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 5, 2026

2. SEC Identification Number

11163

3. BIR Tax Identification No.

000-471-497-000

4. Exact name of issuer as specified in its charter

Philcomsat Holdings Corporation

5. Province, country or other jurisdiction of incorporation

Philippines

6. Industry Classification Code(SEC Use Only)

7. Address of principal office

12F Telecom Plaza, 316 Sen. Gil Puyat Avenue, Makati City Postal Code 1200

8. Issuer's telephone number, including area code

0288158406

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

NA

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	996,391,254

11. Indicate the item numbers reported herein

3(b)

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.

Philcomsat Holdings CorporationPHC

PSE Disclosure Form 4-9 - Change in External Auditor References: SRC Rule 17 (SEC Form 17-C) and
Section 4.4 of the Revised Disclosure Rules

Subject of the Disclosure
Change in External Auditor
Background/Description of the Disclosure
Change in External Auditor

Date of Approval by Board of Directors	Oct 5, 2026
Date of Approval by Stockholders	TBA
Previous External Auditor	Isla Lipana & Co.
New External Auditor	KPMG R.G. Manabat & Co.
Effective Date of Engagement of New External Auditor	TBA

Rationale for Replacement
The Board of Directors resolved to engage KPMG R.G. Manabat & Co. as External Auditor for the fiscal year 2026 in compliance with SEC Rule 68 and the Code of Corporate Governance which prescribe the rotation of the External Auditors after five (5) years. The appointment of the new External Auditor will be submitted for confirmation and ratification by the stockholders in the upcoming Annual Stockholders’ Meeting on 23 November 2026.
Other Relevant Information
Please see attached SEC Form 17C filed with the Securities and Exchange Commission via eFast.