Sansan, Inc. (“the Company”) has resolved at the Board of Directors’ meeting held on July 24, 2025, to carry out absorption-type merger (simplified/short-form merger) of Diamond Corporate Data Services, Inc. (“DCD”), its consolidated subsidiary, effective on October 1, 2025. We hereby announce the details as follows. As this is a simplified absorption-type merger of a wholly owned subsidiary, disclosure items and details are partially omitted.

1. Purpose of the Absorption-Type Merger

The merger aims at concentrating the Group’s business resources for further improvement of services and efficient business operations. For the merger, the Company plans to acquire additional shares of DCD on July 31, 2025, and make it a wholly owned subsidiary.

2. Overview of the Merger

（1）Merger schedule

（2）Merger method
It is an absorption-type merger in which the Company is the surviving company and DCD is the dissolving company.

（3）Allocation related to the merger
DCD will become the Company’s wholly owned subsidiary on July 31, 2025, and there will be no issuance of new shares or allocation of other cash, etc. in the merger.

（4）Treatment of share acquisition rights and bonds with share acquisition rights of the dissolving company
Not applicable.

3. Overview of Companies Involved in the Merger (As of May 31, 2025)

4. Situation After the Merger

There will be no change to the Company’s trade name, head office location, representative, business description, capital, and fiscal year end due to the merger.

5. Impact on the Financial Results

The impact of the merger on the consolidated financial results is immaterial.