G.R. No. 63528 September 9, 1996
ATOK BIG-WEDGE MINING COMPANY, petitioner, vs. HON. INTERMEDIATE APPELLATE COURT and TUKTUKAN SAINGAN, respondents.

FACTS

Private respondent Tuktukan Saingan applied for land registration over a parcel of land in Benguet. Petitioner Atok Big Wedge Mining Company opposed, claiming the land was within its mineral claims named Sally, Evelyn, and Ethel, which were duly recorded in the Mining Recorder’s office in 1921 and 1931. The Court of First Instance denied Saingan’s application, finding the land to be mineral in character. The Intermediate Appellate Court reversed, adjudging Saingan as the owner by virtue of his open, continuous, and adverse possession in the concept of an owner for over thirty years. The appellate court also found that Atok failed to prove its connection to the original locators, Reynolds and Harrison, and that the mining claims had been abandoned due to non-compliance with the annual assessment work requirements under the Philippine Bill of 1902.

ISSUE

The core issue is whether a perfected mining claim under the Philippine Bill of 1902 confers absolute ownership over the land, thereby prevailing over a claim of acquisitive prescription by an agricultural occupant, and whether the mining claimant’s failure to perform annual assessment work results in the abandonment of the claim, reverting the land to the public domain.

RULING

The Supreme Court dismissed the petition and affirmed the appellate court’s decision. The Court held that a perfected mining location under the Philippine Bill of 1902 does not grant absolute ownership of the land itself but only a possessory right to extract minerals. This right is inchoate and contingent upon compliance with statutory conditions, primarily the performance of annual assessment work. Failure to perform this work constitutes abandonment, causing the claim to revert to the public domain. The Court found that Atok failed to substantiate its claim of continuous annual assessment work from 1932 to 1967. Moreover, Atok could not establish its juridical personality or legal interest to oppose the registration, as it did not prove its connection to the original locators. In contrast, Saingan established a bona fide claim of ownership through open, adverse, and continuous agricultural possession for over thirty years, which converted the land to private property by operation of law. The Court emphasized that a mining claim does not ipso facto convert land to mineral land in perpetuity; abandonment allows the land to be acquired through prescription for agricultural purposes. Thus, Saingan’s registrable title, acquired by prescription, prevailed over Atok’s abandoned mining claim.