C07352-2026

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)
Oct 12, 2026
2. SEC Identification Number
10044
3. BIR Tax Identification No.
000283731000
4. Exact name of issuer as specified in its charter
PHILEX MINING CORPORATION
5. Province, country or other jurisdiction of incorporation
Philippines
6. Industry Classification Code(SEC Use Only)
7. Address of principal office
2nd Floor Launchpad, Reliance Street cor. Sheridan Street, Mandaluyong City Postal Code 1550
8. Issuer's telephone number, including area code
+632 86311381
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 5,782,399,068
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.

Philex Mining CorporationPX

PSE Disclosure Form 4-32 - Reply to Exchange's Query

Subject of the Disclosure

Further information regarding disclosure on Philex NAMAWU's Strike and DOLE Concilliation-Mediation Conference
Description of the Disclosure

Further information regarding disclosure on Philex NAMAWU's Strike and DOLE Concilliation-Mediation Conference
Information Requested

In compliance with the request for additional information received by Philex Mining Corporation (“Philex” or “the Company”) this morning, kindly see our responses to queries below.

The reported strike has commenced yesterday, Sunday, October 11, 2026, and is ongoing as of this writing.

So far, mining and processing operations have continued and remained unhampered. Initial reports saw production and output levels yesterday are at the usual without any drastic decrease, but we are still in the process of finalizing the daily production report for yesterday.

Absences to the workforce yesterday were recorded at thirty-five percent (35%), but not all absences were confirmed as strike participants. The absences were compensated by two long shifts implemented by both mine and mill, and managers and supervisors have augmented the workforce, including rank-and-file workers who reported for work and opted, on their own free will, not to join the strike.

The statement in the Philippine Daily Inquirer article (“400 workers of Benguet mining firm go on strike over wage dispute”, October 11, 2026) that “Around 400 underground and surface workers” went on strike is untrue. The Company recorded that there were only less than a hundred participants at the picket lines yesterday and this morning.

The statement also in the same article that “management issued a memorandum directing employees not to join the planned work stoppage” is false. No such memorandum was issued by company management, and it is something that the


Company will never do. Philex respects the right of workers to organize and to bargain collectively. We remain committed to resolving all issues through dialogue, in good faith, and within the framework of Philippine labor laws.

As part of efforts to reach a mutually acceptable resolution, the Department of Labor and Employment (DOLE) has invited the Company and the union to a conciliation-mediation conference before the Office of the Secretary, through the Office of the Assistant Secretary for Regional Operations, today, October 12, 2026, at the DOLE Building in Manila. The Company will continue to work with the union, the NCMB, and DOLE toward this end.

The Company will continue to operate in a safe, orderly, and responsible manner. Our commitments to our clients, investors and shareholders, regulatory agencies, banking partners, contractors and suppliers, host communities, and other stakeholders remain in place, and we have measures to ensure continuity at Padcal and across the Company.

Safety comes first. The safety and welfare of every employee, contractor, and community member at Padcal is our top priority and will not be compromised. All safety protocols, environmental safeguards, and mine management standards will remain in force.

The Company will likewise provide further updates as appropriate.
Filed on behalf by:
Name Paraluman Navarro
Designation AVP Finance