G.R. No. 245981 & G.R. No. 246594, August 9, 2022
NERI J. COLMENARES, ET AL., PETITIONERS, VS. RODRIGO R. DUTERTE, PRESIDENT OF THE REPUBLIC OF THE PHILIPPINES, ET AL., RESPONDENTS.

FACTS

Petitioners, members of the House of Representatives and concerned citizens, filed consolidated petitions for prohibition assailing the constitutionality of two Loan Agreements with China’s Export-Import Bank (EXIM Bank) for the Chico River Pump Irrigation Project and the New Centennial Water Source-Kaliwa Dam Project. They argued the agreements violated constitutional provisions on foreign loans, national sovereignty, and patrimony. The loan process originated from a 2016 Memorandum of Understanding, followed by diplomatic notes establishing a procedure where China would recommend at least three contractors, and the Philippine implementing agency would conduct a Limited Competitive Bidding among them.
The petitioners specifically contended that the arbitration clauses in the Loan Agreements, which designated arbitration to be held in Hong Kong and conducted under the rules of the United Nations Commission on International Trade Law (UNCITRAL), contravened Philippine law and public policy. They asserted these clauses effectively submitted the Philippine government to foreign arbitration, waiving sovereign immunity and potentially subjecting national assets to foreign jurisdiction, in violation of the Constitution.

ISSUE

The principal issue is whether the arbitration clauses in the Loan Agreements with EXIM Bank of China are unconstitutional for violating the Philippine Constitution, particularly provisions on national sovereignty and patrimony.

RULING

The Supreme Court, voting 9-4, dismissed the petitions and upheld the constitutionality of the Loan Agreements, including their arbitration clauses. The Court ruled that the petitioners failed to discharge the heavy burden of proving the agreements unconstitutional beyond reasonable doubt. The legal logic centered on the distinction between sovereign and commercial acts (jure imperii vs. jure gestionis) and the government’s inherent power to contract.
The Court clarified that by entering into commercial loan agreements to finance infrastructure projects, the Philippine government engaged in a proprietary act (jure gestionis). In doing so, it implicitly waived its immunity from suit concerning disputes arising from that commercial transaction. The arbitration clause is a standard and essential component of international commercial contracts, designed to provide a neutral forum for dispute resolution. Its inclusion does not constitute an unconstitutional surrender of sovereignty but is a practical contractual mechanism recognized under Philippine law, including Republic Act No. 9285 (The Alternative Dispute Resolution Act of 2004). The Court further held that the choice of Hong Kong as the seat of arbitration and the application of UNCITRAL rules are not contrary to law, morals, good customs, public order, or public policy. The government retains the authority to defend its interests within the agreed arbitral framework, and the clause does not automatically result in an adverse ruling or a loss of national assets.