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ReYuu Japan Inc.

Category: AI in Supply Chain / Logistics

Japan's leading IT reuse company (smartphones, tablets, PCs) pivoting into AI infrastructure — GPU server secondary market, liquid cooling, and AI data center lifecycle services. ReYuu Japan Inc. was founded in 1988. The company is led by Takafumi Shigetomi (重富 崇史). Based in Osaka / Tokyo, Japan. Team size: 51-200. Total funding raised: $1.03M. Latest round: Strategic Investment. Key investors include Seacastle Singapore Pte. Ltd.; AI Fusion Capital Group (parent); Showcase Inc.; Universal Digital Inc.; Kanematsu Communications.

Founded
1988
Headquarters
Osaka / Tokyo, Japan
Team size
51-200
Total funding
$1.03M

Value proposition

ReYuu Japan is a Tokyo Stock Exchange-listed IT reuse company that buys, refurbishes, and resells used mobile devices (smartphones, tablets, PCs). In 2026, it launched an AI infrastructure business leveraging its IT procurement/refurbishment expertise to enter the GPU server secondary market, AI data center lifecycle services, and liquid cooling solutions — partnering with Super Micro and KAYTUS JAPAN.

Products and solutions

1) Reuse Mobile — buy/sell/rental of refurbished smartphones, tablets, PCs (iPhone, Galaxy, Xperia, iPad, MacBook); 2) Integrated Subscription Service — mobile devices bundled with SaaS; 3) Online Store (ReYuu Store, Amazon, Rakuten, Mercari Shops); 4) Corporate Rental Service — mobile devices + SIM; 5) AI Infrastructure Business (NEW 2026) — GPU server secondary market, AI server procurement/sales, liquid cooling solutions, AI data center lifecycle management

Unique value

Only publicly listed Japanese company bridging the IT reuse market with the AI infrastructure secondary market — combining 35+ years of IT device procurement/refurbishment expertise with new AI server lifecycle services (introduction, operation, upgrade, redistribution).

Target customer

MVNO operators, mobile carriers, telecom agents, corporate enterprises (B2B wholesale), general consumers (B2C via online stores), and AI data center operators (new AI infra segment)

Industries served

Telecommunications, IT/Device Reuse, E-commerce, AI Infrastructure / Data Centers

Technology advantage

35+ years of IT device procurement, refurbishment, quality control, and redistribution expertise; ISO/IEC 27001 certified Mobile Refurbish Center; First certified "Reuse Mobile Business Operator" in Japan (RMJ); AI-powered visual inspection system for device grading; Established global supply chain (Hong Kong, Dubai); Listed on TSE providing capital markets access.

How they differentiate

Unlike general reuse retailers, ReYuu Japan is a TSE-listed company with a B2B wholesale focus (MVNOs, carriers, enterprises) and a newly launched AI infrastructure division targeting the GPU server secondary market — a unique hybrid of IT reuse + AI data center lifecycle services not offered by traditional Japanese reuse competitors.

Main competitors

Sofmap (リユースモバイル); Book Off Corporation (ブックオフ); Inversenet (インバースネット)

Key partnerships

Super Micro Computer, Inc. (MOU for AI infrastructure, May 2026); KAYTUS JAPAN (MOU for AI server/liquid cooling, May 2026); Kanematsu Communications (business alliance on reuse mobile, 2019); Showcase Inc. (capital/business alliance, 2022); AI Fusion Capital Group (parent company since Dec 2024); Seacastle Singapore Pte. Ltd. (major shareholder, 33.21% stake); Universal Digital Inc. (strategic investment, Oct 2025)

Notable customers

Amazon Japan; AEON Retail; Softbank Corp.; Rakuten Group; Yahoo Japan; Internet Initiative Japan (IIJ); OPTAGE; Kanematsu Communications; QTnet; Bell-Park; ZOA Corporation

Major milestones

1988: Founded as Nippon Telephone Inc.; 2005: Listed on JASDAQ (TSE); 2008: Entered used mobile phone business (ecoTAN brand); 2017: Co-founded Reuse Mobile Japan industry association; 2022: Capital alliance with Showcase Inc.; 2024: Rebranded to ReYuu Japan; 2024: AI Fusion Capital Group becomes parent; 2025: Seacastle Singapore acquires 33.21% stake; 2025: Universal Digital strategic investment; 2026-03: Launched AI Strategy Office & AI Infrastructure Business; 2026-05: MOU with Super Micro; 2026-05: MOU with KAYTUS JAPAN

Growth metrics

FY2025 (Oct 2025) revenue: ¥6.259B (~$41.7M), +32.3% YoY; Market cap: ~¥2.38B (~$15.9M); TSE Standard listed (9425)

Market positioning

Mid-cap listed IT reuse company (FY2025 revenue ¥6.26B / ~$42M) pivoting into the fast-growing AI infrastructure secondary market in Japan. Positioned as a niche player bridging IT asset disposition (ITAD) with AI compute lifecycle management.

Geographic focus

Japan (primary), with global procurement/sales via Hong Kong and Dubai subsidiaries

Patents and IP

Trademark: "サイバーポート" (Cyber Port) registered 1999; Privacy Mark certified; ISO/IEC 27001 certified

About Takafumi Shigetomi (重富 崇史)

Ex-Nippon Telephone Inc. Executive Officer of Finance and Accounting (2018-2025); General Manager of Finance and Accounting (2017-2025); President/Director of HKNT CO., LIMITED (2015-2025); General Manager of Product Planning (2016-2017); Manager Global Sales (2013-2014). Education: Sophia University (上智大学).

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