C01019-2026

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)
Feb 13, 2026
2. SEC Identification Number
A1998 18260
3. BIR Tax Identification No.
202 464 633
4. Exact name of issuer as specified in its charter
FIRST GEN CORPORATION
5. Province, country or other jurisdiction of incorporation
Philippines
6. Industry Classification Code(SEC Use Only)
7. Address of principal office
6F Rockwell Business Center Tower 3 Ortigas Avenue Pasig City 1604 Postal Code 1604
8. Issuer's telephone number, including area code
34496400
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 3,596,575,505
11. Indicate the item numbers reported herein
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.

First Gen CorporationFGEN

PSE Disclosure Form 5-1 - Substantial Acquisitions References: SRC Rule 17 (SEC Form 17-C) and
Section 4.4 and/or Section 5 of the Revised Disclosure Rules

Subject of the Disclosure

First Gen Corporation (First Gen) to acquire a 40% equity interest in the Pumped Storage Hydropower portfolio of Prime Infrastructure Capital, Inc. (Prime Infra), through their respective subsidiaries to be determined and agreed upon execution of the definitive agreements

Background/Description of the Disclosure

Current report on the execution of a Binding Heads of Terms Agreement (HOTA) for the acquisition by First Gen of a 40% equity interest in the Pumped Storage Hydropower portfolio of Prime Infra, through their respective subsidiaries to be determined and agreed upon execution of the definitive agreements

Date of Approval by Board of Directors Feb 13, 2026
Date of Approval by Stockholders TBA
Other Relevant Regulatory Agency, if applicable PCC
Date of Approval by Relevant Regulatory Agency TBA
Rationale for the transaction including the benefits which are expected to be accrued to the Issuer as a result of the transaction

Upon completion of their construction, the 2000MW Wawa and Pakil Pumped Storage Hydropower Projects will play a critical role in supporting the Philippines’ growing renewable energy capacity by providing grid stability and reliability, allowing for the seamless integration of renewable energy projects into the power system. First Gen’s investment in these projects strengthens its partnership with Prime Infra and crystallizes the shift of the company’s portfolio to renewable energy.

Description of the transaction including the timetable for implementation and related regulatory requirements, if any

Following the execution of the HOTA, the parties will proceed to carry out due diligence and, upon agreement of the parties, execute definitive agreements. The parties will likewise secure the necessary regulatory approval from the Philippine Competition Commission. Upon obtaining PCC approval and compliance/satisfaction with conditions precedent as may be agreed and indicated in the definitive agreements, the parties, through their respective subsidiaries, will execute the requisite documentation for the transfer of the underlying shares. Closing of the transaction is expected to occur within the year.

Identities of the parties to the transaction
Name Nature of Business Nature of any material relationship with the Issuer, their directors/officers or any of their affiliates
First Gen holding company Prime Infra and First Gen, through their subsidiaries, each own 60% and 40%, respectively, of the natural gas plants located in Batangas City
Prime Infra holding company Prime Infra and First Gen, through their subsidiaries, each own 60% and 40%, respectively, of the natural gas plants located in Batangas City
Prime Infrastructure, Inc. holding company Prime Infra and First Gen, through their subsidiaries, each own 60% and 40%, respectively, of the natural gas plants located in Batangas City
Prime Hydropower Energy, Inc. holding company Prime Infra and First Gen, through their subsidiaries, each own 60% and 40%, respectively, of the natural gas plants located in Batangas City
Terms and conditions of the transaction
The nature and amount of consideration (e.g. price per share, the aggregate amount)

As of the date of the HOTA, the parties have determined the transaction value to be PHP75B, of which PHP62.5B will be used to directly fund the construction and equity requirements of the projects, with the balance representing the consideration agreed by the parties for the shares of stock of Prime Hydropower Energy, Inc. (PHEI). Specific details of the consideration are to be determined in the definitive agreements.

Basis upon which the amount of consideration or value of the transaction was determined

As of the date of the HOTA, the parties have determined that of the PHP75 billion total transaction cost, PHP62.5 billion is estimated to be utilized for the construction and equity requirements of both Wawa and Pakil projects, with the balance representing the consideration agreed by the parties for the shares of stock of PHEI.

The number of shares to be acquired To be determined in the definitive agreements.
Ratio/percentage to total outstanding capital stock -
Terms of payment

To be determined in the definitive agreements.

Conditions precedent to closing of the transaction, if any

Other than PCC approval of the transaction, the other conditions precedent to the closing of the transaction are to be agreed and determined in the definitive agreements.

Description of the company subject of the transaction
Nature and business

As of the date of the HOTA, the parties have determined that holding company PHEI will be the entity which will own the projects.

Discussion of major projects and investments

600MW Wawa and 1400MW Pakil Pumped Storage Hydropower Projects

List of subsidiaries and affiliates, with percentage holdings
Name % Ownership
Trident Water Company, Inc. 0
Wastefuel Philippines, Inc. 0
Prime Integrated Waste Solutions, Inc. 0
WawaJVCo Inc. 0
Ahunan Power Inc. 0
PMJVCo Holdings, Inc. 0
Helios Energy Corporation 0
Terra Renewables Holdings Inc. 0
Prime Solar Solutions Corp. (Formerly Solar Tanauan Corporation) 0
Kalinaw Power, Inc. 0
Torre, Inc. 0
Prime Renewable Energy Holdings, Inc. 0
Prime Solar Energy Holdings, Inc. 0

Capital structure

Authorized capital stock
Type of Security Amount Number of Shares
common shares PHP100,000,000.00 1,000,000,000
Subscribed Shares
Type of Security Amount Number of Shares
common shares PHP1,000.00 10,000
Paid-Up Capital
Amount PHP1,000.00
Number of Shares 10,000
Issued Shares
Type of Security Amount Number of Shares
common shares PHP1,000.00 10,000
Outstanding Shares
Type of Security Amount Number of Shares
common shares PHP1,000.00 10,000
Par Value
Type of Security Amount
common shares PHP0.10 per share
Ownership Structure (including percentage holdings)
Name Number of Shares % Ownership
Prime Infrastructure Capital, Inc. 9,995 99.99
Guillaume Lucci 1 0
Noel M. Gonzales 1 0
Sandy A. Alipio 1 0
Minerva A. Matibag 1 0
Philip Miguel I. Ranada 1 0
Board of Directors
Name (Regular or Independent)
Guillaume Lucci Regular
Noel M. Gonzales Regular
Sandy A. Alipio Regular
Minerva A. Matibag Regular
Philip Miguel I. Ranada Regular
Principal Officers
Name Position/Designation
Guillaume Lucci Chairman
Noel M. Gonzales President
Sandy A. Alipio Treasurer and Chief Finance Officer
Minerva A. Matibag Chief Administrative Officer
Philip Miguel I. Ranada Corporate Secretary
Maureen O. Lizarondo-Medina Assistant Corporate Secretary
Effect(s)/impact on the business, financial condition and operations of the Issuer

First Gen’s investment in the 2000MW Wawa and Pakil Pumped Storage Hydropower Projects expands the company’s partnership with Prime Infra and embodies First Gen’s mission to forge collaborative pathways for a decarbonized and regenerative future, crystallizing its portfolio's shift to renewable energy. Together with First Gen’s 132MW Pantabangan-Masiway and 165MW Casecnan hydroelectric power plants, the Wawa and Pakil plants will complement the company’s portfolio, as pumped storage hydropower facilities provide grid stability and reliability, allowing for the seamless integration of renewable energy projects into the power system.

Other Relevant Information

The above terms and conditions are the salient features of the HOTA which the investing public ought to be aware of at this stage in order to enable them to make an informed decision on the transaction. The issuer will advise the Exchange of any material development in reqard to the Transaction.

Filed on behalf by:
Name Rachel Hernandez
Designation Vice President and Corporate Secretary