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 11, 2023

2. SEC Identification Number

A-1996-11593

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

Philippines

6. Industry Classification Code(SEC Use Only)

7. Address of principal office

MWSS ADMINISTRATION BUILDING 489 KATIPUNAN ROAD BALARA QUEZON CITY Postal Code 1105

8. Issuer's telephone number, including area code

(632) 7917 5900 loc. 1404

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	2,594,653,325
PREFERRED	3,563,756,068

11. Indicate the item numbers reported herein

-

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 9-1 - Share Buy-Back Transactions References: Section 9 of the Revised Disclosure Rules

Subject of the Disclosure
Repurchase of Common Shares from Ayala Corporation
Background/Description of the Disclosure
Further to our October 11, 2023 disclosure on the “Repurchase of Common Shares and Participating Preferred Shares from Ayala Corporation and Philwater Holdings Company, Inc.”, we wish to inform the Exchange that the repurchase of the 288,998,734 Common Shares from Ayala Corporation has been executed as a regular block sale consistent with the rules and guidelines of the Exchange.

Type of Securities

• Common
• PreferredN/A
• OthersN/A

Details of Share Buy-Back Transaction(s)

Date of Transaction	Number of Shares Purchased	Price Per Share
Oct 11, 2023	288,998,734	17.1647
	288,998,734

Effects on Number of Shares

	Before	After
Outstanding Shares	2,883,652,059	2,594,653,325
Treasury Shares	2,143,838	291,142,572

Cumulative Number of Shares Purchased to Date 1	292,198,734
Total Amount Appropriated for the Buy-Back Program	PhP5,022,364,665.49
Total Amount of Shares Repurchased	PhP5,009,839,149.49

Other Relevant Information
The disclosure was amended to update the Cumulative Number of Shares Purchased to Date.

¹ From the date when the share buy-back program commenced.