G.R. No. L-29669. February 29, 1972.
PHILEX MINING CORPORATION, petitioner, vs. LUZ M. ZALDIVIA and THE SECRETARY OF AGRICULTURE AND NATURAL RESOURCES, respondents.

FACTS

The case originated from an adverse claim filed by Philex Mining Corporation against the lode lease application of respondent Luz M. Zaldivia over the “George Claim.” The claim’s chain of title showed an assignment from the original locator, George T. Scholey, to Milagros Yrastorza, who later filed a lease application and subsequently transferred her rights to Zaldivia. Upon publication of Zaldivia’s application, Philex interposed an adverse claim, asserting it was the equitable owner. Philex alleged that Scholey, its former general manager, located the claim for the corporation’s benefit, and that the subsequent transfers to Yrastorza and Zaldivia (both former employees) were merely agency arrangements, leaving Philex as the true owner.
Respondent Zaldivia moved to dismiss the adverse claim, and the Director of Mines, focusing on the jurisdictional issue, dismissed it. The Director ruled the Bureau lacked jurisdiction as the core question involved ownership and contractual relations, which are judicial in nature. The Secretary of Agriculture and Natural Resources affirmed this decision on appeal. Philex then elevated the case to the Supreme Court, contending that amendments to the Mining Act via Republic Act No. 4388 vested the Director of Mines with jurisdiction to resolve such disputes.

ISSUE

Whether the Director of Mines has jurisdiction to adjudicate an adverse claim that raises questions of ownership and contractual relations over a mining claim, as opposed to a conflict arising directly from mining locations.

RULING

The Supreme Court dismissed the petition and affirmed the executive decision, holding that the Director of Mines correctly declined jurisdiction. The Court explained that the jurisdiction of the Director of Mines under the Mining Act, even as amended by Republic Act No. 4388 , is limited to conflicts and disputes arising out of mining locations, such as those concerning overlapping boundaries, priority of discovery, and compliance with statutory location requirements. These are matters administrative in character.
In contrast, Philex’s adverse claim was grounded on allegations of a fiduciary or contractual relationship, specifically that the locator and subsequent transferees acted as agents for the corporation. This presented a question of beneficial or equitable ownership stemming from alleged private agreements, which is inherently judicial. The Court cited the doctrine in Espinosa vs. Makalintal, which delineates that executive officers like the Director of Mines possess only administrative powers, such as granting permits or deciding conflicting applications based on mining laws. They cannot adjudicate complex issues of contract law, trust, or ownership rights between private parties.
The Court rejected Philex’s argument that the Espinosa ruling was inapplicable because the mining claim was not yet under a government lease. It clarified that the nature of the controversy—judicial rather than administrative—is the determining factor for jurisdiction, not the stage of the application process. Since the adverse claim did not involve a mining conflict proper but a dispute over contractual and proprietary rights, the proper forum for its resolution is the regular courts of justice.