Regarding Certain Media Reports Concerning Our Company | SAKURA internet Inc. (3778) timely disclosure

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Consideration initiated for the joint development of a solution enabling the use of SAKURA internet Inc.'s AI computing infrastructure through Microsoft Azure

Subject Entity

SAKURA internet Inc. (filing company), Microsoft Japan Co., Ltd.

Target Locations / Products

Microsoft Azure, SAKURA internet Inc.'s AI computing infrastructure, and the solution under consideration for joint development

Occurrence3 April 2026 (the date on which the start of the collaboration discussions was announced)

This disclosure04/03/2026

Cause

To collaborate with the aim of expanding AI infrastructure options in Japan

Outlook

The two companies will continue discussions and consideration, with the aim of building an environment in which customers in Japan can use AI infrastructure flexibly. The form of service provision and technical specifications may change in the future.

Planned follow-up disclosure

If any facts requiring disclosure arise in the future, they will be announced promptly.

Event that occurred
Item	Details
Event name	Consideration initiated for the joint development of a solution enabling the use of SAKURA internet Inc.'s AI computing infrastructure through Microsoft Azure
Date of occurrence	3 April 2026 (the date on which the start of the collaboration discussions was announced)
Subject Entity	SAKURA internet Inc. (filing company), Microsoft Japan Co., Ltd.
Target Locations / Products	Microsoft Azure, SAKURA internet Inc.'s AI computing infrastructure, and the solution under consideration for joint development
Cause	To collaborate with the aim of expanding AI infrastructure options in Japan
Outlook	The two companies will continue discussions and consideration, with the aim of building an environment in which customers in Japan can use AI infrastructure flexibly. The form of service provision and technical specifications may change in the future.
Planned follow-up disclosure	If any facts requiring disclosure arise in the future, they will be announced promptly.

Items this document does not state (18)

Date recognized / date notice receivedAmount of Impact on Business PerformanceAccounting period in which recognizedImpact on Earnings ForecastType of litigation or proceedingCourt or authorityPlaintiffDefendantDate of filing / date of actionClaim amount / surcharge amountAmount of receivables at risk of non-collection or delayed collectionSuspended operationsScheduled resumption dateInvestigation structureMeasures to prevent recurrenceDirectors' and officers' liabilityVoting rights ownership percentage before the changeVoting rights ownership percentage after the change

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The reasons the company gives

The company's own explanation, not something inferred from the numbers.

To expand the range of AI infrastructure options available in Japan.

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