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)

Mar 13, 2018

2. SEC Identification Number

A199611593

3. BIR Tax Identification No.

005038428

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, 489 Katipunan Road, Balara, Quezon City Postal Code 1105

8. Issuer's telephone number, including area code

(02) 981-8122

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

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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	2,053,945,884

11. Indicate the item numbers reported herein

Please see attached letter to the SEC and PSE.

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
Foreign Currency Differential Adjustment
Background/Description of the Disclosure
We would like to inform you that effective 1 April 2018, water rates for the customers of Manila Water Company, Inc. (the “Company”) will have a Foreign Currency Differential Adjustment (FCDA) of PHP0.59 per cubic meter. This adjustment is based on the exchange rates of USD1:PHP50.5087 and JPY1:PHP0.4554. The FCDA component of the water bill will be adjusted to 2.31% of the basic charge. As provided in the Concession Agreement between the Company and the Metropolitan Waterworks and Sewerage System (MWSS), as amended, the FCDA is a tariff mechanism formulated to account for foreign exchange losses or gains arising from the payment by the Company of concession loans and foreign currency-denominated borrowings of the MWSS, as well as loans of the Company for service expansion and improvement of its services. The FCDA has no impact on the projected net income of the Company.
Other Relevant Information
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