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DayOne Chonburi Tech Park (CTP1)

Amata City Chonburi, Chonburi, Thailand · EEC (Eastern Seaboard) market · location approximate to district level

DayOne Chonburi Tech Park (CTP1) is a data center project in Amata City Chonburi, Thailand, operated by DayOne (GDS International). It is under construction. It is planned for 120 MW of IT load.

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Stage
Under construction
Planned IT load
120 MW
Running now
Not disclosed
Operators rarely publish this
Operator
DayOne (GDS International)
Colocation
AI workloads
Confirmed
Evidence grade
Corroborated
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

Construction or financing is evidenced, or several independent signals agree. The rules are fixed and published on the Methodology page.

Reaching this stage requires a dated construction source, which corroborates the project on its own.

Named funderYes
Disclosed clientNo
Committed or approved capitalYes
Dated, sized phaseNo
Three or more sourcesYes
Dated source in the last 24 monthsYes

AI workloads

StatusConfirmed

Liquid cooling designed in campus-wide (DayOne PR, Mar 2025) and stated cloud/AI purpose; >100MW modern greenfield. No named AI tenant yet. Liquid cooling stated by w.media on 2025-03-18. Liquid cooling integration (campus-stated, type not detailed).

Phases

Phase 1 · Under constructionSize not published, target 2026
Phase 2 · AnnouncedSize not published

Who is behind it

OperatorDayOne (GDS International) · Colocation
Funder, EquityGDS Holdings

No tenant disclosed. Most colocation leases are confidential, so this says nothing about occupancy.

Money at this site

Announced investment, 2025-03THB 28bn (about US$831m)

The figure covers the whole campus.

Land
Land sellerAmata Corporation PCL (Amata City Chonburi Industrial Estate) · 72 rai · Nov 2024 Confirmed source ↗
Phase 1 land purchase; area per KaoHoon; Amata release also cites floating solar access
Land sellerAmata Corporation PCL · 41.3 rai · Nov 2025 Confirmed source ↗
CTP1 expansion parcel (MoU with Amata), lifts CTP1 to 300MW; CTP2 (Chonburi Tech Park Plot 2) under MoU, area not disclosed
Power supply
Renewable power dealAmata B.Grimm Renewable Energy Company Limited (AMBRE) · 42.5 MW · 22kV · Nov 2025 Confirmed source ↗
Floating solar in Amata City Chonburi, initial capacity 42.5 MWp, COD expected 2027. · Delivered through the PEA grid under a tripartite structure with DayOne, AMBRE and PEA. Capacity is peak solar MWp. · Applies to the whole campus.
Renewable power dealProvincial Electricity Authority (PEA) · Nov 2025 Confirmed source ↗
AMBRE floating solar of 42.5MWp at 22kV delivered through the PEA grid under a tripartite DayOne, AMBRE and PEA structure, from 2027. The expansion lifts site power capacity to 300MW. · Applies to the whole campus.
Water and cooling
CoolingDirect liquid cooling Reported source ↗
Liquid cooling integration (campus-stated, type not detailed)

Sources checked 2026-09-13

  1. gds-services.com
  2. amata.com
  3. pattayamail.com
  4. datacenterdynamics.com
  5. dayonedc.com
  6. amata.com
  7. datacentermap.com
  8. datacenterdynamics.com
  9. dayonedc.com
  10. DayOne Launches Inaugural Tech & AI Career Expo in Thailand, Showcasing Commitment to Digital Infrastructure and Talent Development (PR Newswire (DayOne), 2026-04-25)
  11. DayOne Bangkok Data Center in Thailand | SEA Strategic Digital Crossroads (DayOne (operator page, undated, fetched 2026-09-13), 2026-09-13)
  12. ชลบุรีเนื้อหอม ดาต้าเซ็นเตอร์-ร.พ. แห่ลงทุน รับเมืองใหม่ EEC (Thansettakij, 2026-07-17)

More in EEC (Eastern Seaboard)

Also run by DayOne

Planned MW is IT load, the power available to servers, unless marked otherwise. Running capacity is rarely published, so a missing figure means undisclosed. Definitions, sourcing standards and evidence rules are on the Methodology page. Data is CC BY-NC 4.0. Corrections go to [email protected]. Dataset updated 2026-09-26.