Republic vs. Marcopper Mining Corporation

The Court held that the enactment of Republic Act No. 7942 did not impliedly repeal Republic Act No. 3931, as amended by Presidential Decree No. 984, and the Pollution Adjudication Board retains its jurisdiction to adjudicate pollution cases connected with mining operations. The Mines Regional Director's power to issue orders under Section 67 of RA 7942 is limited to administrative and regulatory functions to ensure compliance with safety and anti-pollution laws within mining operations, and does not include quasi-judicial authority to adjudicate pollution complaints.

Marcopper Mining Corporation (MMC) operated a tailings sea disposal system in Calancan Bay under temporary permits issued by the National Pollution Control Commission (NPCC). Following protests, the NPCC and its successor, the Pollution Adjudication Board (PAB), issued cease and desist orders. MMC appealed to the Office of the President, which enjoined the cease and desist order but required MMC to deposit P30,000.00 daily into an Ecology Trust Fund (ETF) for the Calancan Bay Rehabilitation Project during the restraining order's efficacy. MMC ceased dumping tailings and stopped depositing into the ETF in 1991. The Office of the President lifted the restraining order in 1993. In 1997, the PAB ordered MMC to pay arrears covering the period from when it stopped paying until the restraining order was lifted.

• Temporary Permits and Cease and Desist Orders: MMC held temporary permits to operate a tailings disposal system. Before the permit expired in 1987, religious groups protested, prompting the NPCC to order MMC to cease discharging mine tailings into Calancan Bay. The PAB later issued a similar cease and desist order in April 1988 because MMC's permit had expired and it had not filed for renewal.
• Office of the President Intervention: MMC appealed to the Office of the President (OP). In May 1988, the OP granted a restraining order, enjoining the PAB from enforcing its cease and desist order but directing MMC to undertake rehabilitation at a cost of not less than P30,000.00 a day under PAB supervision.
• Cessation of Dumping and Payments: MMC contributed P30,000.00 daily to the Ecology Trust Fund (ETF) from May 1988. On June 30, 1991, MMC stopped discharging tailings into the Bay and consequently ceased making deposits to the ETF, manifesting that it would discontinue contributions since the basis for the obligation had ceased.
• OP Dismissal of Appeal: In February 1993, the OP dismissed MMC's appeal, affirmed the PAB's cease and desist order, and lifted the May 1988 restraining order.
• PAB Order for Arrears: In January 1997, the Municipal Mayor of Sta. Cruz, Marinduque informed the PAB that MMC had stopped remitting the daily amount. The PAB issued an Order in April 1997, ruling that MMC's obligation to pay persisted during the efficacy of the OP's restraining order (until February 1993), regardless of whether MMC had stopped dumping tailings earlier. The PAB ordered MMC to pay arrears from July 1, 1991, to February 5, 1993.

• Petitioner maintained that Republic Act No. 7942 did not amend or repeal Republic Act No. 3931, as amended by Presidential Decree No. 984, regarding the PAB's jurisdiction over pollution cases.
• Petitioner argued that the Mines Regional Director's jurisdiction under RA 7942 is limited to practices within mining installations and cannot be exercised to the exclusion of the PAB, especially over areas like Calancan Bay.
• Petitioner contended that MMC bound itself to pay P30,000.00 a day for the duration of the OP's restraining order, a condition MMC never appealed.
• Petitioner asserted that MMC was not deprived of due process because the PAB was merely requiring MMC to comply with an obligation under an order that had long become final and executory.

• Respondent countered, relying on the Court of Appeals' ruling, that RA 7942 divested the PAB of jurisdiction over pollution-related matters in mining operations, vesting such authority in the Mines Regional Director.
• Respondent argued that the PAB exceeded its authority and issued the April 1997 Order ex parte without notice or hearing.
• Respondent contended that the obligation to contribute to the ETF ceased when it stopped dumping tailings, and the existing balance in the ETF was more than sufficient to complete the rehabilitation project.

• Procedural Issues: N/A
• Substantive Issues:
  • Whether the Pollution Adjudication Board was divested of its authority to adjudicate pollution cases connected with mining operations by virtue of the enactment of Republic Act No. 7942 (Philippine Mining Act of 1995).
  • Whether Marcopper Mining Corporation has arrears in deposits to the Ecology Trust Fund considering it ceased dumping tailings and the existing funds are sufficient for rehabilitation.

• Procedural: N/A
• Substantive:
  • On the issue of jurisdiction, the Court ruled that the PAB retains its authority to adjudicate pollution cases connected with mining operations. The enactment of RA 7942 did not expressly or impliedly repeal RA 3931, as amended by PD 984. Repeals by implication are not favored, and there is no irreconcilable conflict between the two laws. The Mines Regional Director's power under Section 67 of RA 7942 to issue orders and suspend operations is administrative and regulatory, aimed at ensuring compliance with safety and anti-pollution laws within mining operations, and does not include quasi-judicial powers to adjudicate pollution complaints. The Panel of Arbitrators and Mines Adjudication Board created under RA 7942 also lack jurisdiction over pollution cases, as their scope is limited to disputes involving mining rights and agreements.
  • On the issue of arrears, the Court ruled that MMC has no arrears in deposits. The PAB's own witness admitted during the Court of Appeals hearing that the existing balance of approximately P14,000,000.00 in the ETF was sufficient to complete the rehabilitation project. Furthermore, the OP never objected to MMC's 1991 manifestation that it would stop paying upon ceasing its dumping operations. The Court held that the OP's order directing the daily payment had become functus officio when MMC voluntarily stopped dumping mine tailings.

• Implied Repeal of Laws — Repeals of laws by implication are not favored. Courts must generally assume the congruent application of laws. For an implied repeal to be inferred, the two laws must be absolutely incompatible, and a clear finding thereof must surface. All doubts must be resolved against any implied repeal, and efforts should be exerted to harmonize and give effect to all laws on the subject. The Court applied this doctrine to hold that RA 7942 and RA 3931/PD 984 can co-exist because the Mines Regional Director's administrative powers and the PAB's adjudicative powers are complementary, not absolutely incompatible.
• Jurisdiction of the Pollution Adjudication Board over Pollution Cases — The PAB has broad powers to adjudicate pollution cases in general pursuant to Executive Order No. 192 and PD 984. While a special law providing another forum can divest the PAB of jurisdiction, the Philippine Mining Act of 1995 does not provide such an alternative forum because it does not vest quasi-judicial powers in the Mines Regional Director, the Panel of Arbitrators, or the Mines Adjudication Board to hear and decide pollution cases.

• "The two laws must be absolutely incompatible, and a clear finding thereof must surface, before the inference of implied repeal may be drawn. The rule is expressed in the maxim interpretare et concordare leqibus est optimus interpretandi, i.e., every statute must be so interpreted and brought into accord with other laws as to form a uniform system of jurisprudence."
• "While the mines regional director has express administrative and regulatory powers over mining operations and installations, it has no adjudicative powers over complaints for violation of pollution control statutes and regulations."

• Laguna Lake Development Authority vs. Court of Appeals, 231 SCRA 292 (1994) — Cited for the principle that the adjudication of pollution cases generally pertains to the PAB, except where a special law expressly or impliedly provides for another forum. The Court distinguished this case, holding that RA 7942 does not provide another forum because it does not grant adjudicative powers to the Mines Regional Director.
• Hagad vs. Gozo-Dadole, 251 SCRA 242 (1995) — Cited as controlling precedent for the doctrine that repeals of laws by implication are not favored and that laws must be harmonized.
• Pollution Adjudication Board v. Court of Appeals, 195 SCRA 112 — Cited by the Court of Appeals for the PAB's power to issue ex-parte orders when there is prima facie evidence of exceeding allowable standards.

• Section 19, Executive Order No. 192 — Creates the Pollution Adjudication Board and vests it with the powers and functions of the National Pollution Control Commission with respect to the adjudication of pollution cases under RA 3931 and PD 984. The Court applied this provision to affirm the PAB's continuing jurisdiction over pollution cases.
• Section 6(e, f, g, j, k, p), Presidential Decree No. 984 — Enumerates the powers and functions of the Commission (now PAB), including issuing orders to compel compliance, making orders requiring discontinuance of pollution, and issuing or denying permits. The Court referenced these provisions to define the scope of the PAB's adjudicative authority.
• Section 7(a), Presidential Decree No. 984 — Allows the issuance of ex-parte orders directing the discontinuance of discharge or temporary suspension of operations without prior public hearing when there is prima facie evidence of immediate threat to life, health, or exceeding allowable standards. The Court noted this provision in the context of the PAB's cease and desist orders.
• Section 67, Republic Act No. 7942 — Grants the Mines Regional Director the power to issue orders to remedy practices not in accordance with safety and anti-pollution laws, and to summarily suspend operations in case of imminent danger. The Court interpreted this provision as granting only administrative and regulatory powers, not adjudicative jurisdiction over pollution cases.
• Sections 77-79, Republic Act No. 7942 — Define the jurisdiction of the Panel of Arbitrators and the Mines Adjudication Board, limiting it to disputes involving rights to mining areas, mineral agreements, and surface owners. The Court used these provisions to demonstrate that RA 7942 did not intend to transfer the adjudication of pollution cases to these bodies.

Melo, Vitug, Panganiban, and Purisima, JJ.