Sansan, Inc. (the “Company”) hereby announces that the Audit and Supervisory Committee, at its meeting held on July 21, 2026, resolved to change the certified public accountants, who perform the audit certification under Article 193-2, Paragraphs 1 and 2 of the Financial Instruments and Exchange Act, and that the Board of Directors, at its meeting held on the same day, resolved to submit the “Appointment of Accounting Auditor” to the 19th Annual General Meeting of Shareholders scheduled to be held on August 20, 2026.

1. Scheduled Date of Change

August 20, 2026 (Scheduled date of the 19th Annual General Meeting of Shareholders)

2. Overview of the Certified Public Accountants to Be Appointed or Retired

(1) Overview of the certified public accountants to be appointed

(2) Overview of the certified public accountants to be retired

3. Reasons for Selecting the Candidate for Certified Public Accountants Described in 2(1)

Considering the number of years the current accounting auditor has been in charge of the audit, the Company examined proposals from multiple audit firms, including the current accounting auditor. As a result, the Company determined that Ernst & Young ShinNihon LLC is suitable as our accounting auditor, as the Company expects audits from a new perspective, and the Company has comprehensively considered the firm’s expertise, independence, quality control system, and scale.

4. Date of Appointment of the Retiring Certified Public Accountants

August 26, 2014

5. Opinions, etc. in Audit Reports, etc. Prepared by the Retiring Certified Public Accountants in the Last Three Years

Not applicable.

6. Reasons and Background for the Change

The term of office of the accounting auditor, KPMG AZSA LLC, will expire at the conclusion of the 19th Annual General Meeting of Shareholders scheduled to be held on August 20, 2026. Although the accounting auditor has a sufficient system to ensure that accounting audits are conducted appropriately and properly, in light of the number of years of continuous audits, the Company considered multiple audit firms, including the current accounting auditor. As a result, for the reasons stated in 3 above, the Company has selected Ernst & Young ShinNihon LLC as a candidate.

7. Opinions on the Reasons and Background for the Change in 6

(1)Opinions of the retiring certified public accountant, etc.
The Company has received a response stating that there are no particular opinions.

(2)Opinions of the Audit and Supervisory Committee
The Company has determined that it is appropriate.