C05027-2026

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)

Jul 2, 2026

2. SEC Identification Number

39274

3. BIR Tax Identification No.

000-506-020-000

4. Exact name of issuer as specified in its charter

ACEN CORPORATION

5. Province, country or other jurisdiction of incorporation

Makati City, Philippines

6. Industry Classification Code(SEC Use Only)

7. Address of principal office

35th Floor, Ayala Triangle Gardens Tower 2, Paseo de Roxas corner Makati Avenue, Makati City Postal Code 1226

8. Issuer's telephone number, including area code

(027) 730 6300

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

N/A

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 Shares	39,951,435,064
Series A Preferred Shares	8,341,500
Series B Preferred Shares	16,658,500

11. Indicate the item numbers reported herein

Other Matters

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.

ACEN CORPORATIONACEN

PSE Disclosure Form 4-30 - Material Information/Transactions References: SRC Rule 17 (SEC Form 17-C) and
Sections 4.1 and 4.4 of the Revised Disclosure Rules

Subject of the Disclosure

Alaminos BESS Penalty

Background/Description of the Disclosure

Alaminos BESS Inc. (ABI), a subsidiary of ACEN CORPORATION, received a notice on 1 July 2026 from the Philippine Electricity Market Corporation (PEMC) imposing a Php 78,713.16 financial penalty for non-compliance with the Reserve Conformance Standards (RCS) for the April 2026 billing period. The penalty was imposed under the Ancillary Services Monitoring Manual, which sets the standards and parameters for assessing Ancillary Service Providers' (ASPs) compliance with their reserve obligations.

Based on PEMC's assessment, the non-compliance involved fifty-one (51) intervals beginning March 26, 2026, during which ABI did not meet certain RCS requirements for its Regulating Reserve and Contingency Reserve services. The resulting penalty amounted to Php 78,713.16. The non-compliance was attributable to operational limitations encountered during the relevant intervals.

ABI will settle the amount in accordance with PEMC's billing and settlement procedures.

ABI remains committed to complying with applicable market rules and supporting the reliable operation of the grid.

Other Relevant Information

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Filed on behalf by:

Name	Candy Dacanay-Datuon
Designation	Assistant Vice President