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 12, 2018

2. SEC Identification Number

91447

3. BIR Tax Identification No.

000190324000

4. Exact name of issuer as specified in its charter

SEMIRARA MINING AND POWER CORPORATION

5. Province, country or other jurisdiction of incorporation

Philippines

6. Industry Classification Code(SEC Use Only)

7. Address of principal office

2/F DMCI Plaza, 2281 Don Chino Roces Avenue, Makati City Postal Code 1231

8. Issuer's telephone number, including area code

632-8883000/8883055

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

-

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	4,256,129,420

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.

Semirara Mining and Power CorporationSCC

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

Subject of the Disclosure
Acquisition of SCC shares
Background/Description of the Disclosure
Buy back of SCC shares on February 12, 2018. Please see details of the buy-back below:

Type of Securities

• Common
• Preferred-
• Others-

Details of Share Buy-Back Transaction(s)

Date of Transaction	Number of Shares Purchased	Price Per Share
Feb 12, 2018	74,000	35.30
Feb 12, 2018	11,500	35.35
Feb 12, 2018	8,000	35.40
Feb 12, 2018	16,500	35.45
Feb 12, 2018	10,000	35.50
Feb 12, 2018	29,500	35.55
Feb 12, 2018	40,500	35.60
Feb 12, 2018	20,000	35.65
	210,000

Effects on Number of Shares

	Before	After
Outstanding Shares	4,256,339,420	4,256,129,420
Treasury Shares	8,269,870	8,479,870

Cumulative Number of Shares Purchased to Date 1	5,016,300
Total Amount Appropriated for the Buy-Back Program	2,000,000,000.00
Total Amount of Shares Repurchased	185,986,650.00

Other Relevant Information
-

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