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STT Bangkok 1 data center

Hua Mak, Bang Kapi, Bangkok, Thailand · Bangkok metro market · location approximate to district level

STT Bangkok 1 is a data center project in Hua Mak, Bang Kapi, Thailand, operated by ST Telemedia Global Data Centres (Thailand). It is operational. It is planned for 20 MW of IT load. The operator reports 20 MW running.

Latest change on record: moved to operational on 16 September 2021.

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Stage
Operational
Planned IT load
20 MW
Running now
20 MW
Operator
ST Telemedia Global Data Centres (Thailand)
Colocation
AI workloads
Confirmed
Evidence grade
Verified
Will it get built?Built7 of 7 gates passed
✓ Land secured✓ Power arranged✓ Approvals granted✓ Money committed✓ Tenant or own use✓ Builder appointed✓ Construction started

Build odds is ArusGrid's reading of the public record, not a forecast, a rating or advice. It counts the gates this project has passed in public sources. Private progress does not show, a passed gate can be undone, and projects that pass every gate still stop. The method has not yet been tested against outcomes. How it works.

How Thailand approves, powers and taxes data centers is on Data center rules in Thailand.

Thailand, 2026-09-24. Thailand asked developers on 4 September 2026 to pause 49 data centres under construction and froze 117 pending approvals while it writes new rules, due by mid October. The government has said it cannot legally enforce the pause. No list of affected projects has been published, so no Thai project has changed stage on this basis. A separate data centre electricity tariff has been created with no rate set.

How well evidenced is it

Running capacity. The site is operational or expanding. On record: named funder, disclosed client (reported), three or more sources, dated source in the last 24 months. Criteria.

AI workloads

StatusConfirmed

Liquid cooling stated by STT GDC on 2025-10-22. Chilled water plant with cooling towers (N+1) plus direct-to-chip and immersion cooling (facility factsheet).

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.

Stage history

2019-05Under construction · sttgdc.com
2021-09-16Operational · datacenterdynamics.com

Who is behind it

OperatorST Telemedia Global Data Centres (Thailand) · Colocation
Funder, Joint venture partnerFrasers Property
Funder, EquityKKR
Funder, EquitySingtel

Who uses the compute

Runs compute here · GPU cloudSIAM.AI Cloud · reported, unconfirmed

First NVIDIA GB200 NVL72 cluster; 48 NVL72 systems (about 3,500 GPUs) planned, two installed at announcement, full installation targeted mid-2025 · as of 2025-02-13

Siam AI and STT GDC Thailand announced jointly that Siam AI's first GB200 NVL72 cluster is installed at STT Bangkok 1 (Busrin Pradisthyont, STT GDC Thailand country head, quoted). Thai press puts the first 48 systems at about THB 7bn. This is a GPU cloud hosting its own fleet in STT's building, so it is a compute user rather than a hall lease.

Source · Siam AI เริ่มให้บริการ NVIDIA GB200 NVL72 ครั้งแรกในเอเชีย คาดลงทุนกว่า 70,000 ล้านบาทในปีนี้ (beartai, 2025-02-13)

Source · Siam.AI to invest B70bn to expand Thailand AI infrastructure (Bangkok Post, 2025-02-13)

Platform deals that include it

KKR + Singtel acquisition of STT GDC (platform M&A)
Platform acquisition, 2026-09-01US$5.1bn

Platform capital spans several sites. It is never added to this project's own figure.

Power supply
Dedicated substation70 MVA · Oct 2025 Confirmed source ↗
Onsite 70MVA substation fed from two main stations. 2N UPS, N+2 generators, 27h fuel. Connected capacity, not IT MW.
Water and cooling
CoolingDirect liquid cooling · design PUE 1.4 Confirmed source ↗
Chilled water plant with cooling towers (N+1) plus direct-to-chip and immersion cooling (facility factsheet)
CoolingWater-cooled chillers Confirmed source ↗
Chilled water plant with cooling towers in N+1, a chilled water buffer tank and CRAH corridors, plus direct-to-chip and immersion cooling. 48 hours of make-up water storage on site.

Sources

  1. sttelemediagdc.com
  2. sttelemediagdc.com
  3. KKR-Singtel Consortium Completes Acquisition of STTGDC; Company Launches Refreshed Global Brand for Next Phase of Growth (STT GDC via Access Newswire, 2026-09-01)
  4. STT Bangkok 1 Fact Sheet (STT GDC Thailand, 2025-10-22)
  5. STT GDC opens hyperscale data center in Bangkok (DCD, 2021-09-16)
  6. "Frasers Property Thailand" Joins Hands with "STT GDC" (STT GDC Thailand, 2019-05-21)
  7. STT Bangkok 1 Data Centre Achieves Tier III Certification of Constructed Facility from Uptime Institute (STT GDC Thailand, 2022-06-17)
  8. ST Telemedia Global Data Centres Commences Construction for Third Data Centre in Bangkok (ST Telemedia Global Data Centres, 2025-03-03)
  9. Hua Mak data centre sets new Thai standard with 2 global awards (The Nation Thailand, 2020-07-01)

Same campus, STT Hua Mak

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Also run by STT GDC

All projects in Bangkok metro · All projects in Thailand · All STT GDC projects · All projects operational · Data center rules in Thailand · Full directory

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