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CARTIS

DayOne–Hyperco Kouvola Data Center

Kouvola / Koria / Hiivuri, FinlandUnder construction
Evidence
Headline capacity
Not established in published records
Updated
Oct 28, 2026

A developer-issued release dated May 11, 2026 reported the topping-out of the first Koria facility; this construction milestone is not an operational opening. Hyperco, DayOne and TikTok are developing a data center in Koria, Kouvola. The first approximately 28,000 m² facility is under construction, with completion targeted for May 2027.

Capacity

Operating IT capacity: Not established in published records

A missing figure does not mean zero. Planned, utility and generation figures are not operating IT capacity.

Development

Koria first data-center facilityUnder construction

1 building

Approximately 28,000 m² first facility developed for TikTok.

Kouvola customer deliveryPlanned

1 building

Targets are preserved without declaring operation.

Milestones (5)
TikTok confirms €1B Kouvola project

May 6, 2025 · Recorded actual event

Completed · Announced

Source not linked
Kouvola foundation-stone ceremony

Sep 11, 2025 · Recorded actual event

Completed · Construction started

Source not linked
YIT begins main construction

Oct 2025 · Recorded actual event

Completed · Construction started

Source not linked
Customer targets operation by end-2026

Dec 2026 · Forecast / planned record

Forecast · Ready for service

Source not linked
Contractor targets May 2027 completion

May 2027 · Forecast / planned record

Forecast · Construction completed

Source not linked

Participants

DayOne Data Centers

Developer

Sources by role
Developer (1)
Developer (1)
Hyperco Fin HoldCo 1 Oy

Owner

Sources by role
Owner (1)
Hyperco Oy

Developer

Sources by role
Developer (1)
Developer (1)
Developer (1)
TikTok

Tenant

Sources by role
Tenant (1)
Tenant (1)
Tenant (1)
Other participants (2)
City of Kouvola

Government authority

Sources by role
Government authority (1)
Government authority (1)
YIT Corporation

Contractor

Sources by role
Contractor (1)

Capital & incentives

Capital claims and financing records may overlap. Their amounts are not added together.

Capital claims

Tiktok announced investment

Transaction scope

€1,000,000,000

Source

Financing records

Investment commitment

€1,000,000,000

May 6, 2025

TikTok Project Clover investment; not property valuation, Hyperco financing or DayOne capital.

Parties & sources

Hyperco Oy (Other) · TikTok (Sponsor)

Sources (1)

Site & development

Location

Actual

Koria / Hiivuri, Kouvola

Source

Development partner

Actual

DayOne

Source

Main construction start

Actual

Late October 2025

Koria first data-center facility · Phase

Source

Building area

Reported rounded

28,000 square metres

Koria first data-center facility · Phase

Source

Contractor completion target

Forecast

May 2027

Kouvola customer delivery · Phase

Conflicting public evidence

Source

Site capacity

Proposal

Undisclosed

Source

Additional project facts

Current status

Actual

Under construction

Source

Developer

Actual

Hyperco

Source

Principal user

Actual

TikTok

Source

Foundation stone

Actual

Laid 2025-09-11

Koria first data-center facility · Phase

Source

Tiktok operation target

Forecast

End of 2026

Kouvola customer delivery · Phase

Conflicting public evidence

Source

Data security program

Actual

TikTok Project Clover

Source

Infrastructure & permits

Technical details (2)
Electric grid

Under construction

No authoritative numeric capacity assigned to the first facility.

Electric grid

Reported context

281 MW

Combined Lahti and Kouvola headline; no arithmetic allocation to either site.

Building · Documented

First Koria data center facility

City of Kouvola

Sep 11, 2025

Sources (2)

Public-source research. Plans may change. See Evidence for sources and qualifications.