C08874-2025

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)
Dec 23, 2025
2. SEC Identification Number
A1996-11593
3. BIR Tax Identification No.
005-038-428-000
4. Exact name of issuer as specified in its charter
MANILA WATER COMPANY, INC.
5. Province, country or other jurisdiction of incorporation
Quezon City, Philippines
6. Industry Classification Code(SEC Use Only)
7. Address of principal office
MWSS Administration Building, No. 489 Katipunan Road, Balara, Quezon City Postal Code 1105
8. Issuer's telephone number, including area code
09171547921
9. Former name or former address, if changed since last report
Not Applicable
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 2,601,499,272
Preferred Shares 3,563,756,068
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.

Manila Water Company, Inc.MWC

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

10-Year Term-Loan Facility with Metropolitan Bank & Trust Company

Background/Description of the Disclosure

We wish to advise the Exchange and the Commission that Manila Water Company, Inc. (“Manila Water”) signed a 10-year term loan facility of up to ₱15 Billion with Metropolitan Bank & Trust Company. The loan will be used to finance Manila Water’s capital expenditure projects and/or general corporate requirements.

Other Relevant Information

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Filed on behalf by:
Name Bernard Joseph Malibiran
Designation Legal Services Director