How well evidenced is it
Running capacity. The site is operational or expanding. On record: named funder, disclosed client (reported), committed or approved capital, dated, sized phase, three or more sources, dated source in the last 24 months. Criteria.
AI workloads
StatusConfirmed
direct-to-chip liquid cooling per operator
Access to AI chips
GradeNo US licence required
This country carries no US destination-based licence requirement for advanced AI chips as the rules are enforced today. Access is a commercial matter between the project and its vendors. Criteria.
Phases
Initial phases · Operational50 MW, target 2024
Full build (20 halls) · Under construction150 MW
Stage history
Who is behind it
OperatorAirTrunk · Colocation
Funder, EquityBlackstone
Funder, EquityCPP Investments
Who uses the compute
Tenant · hyperscalerByteDance · reported, unconfirmed
as of 2025-10-16
W.Media, citing the Australian Financial Review's report that Blackstone is weighing a sale of JHB1, states 'JHB1 was opened last year and currently hosts several big-name customers including TikTok owner ByteDance'. Press, unnamed sources, so stays reported.
Source · Blackstone mulls selling AirTrunk's Johor data center (W.Media, 2025-10-16)
Money at this site
Announced investment, 2025-02RM9.7bn (about US$2.2bn)
The figure covers several facilities.
Platform deals that include it
Blackstone/CPP acquisition of AirTrunk
Platform acquisition, 2024-09US$16.1bn
AirTrunk Malaysia total commitment
Country programme, 2026-05US$6.8bn
IFC investment in AirTrunk Johor
Debt, 2026-05-29US$175m
Platform capital spans several sites. It is never added to this project's own figure.
Project team
Main contractorLeighton (Malaysia) · Jul 2026 Reported source ↗ Main contractor for JHB1 and JHB2. Oversees construction and fit-out. AirTrunk manages procurement and subcontractors do the on-site work.
Grid and substation worksMutu Nusantara Sdn Bhd · RM11.2m (≈US$2m) · Jun 2023 Reported source ↗ Sub-contract to install, test and commission 33kV aluminium XLPE and 132kV copper XLPE single-core underground cables and accessories from the Gelang Patah transmission main intake to JHB1. Letter of award dated 20 Jun 2023 from Rentak Segar Sdn Bhd, completion targeted Nov 2023.
Grid and substation worksRentak Segar Sdn Bhd · Jun 2023 Reported source ↗ Contractor for the 33kV and 132kV underground cable link from the Gelang Patah transmission main intake to JHB1. It let the cable sub-contract to Mutu Nusantara (MN Holdings).
Land
Land sellerSouthern Industrial and Logistics Clustre (SILC) · Jul 2026 Reported source ↗ Source says all JHB1 and JHB2 plots were acquired from the SILC and no further land acquisition is expected. Plot area and tenure not given.
Power supply
132kV diverse HV feeds; design PUE 1.15
On-site solarPekat Solar (Pekat Group, Bursa) · 1 MW · Nov 2024 Confirmed source ↗ Rooftop solar, AirTrunk's first onsite RE in region
Grid supplyTenaga Nasional Berhad (TNB) · 132kV · Aug 2023 Confirmed source ↗ AirTrunk received an Electricity Supply Agreement certificate from TNB for its Johor Bahru hyperscale data centre at a ceremony in Kuala Lumpur. No capacity is given. Separate press says the 132kV and 33kV feed runs by underground cable from the Gelang Patah transmission main intake.
Renewable power dealNot named (private PPA from a solar farm) · 30 MW · Jul 2026 Confirmed source ↗ 30MW of solar through a private power purchase agreement, plus 1MW of rooftop solar on each data centre. · IFC gives this for JHB1 and JHB2 together and says JHB1 emissions should fall as the PPA comes online. The ib vogt 29.99MWac solar VPPA held on the JHB3 row may be the same deal. No source links them, so it is not merged. · Applies to the whole campus.
Water and cooling
WaterRecycled wastewater · Johor Special Water (IWK treated effluent) Confirmed source ↗ Recycled water scheme covers JHB1 and JHB2; plant not operating as of 2026-07-23 (The Star)
CoolingDirect liquid cooling · design PUE 1.15 Confirmed source ↗ Liquid cooling system implemented at JHB1 since 2024 (facility-stated)
WaterMains drinking water · Ranhill SAJ Confirmed source ↗ PUE target is stated jointly for JHB1 and JHB2 as below 1.5. AirTrunk portfolio PUE was 1.32 in FY2025.
CoolingAir cooled · design PUE <1.5 Confirmed source ↗ Dry cooled halls; no ozone depleting substances used.
WaterRecycled wastewater · Johor Special Water (JSW), planned water purification plant · 910 million litres a year Confirmed source ↗ The 910 ML a year is AirTrunk's estimate for JHB1 and JHB2 together at 100% utilisation, not JHB1 alone. A greenfield water purification plant that recycles wastewater, with a supply pipeline and pumping stations, is planned and will be built and run with JSW. Ranhill SAJ holds the Johor water supply concession.
IFC says JHB1 has dry cooled halls that use no ozone depleting substances.