Cartis diligence evidence schedule
DayOne–Hyperco Kouvola Data Center
PRJ-0021 · Site · Kouvola / Koria / Hiivuri, Finland
Captured 2026-09-06T04:12:48.480Z · Record last updated 2026-08-22
SHA-256: 1be19216f7b3cc31a91ecb87cdaeae039714f6884e6f6855298c2bbe596b51a2
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Scope and capacity
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.
Headline: —
Numbers refer to their stated physical boundaries and are not added together. Source dates, claim dates and record updates have different meanings. Missing dates and locators are not inferred.
Claims and exhibit sources
Current Status · Under construction
actual · DayOne–Hyperco Kouvola Data Center (project)
Claim 2291 · Review: Approved · Claim date: Not published
- YIT selected as main contractor for Kouvola data centre project
YIT Corporation · Document date: 2025-10-20 · Corroborating
https://www.yitgroup.com/en/news-repository/investor-news/yit-selected-as-main-contractor-for-kouvola-data-centre-project - Kouvolan datakeskuksen peruskivi muurattiin
City of Kouvola / Hyperco · Document date: 2025-09-11 · Primary
https://www.kouvola.fi/ajankohtaiset/kouvolan-datakeskuksen-peruskivi-muurattiin-suomi-on-maailman-paras-koti-datalle/
Location · Koria / Hiivuri, Kouvola
actual · DayOne–Hyperco Kouvola Data Center (project)
Claim 2292 · Review: Approved · Claim date: Not published
- Kouvolan datakeskuksen peruskivi muurattiin
City of Kouvola / Hyperco · Document date: 2025-09-11 · Corroborating
https://www.kouvola.fi/ajankohtaiset/kouvolan-datakeskuksen-peruskivi-muurattiin-suomi-on-maailman-paras-koti-datalle/ - Hyperco rakennuttaa uuden datakeskuksen Kouvolaan – pääkäyttäjäksi tulee TikTok
City of Kouvola · Document date: 2025-05-06 · Primary
https://www.kouvola.fi/ajankohtaiset/hyperco-rakennuttaa-uuden-datakeskuksen-kouvolaan-paakayttajaksi-tulee-tiktok/
Developer · Hyperco
actual · DayOne–Hyperco Kouvola Data Center (project)
Claim 2293 · Review: Approved · Claim date: Not published
- Project Clover: €1 Billion Investment in Finland for New Data Center
TikTok · Document date: 2025-05-06 · Primary
https://newsroom.tiktok.com/en-eu/finlanddatacenter - Hyperco rakennuttaa uuden datakeskuksen Kouvolaan – pääkäyttäjäksi tulee TikTok
City of Kouvola · Document date: 2025-05-06 · Corroborating
https://www.kouvola.fi/ajankohtaiset/hyperco-rakennuttaa-uuden-datakeskuksen-kouvolaan-paakayttajaksi-tulee-tiktok/
Development Partner · DayOne
actual · DayOne–Hyperco Kouvola Data Center (project)
Claim 2294 · Review: Approved · Claim date: Not published
- Kouvolan datakeskuksen peruskivi muurattiin
City of Kouvola / Hyperco · Document date: 2025-09-11 · Primary
https://www.kouvola.fi/ajankohtaiset/kouvolan-datakeskuksen-peruskivi-muurattiin-suomi-on-maailman-paras-koti-datalle/ - Finland Data Center — Lahti & Kouvola
DayOne Data Centers · Document date: Not published · Corroborating
https://dayonedc.com/market/finland
Principal User · TikTok
actual · DayOne–Hyperco Kouvola Data Center (project)
Claim 2295 · Review: Approved · Claim date: 2025-05-06T00:00:00+00:00
- Project Clover: €1 Billion Investment in Finland for New Data Center
TikTok · Document date: 2025-05-06 · Primary
https://newsroom.tiktok.com/en-eu/finlanddatacenter - Hyperco rakennuttaa uuden datakeskuksen Kouvolaan – pääkäyttäjäksi tulee TikTok
City of Kouvola · Document date: 2025-05-06 · Corroborating
https://www.kouvola.fi/ajankohtaiset/hyperco-rakennuttaa-uuden-datakeskuksen-kouvolaan-paakayttajaksi-tulee-tiktok/
Tiktok Announced Investment · €1,000,000,000
transaction scope · DayOne–Hyperco Kouvola Data Center (project)
Claim 2296 · Review: Approved · Claim date: 2025-05-06T00:00:00+00:00
- Project Clover: €1 Billion Investment in Finland for New Data Center
TikTok · Document date: 2025-05-06 · Primary
https://newsroom.tiktok.com/en-eu/finlanddatacenter
Foundation Stone · Laid 2025-09-11
actual · Koria first data-center facility (phase)
Claim 2297 · Review: Approved · Claim date: 2025-09-11T00:00:00+00:00
- Kouvolan datakeskuksen peruskivi muurattiin
City of Kouvola / Hyperco · Document date: 2025-09-11 · Primary
https://www.kouvola.fi/ajankohtaiset/kouvolan-datakeskuksen-peruskivi-muurattiin-suomi-on-maailman-paras-koti-datalle/
Main Construction Start · Late October 2025
actual · Koria first data-center facility (phase)
Claim 2298 · Review: Approved · Claim date: 2025-10-20T00:00:00+00:00
- YIT selected as main contractor for Kouvola data centre project
YIT Corporation · Document date: 2025-10-20 · Primary
https://www.yitgroup.com/en/news-repository/investor-news/yit-selected-as-main-contractor-for-kouvola-data-centre-project
Building Area · 28,000 square metres
reported rounded · Koria first data-center facility (phase)
Claim 2299 · Review: Approved · Claim date: 2025-10-20T00:00:00+00:00
- YIT selected as main contractor for Kouvola data centre project
YIT Corporation · Document date: 2025-10-20 · Primary
https://www.yitgroup.com/en/news-repository/investor-news/yit-selected-as-main-contractor-for-kouvola-data-centre-project
Tiktok Operation Target · End of 2026
Planned / design or future potential · Kouvola customer delivery (phase)
Claim 2300 · Review: Approved · Claim date: 2026-04-07T00:00:00+00:00
Conflicting public evidence is preserved.
- TikTok announces additional €1 Billion investment in Finland
TikTok · Document date: 2026-04-07 · Primary
https://newsroom.tiktok.com/tiktok-announces-additional-1-billion-investment-in-finland?lang=en-150
Contractor Completion Target · May 2027
Planned / design or future potential · Kouvola customer delivery (phase)
Claim 2301 · Review: Approved · Claim date: 2025-10-20T00:00:00+00:00
Conflicting public evidence is preserved.
- YIT selected as main contractor for Kouvola data centre project
YIT Corporation · Document date: 2025-10-20 · Primary
https://www.yitgroup.com/en/news-repository/investor-news/yit-selected-as-main-contractor-for-kouvola-data-centre-project
Site Capacity · Undisclosed
proposal · DayOne–Hyperco Kouvola Data Center (project)
Claim 2303 · Review: Approved · Claim date: Not published
- YIT selected as main contractor for Kouvola data centre project
YIT Corporation · Document date: 2025-10-20 · Corroborating
https://www.yitgroup.com/en/news-repository/investor-news/yit-selected-as-main-contractor-for-kouvola-data-centre-project - Project Clover: €1 Billion Investment in Finland for New Data Center
TikTok · Document date: 2025-05-06 · Primary
https://newsroom.tiktok.com/en-eu/finlanddatacenter - Finland Data Center — Lahti & Kouvola
DayOne Data Centers · Document date: Not published · Corroborating
https://dayonedc.com/market/finland
Data Security Program · TikTok Project Clover
actual · DayOne–Hyperco Kouvola Data Center (project)
Claim 2305 · Review: Approved · Claim date: 2025-05-06T00:00:00+00:00
- Project Clover: €1 Billion Investment in Finland for New Data Center
TikTok · Document date: 2025-05-06 · Primary
https://newsroom.tiktok.com/en-eu/finlanddatacenter
Counterparties and capital
City of Kouvola · Government Authority · CMP-0090
DayOne Data Centers · Developer · CMP-0071
Hyperco Fin HoldCo 1 Oy · Owner · CMP-0089
Hyperco Oy · Developer · CMP-0088
TikTok · Tenant · CMP-0072
YIT Corporation · Contractor · CMP-0091
€1,000,000,000 · 2025-05-06
TikTok Project Clover investment; not property valuation, Hyperco financing or DayOne capital.
Hyperco Oy (Other) · TikTok (Sponsor)
Financing record 20; claim-specific source links appear in the exhibit sources where published.
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