Benguet Corporation vs. DENR-MAB

Appeals from the Mines Adjudication Board must be taken to the Court of Appeals under Rule 43 of the Rules of Court, not directly to the Supreme Court via Rule 65, notwithstanding Section 79 of Republic Act No. 7942 which unconstitutionally expands the Supreme Court's appellate jurisdiction without its consent.

On June 1, 1987, Benguet Corporation and J.G. Realty and Mining Corporation executed a Royalty Agreement with Option to Purchase (RAWOP) and a Supplemental Agreement over four mining claims, with Benguet acting as operator and J.G. Realty as claimowner. Under the RAWOP, Benguet assumed obligations to perfect the mining rights, examine the claims, and develop them into commercial production, while J.G. Realty was entitled to a five percent royalty on the net realizable value. On August 9, 1989, Benguet notified J.G. Realty of its intent to develop the claims. On February 9, 1999, J.G. Realty unilaterally terminated the RAWOP, citing Benguet's failure to develop the claims within two years, the presence of high graders, the absence of a term limit, and non-payment of royalties. Benguet refuted these grounds, claiming substantial investments, force majeure due to the non-issuance of a temporary permit by the Mines and Geosciences Bureau, and alleging that royalties were available for pick-up but uncollected by J.G. Realty.

• The RAWOP and Obligations: On June 1, 1987, Benguet and J.G. Realty executed a RAWOP and Supplemental Agreement over four mining claims (Bonito I-IV). J.G. Realty was acknowledged as claimowner and Benguet as operator, jointly filing MPSA Application No. APSA-V-0009. Benguet obligated itself to perfect the mining rights, examine the claims within 24 months, and place the claims into commercial production within 24 months of written notice. J.G. Realty was entitled to a five percent royalty.
• Termination of the Agreement: On August 9, 1989, Benguet issued a notice of intent to develop the mining claims. On February 9, 1999, J.G. Realty informed Benguet of the termination of the RAWOP due to: (1) failure to develop within two years; (2) allowing high graders to operate; (3) absence of a term limit; and (4) non-payment of royalties.
• Benguet's Response: On March 8, 1999, Benguet countered that it had invested PhP 42.4 million, the non-issuance of a Mines Temporary Permit constituted force majeure, the high graders pre-existed its takeover, and royalties were ready for pick-up but J.G. Realty had refused collection since August 1994.
• Administrative Proceedings: J.G. Realty filed a Petition for Declaration of Nullity/Cancellation of the RAWOP with the POA. The POA canceled the RAWOP and excluded Benguet from the MPSA application. Benguet appealed to the MAB, which affirmed the POA decision and denied reconsideration.

• Arbitration Clause: Petitioner argued that the dispute should have been referred to voluntary arbitration prior to administrative action, pursuant to Sections 11.01 and 11.02 of the RAWOP and Republic Act No. 876.
• Insufficiency of Evidence: Petitioner maintained that the MAB exceeded its jurisdiction in sustaining the cancellation for breach of contract absent evidentiary support.
• Unjust Enrichment: Petitioner asserted that the cancellation of the RAWOP prejudiced its substantial rights and resulted in the unjust enrichment of J.G. Realty at Benguet's expense.

• Estoppel: Respondent countered that petitioner was estopped from questioning the POA's jurisdiction after filing an Adverse Claim, submitting an Answer with counterclaim, and actively participating in the proceedings without seeking dismissal.
• Special Law Prevails: Respondent argued that Republic Act No. 7942, a special law, prevails over the arbitration stipulations and Republic Act No. 876, and that the POA itself functions as an arbitral body, rendering prior voluntary arbitration unavailing.
• Contractual Breach: Respondent asserted that petitioner breached the RAWOP by failing to pay royalties through the contractually mandated mode of bank deposit and by failing to prosecute the MPSA application.

• Proper Remedy: Whether a petition for certiorari under Rule 65 is the proper remedy to assail a Mines Adjudication Board decision.
• Arbitration: Whether the controversy should have been first submitted to voluntary arbitration before the Panel of Arbitrators took cognizance of the case.
• Evidence for Cancellation: Whether the cancellation of the RAWOP was supported by evidence.
• Unjust Enrichment: Whether the cancellation of the RAWOP amounted to unjust enrichment of J.G. Realty at the expense of Benguet.

• Proper Remedy: The petition was dismissed outright for resorting to an improper remedy. Appeals from the Mines Adjudication Board must be taken to the Court of Appeals under Rule 43, not directly to the Supreme Court via Rule 65, as direct recourse unconstitutionally expands the Supreme Court's appellate jurisdiction without its consent and violates the judicial hierarchy.
• Arbitration: While the RAWOP validly mandates prior resort to voluntary arbitration and divests the POA of jurisdiction over the dispute, petitioner was estopped from challenging the POA's jurisdiction after actively participating in the POA and MAB proceedings and failing to timely seek certiorari upon the POA's assumption of jurisdiction.
• Evidence for Cancellation: The cancellation was supported by substantial evidence. Petitioner failed to pay royalties through the contractually stipulated mode of bank deposit under Section 14.05 of the RAWOP, and the burden of proving payment rests on the debtor. Petitioner also failed to demonstrate efforts to prosecute the MPSA application.
• Unjust Enrichment: No unjust enrichment resulted from the cancellation. Unjust enrichment requires a benefit without a valid basis; here, the cancellation was a justified consequence of petitioner's own contractual breaches, leaving it without any legal right to participate in the mining claims.

• Appeals from Quasi-Judicial Agencies — Decisions of the Mines Adjudication Board must be appealed to the Court of Appeals under Rule 43 of the Rules of Court. Section 79 of Republic Act No. 7942, which provides for direct appeal to the Supreme Court, was invalidated as it unconstitutionally expands the Supreme Court's appellate jurisdiction without its advice and consent. The hierarchy of courts dictates that direct recourse from administrative agencies to the Supreme Court will not be entertained absent exceptional circumstances.
• Voluntary vs. Compulsory Arbitration — A clear distinction exists between voluntary and compulsory arbitration. Voluntary arbitration involves arbitrators selected by the parties and not part of a governmental unit, whereas compulsory arbitration is conducted by a government agency with the authority to investigate and make a binding award. The Panel of Arbitrators under the Mining Act engages in compulsory arbitration.
• Estoppel by Participation — A party that actively participates in proceedings before a quasi-judicial body and seeks affirmative reliefs cannot later challenge that body's jurisdiction upon receiving an adverse decision, especially after the lapse of a considerable period.
• Burden of Proof in Payment — One who pleads payment bears the burden of proving it. An allegation of non-payment is a negative allegation that does not require proof from the creditor; the debtor must show with legal certainty that the obligation was discharged by payment.

• "A petition for review by certiorari and question of law may be filed by the aggrieved party with the Supreme Court within thirty (30) days from receipt of the order or decision of the [MAB]." However, this Court has already invalidated such provision... ruling that a decision of the MAB must first be appealed to the Court of Appeals (CA) under Rule 43 of the Rules of Court, before recourse to this Court may be had." — Establishes the proper mode of appeal from the MAB.
• "In this factual milieu, the Court rules that the jurisdiction of POA and that of MAB can no longer be questioned by Benguet at this late hour. What Benguet should have done was to immediately challenge the POA’s jurisdiction by a special civil action for certiorari when POA ruled that it has jurisdiction over the dispute." — Articulates the application of estoppel against jurisdictional challenges.
• "As a general rule, one who pleads payment has the burden of proving it. Even where the plaintiff must allege non-payment, the general rule is that the burden rests on the defendant to prove payment, rather than on the plaintiff to prove non-payment." — Reiterates the rule on burden of proof for payment.
• "There is no unjust enrichment when the person who will benefit has a valid claim to such benefit." — Defines the absence of unjust enrichment when the benefit is legally justified.

• Carpio v. Sulu Resources Development Corp., G.R. No. 148267, August 8, 2002 — Controlling precedent. Established that appeals from the MAB must be taken to the CA via Rule 43, invalidating Section 79 of RA 7942 which unconstitutionally expanded the SC's appellate jurisdiction.
• Asaphil Construction and Development Corporation v. Tuason, Jr., G.R. No. 134030, April 25, 2006 — Followed. Reiterated the Carpio doctrine, although not applied retroactively in that case due to its filing date preceding the Carpio promulgation.
• BF Corporation v. Court of Appeals, G.R. No. 120105, March 27, 1998 — Cited. Upheld the validity of arbitration clauses and the procedure of staying court proceedings pending arbitration.
• Ludo and Luym Corporation v. Saordino, G.R. No. 140960, January 20, 2003 — Cited. Distinguished voluntary arbitration from compulsory arbitration.
• Jimenez v. National Labor Relations Commission, G.R. No. 116960, April 2, 1996 — Cited. Established that the burden of proving payment rests on the party alleging it.
• Car Cool Philippines, Inc. v. Ushio Realty and Development Corporation, G.R. No. 138088, January 23, 2006 — Cited. Defined unjust enrichment under Article 22 of the Civil Code.

• Section 79, Republic Act No. 7942 (Philippine Mining Act of 1995) — Provided for direct appeal to the Supreme Court from MAB decisions. Declared invalid as it unconstitutionally expanded the Supreme Court's appellate jurisdiction without its consent.
• Sections 2, 6, and 7, Republic Act No. 876 (Arbitration Law) — Govern the scope of arbitration agreements, the procedure for compelling arbitration, and the stay of civil actions pending arbitration. Applied to uphold the validity of the RAWOP's arbitration clause.
• Section 32, Republic Act No. 9285 (Alternative Dispute Resolution Act of 2004) — Reiterates that domestic arbitration is governed by Republic Act No. 876.
• Article 22, Civil Code — Defines unjust enrichment. Applied to rule that no unjust enrichment occurred because the benefit to J.G. Realty was supported by a valid claim arising from Benguet's breach.
• Rule 43, Rules of Court — Governs appeals from quasi-judicial agencies to the Court of Appeals. Applied as the proper remedy for MAB decisions.

Leonardo A. Quisumbing (Chairperson), Antonio T. Carpio, Conchita Carpio Morales, Dante O. Tinga.