• ¥39.7 billion (approx. $260 million) green financing secured to fund STACK’s 36MW Tokyo campus.
• Facility fully underwritten by Natixis CIB and Société Générale, reflecting institutional confidence in APAC data center growth.
• Project integrates AI-ready and sustainability features, reinforcing Japan’s position in Asia’s digital infrastructure market.

Tokyo’s Data Infrastructure Enters a New Phase

STACK Infrastructure has secured ¥39.7 billion in green financing to develop its 36MW TKY01 campus in Inzai, Greater Tokyo, expanding Japan’s capacity to host energy-efficient, AI-driven digital operations. The financing, fully underwritten by Natixis CIB and Société Générale, will fund both the initial 18MW phase set for delivery in 2026 and a second 18MW expansion expected in 2027.

The deal marks one of the largest green financing facilities in Japan’s data center sector this year and attracted strong participation from both Japanese and international lenders — a sign of continued investor appetite for sustainable digital infrastructure in Asia.

Strategic Investment in Japan’s Digital Core

Inzai, situated northeast of Tokyo, has become a critical hub for hyperscale and enterprise data center development due to its strong fiber connectivity, power reliability, and proximity to major urban and cloud networks. STACK’s 5.7-acre TKY01 campus is designed with advanced resiliency, energy efficiency, and AI-capable configurations to meet escalating regional demand for cloud and machine learning workloads.

“With Tokyo among Asia’s most important digital infrastructure markets, TKY01 positions STACK to meet demand in one of the region’s most supply-constrained environments,” the company said in a statement. Once completed, the campus will provide 36MW of scalable capacity — a key addition to Japan’s constrained colocation and hyperscale supply.

Financial Backing and ESG Credentials

Natixis CIB and Société Générale not only acted as underwriters but also served as green loan coordinators, ensuring that the financing aligns with sustainability principles under Japan’s Green Loan Guidelines and international ESG frameworks. The facility will support energy-efficient construction, renewable integration, and lower lifecycle carbon intensity across STACK’s regional portfolio.

“This transaction underscores STACK’s ability to align with long-term capital partners and deliver sustainable, scalable capacity in Japan,” said Preet Gona, Chief Executive Officer of STACK APAC. “As demand for mission-critical digital infrastructure continues to accelerate across the region, this financing ensures we can expand with scale, speed, and certainty.”

Scaling Sustainable Capacity Across Asia Pacific

The Tokyo project is part of STACK’s broader Asia Pacific growth strategy, which includes an 80MW hyperscale campus under development in Osaka (KIX01) and large-scale projects in Australia and Malaysia. Together, these investments form a regional network of AI- and cloud-ready facilities designed to meet the needs of technology clients operating across multiple jurisdictions.

STACK’s expansion comes amid rising ESG scrutiny in data center development. Operators are increasingly expected to disclose emissions intensity, energy sourcing, and water efficiency metrics. By embedding green finance structures into new projects, STACK is aligning its development pipeline with global sustainability standards and investor expectations.

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Investor and Policy Context

Japan’s digital infrastructure demand continues to surge as cloud providers and AI companies race to secure capacity ahead of energy and regulatory constraints. The Ministry of Economy, Trade and Industry (METI) has prioritized data centers within its Green Transformation (GX) policy, encouraging foreign investment in energy-efficient facilities and renewable-backed grids.

Green loan frameworks like STACK’s are becoming a preferred financing tool for infrastructure developers in the region, offering access to lower-cost capital while demonstrating ESG accountability. They also align with the broader regional trend — seen across Singapore, South Korea, and Australia — of integrating sustainability-linked metrics into project financing.

Global Relevance

The deal positions STACK as a significant player in Asia’s accelerating green data infrastructure market, bridging financial and environmental priorities across jurisdictions. As the global AI boom drives exponential computing demand, the alignment of large-scale infrastructure with ESG criteria is emerging as both a commercial and policy imperative.

For investors, the transaction highlights the increasing maturity of green financing mechanisms within the digital economy — and Japan’s growing role as a testing ground for sustainable infrastructure capital across the Asia-Pacific region.

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