SECURITIES AND EXCHANGE COMMISSIONSEC FORM 17-C

CURRENT REPORT UNDER SECTION 17
OF THE SECURITIES REGULATION CODE
AND SRC RULE 17.2(c) THEREUNDER

1. Date of Report (Date of earliest event reported)

Oct 13, 2026

2. SEC Identification Number

1746

3. BIR Tax Identification No.

000-126-853-000

4. Exact name of issuer as specified in its charter

STI Education Systems Holdings, Inc.

5. Province, country or other jurisdiction of incorporation

Philippines

6. Industry Classification Code(SEC Use Only)

7. Address of principal office

7th Floor, STI Holdings Center, 6764 Ayala Avenue, Makati City Postal Code 1226

8. Issuer's telephone number, including area code

0288449553

9. Former name or former address, if changed since last report

-

10. Securities registered pursuant to Sections 8 and 12 of the SRC or Sections 4 and 8 of the RSA

Title of Each Class	Number of Shares of Common Stock Outstanding and Amount of Debt Outstanding
Common	9,904,806,924

11. Indicate the item numbers reported herein

Item 9

The Exchange does not warrant and holds no responsibility for the veracity of the facts and representations contained in all corporate disclosures, including financial reports. All data contained herein are prepared and submitted by the disclosing party to the Exchange, and are disseminated solely for purposes of information. Any questions on the data contained herein should be addressed directly to the Corporate Information Officer of the disclosing party.

STI Education Systems Holdings, Inc.STI

PSE Disclosure Form 7-1 - Notice of Annual or Special Stockholders' Meeting References: SRC Rule 17 (SEC Form 17-C) and
Sections 7 and 4.4 of the Revised Disclosure Rules

Subject of the Disclosure
2026 Annual Stockholders' Meeting of STI Education Systems Holdings, Inc.
Background/Description of the Disclosure
At the meeting of the Board of Directors of STI Education Systems Holdings, Inc. (the “Company”) held today, 13 October 2026, the Board of Directors approved the holding of the Annual Stockholders’ Meeting of the Company on 17 December 2026 at 2:30 P.M. via remote communication through Microsoft Teams. Furthermore, the Corporation’s stockholders of record as of 4 November 2026 shall be entitled to notice of and to vote at the Annual Stockholders’ Meeting.

Type of Meeting

• Annual
• Special

Date of Approval by Board of Directors	Oct 13, 2026
Date of Stockholders' Meeting	Dec 17, 2026
Time	2:30 P.M.
Venue	via remote communication through Microsoft Teams
Record Date	Nov 4, 2026
Agenda	1. Call to Order 2. Certification of Notice and Quorum 3. Approval of the Minutes of the Annual Stockholders’ Meeting held on 12 December 2025 4. Management Report 5. Approval of Parent and Consolidated Audited Financial Statements of the Company as at and for the fiscal year ended 30 June 2026 6. Ratification of all legal acts, resolutions and proceedings of the Board of Directors and of Management, done in ordinary course of business since the 12 December 2025 Annual Stockholders’ Meeting up to 17 December 2026 7. Election of Directors 8. Appointment of External Auditor 9. Other Matters 10. Adjournment

Inclusive Dates of Closing of Stock Transfer Books

Start Date	N/A
End Date	N/A

Other Relevant Information
The last day to submit nominations for the Board of Directors of the Company is on 23 October 2026. The Corporate Governance Committee shall pre-screen the qualifications and prepare a Final List of all Candidates for directors. Only nominees whose names appear on the Final List of Candidates shall be eligible for election as directors.