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Cartis diligence evidence schedule

STACK MIL01 Siziano Campus

PRJ-0023 · Site · Siziano / Milan market, Italy

Record last updated Oct 28, 2026

Scope and capacity

STACK's current MIL01 campus in Siziano comprises three operating buildings totaling 27 MW. Older STACK and SUPERNAP releases describe broader Milan/Siziano scopes and expansion potential, so those figures are not added to the current MIL01 record.

Headline: 27 MW Planned critical IT

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.

Operational status · Operating

Actual · STACK MIL01 Siziano Campus (Project)

Claim 3053 · Recorded claim type: Actual · Review: Approved · Claim date: Not stated

  1. MIL01: A sustainable data centre powerhouse

    Data Centre Magazine · Document date: Nov 30, 2023 · Corroborating

    Source reference: SRC-6700 · News report · Recorded authority: Secondary

    Source URL

    https://datacentremagazine.com/articles/mil01-a-sustainable-data-centre-powerhouse

  2. MIL01 Milan data center campus

    STACK Infrastructure · Document date: Not stated · Primary

    Source reference: SRC-0163 · Fact sheet · Recorded authority: Party primary

    Source URL

    https://www.stackinfra.com/locations/emea/milan/mil01/

Campus capacity · 27 MW

Actual · STACK MIL01 Siziano Campus (Project)

Claim 3054 · Recorded claim type: Actual · Review: Approved · Claim date: Not stated

Headline treatment: Selected headline

  1. MIL01 Milan data center campus

    STACK Infrastructure · Document date: Not stated · Primary

    Source reference: SRC-0163 · Fact sheet · Recorded authority: Party primary

    Source URL

    https://www.stackinfra.com/locations/emea/milan/mil01/

Land area · 25 acres

Actual · STACK MIL01 Siziano Campus (Project)

Claim 3055 · Recorded claim type: Actual · Review: Approved · Claim date: Not stated

  1. MIL01 Milan data center campus

    STACK Infrastructure · Document date: Not stated · Primary

    Source reference: SRC-0163 · Fact sheet · Recorded authority: Party primary

    Source URL

    https://www.stackinfra.com/locations/emea/milan/mil01/

Building count · 3 buildings

Actual · STACK MIL01 Siziano Campus (Project)

Claim 3056 · Recorded claim type: Actual · Review: Approved · Claim date: Not stated

  1. MIL01 Milan data center campus

    STACK Infrastructure · Document date: Not stated · Primary

    Source reference: SRC-0163 · Fact sheet · Recorded authority: Party primary

    Source URL

    https://www.stackinfra.com/locations/emea/milan/mil01/

Building capacity · 12 MW

Actual · MIL01A (Phase)

Claim 3057 · Recorded claim type: Actual · Review: Approved · Claim date: Not stated

Headline treatment: Phase scope; not a whole-site figure

  1. MIL01 Milan data center campus

    STACK Infrastructure · Document date: Not stated · Primary

    Source reference: SRC-0163 · Fact sheet · Recorded authority: Party primary

    Source URL

    https://www.stackinfra.com/locations/emea/milan/mil01/

Building capacity · 12 MW

Actual · MIL01B (Phase)

Claim 3058 · Recorded claim type: Actual · Review: Approved · Claim date: Not stated

Headline treatment: Phase scope; not a whole-site figure

  1. MIL01 Milan data center campus

    STACK Infrastructure · Document date: Not stated · Primary

    Source reference: SRC-0163 · Fact sheet · Recorded authority: Party primary

    Source URL

    https://www.stackinfra.com/locations/emea/milan/mil01/

Building capacity · 3 MW

Actual · MIL01C (Phase)

Claim 3059 · Recorded claim type: Actual · Review: Approved · Claim date: Not stated

Headline treatment: Phase scope; not a whole-site figure

  1. MIL01 Milan data center campus

    STACK Infrastructure · Document date: Not stated · Primary

    Source reference: SRC-0163 · Fact sheet · Recorded authority: Party primary

    Source URL

    https://www.stackinfra.com/locations/emea/milan/mil01/

Dedicated high voltage substation · Present

Actual · STACK MIL01 Siziano Campus (Project)

Claim 3063 · Recorded claim type: Actual · Review: Approved · Claim date: Not stated

  1. MIL01 Milan data center campus

    STACK Infrastructure · Document date: Not stated · Primary

    Source reference: SRC-0163 · Fact sheet · Recorded authority: Party primary

    Source URL

    https://www.stackinfra.com/locations/emea/milan/mil01/

Energy claim · 100% Certified green energy

Actual · STACK MIL01 Siziano Campus (Project)

Claim 3066 · Recorded claim type: Actual · Review: Approved · Claim date: Nov 23, 2021

  1. STACK Infrastructure delivers hyperscale data center on Milan campus

    STACK Infrastructure · Document date: Nov 23, 2021 · Primary

    Source reference: SRC-0165 · Company announcement · Recorded authority: Party primary

    Source URL

    https://www.stackinfra.com/about/news-press/press-releases/stack-infrastructure-delivers-hyperscale-data-center-on-milan-campus/

Counterparties and capital

Comune di Siziano · Government authority · CMP-0104

EPI · Contractor · CMP-0108

IPI Partners · Investor · CMP-0103

Milan Internet Exchange (MIX) · Utility provider · CMP-0107

Sirti · Contractor · CMP-0106

STACK Infrastructure · Operator · CMP-0102

Terna · Utility provider · CMP-0105

Debt financing

$1,200,000,000 · Apr 9, 2024

Benefits STACK Milan campuses; no MIL01-only allocation disclosed.

STACK Infrastructure (Borrower)

Sources (1)

Financing record 24; claim-specific source links appear in the exhibit sources where published.

This schedule captures public Cartis research. It is not a title, lien or legal-opinion report. Document page/section locators and claim review timestamps are included only when published; this version has no separate locator or claim-review-time feed.