five consecutive years.
In Indonesia, the STT GDC team also engaged in conservation efforts by planting 1,000 mangrove trees in Dusun Tangkolak, Karawang, West Java. The initiative contributes to coastal protection, biodiversity, and climate mitigation.
Reinforcing ethical business practices
STT GDC reaffirmed its commitment to ethical and transparent operations. The company upholds a zero-tolerance stance towards bribery, kickbacks, and corruption. All employees and stakeholders representing the company are required to adhere to internal policies and anti-corruption laws.
By the end of 2024, 100% of staff had completed anti-corruption training. The group also reported zero incidents of corruption over the past year.
STT GDC’s 2024 ESG report reflects its ongoing efforts to align business growth with responsible practices, laying the groundwork for more sustainable data centre operations across global markets.
