Sunway Builders vs. Commission on Audit and Municipality of Carranglan

A final and executory award of the CIAC on a construction dispute involving the government is conclusive on the merits and must be executed by the COA, whose authority thereover is limited to enforcement — determining the funding source, verifying mathematical accuracy, and avoiding double payment — without relitigating evidence, reviewing the case as on appeal, or reversing or modifying the award.

Sunway Builders is a private contractor engaged by the Municipality of Carranglan, Nueva Ecija for the design and construction of its water supply system under a Design-Build-Lease Contract financed through a Development Bank of the Philippines loan. The Municipality is a local government unit subject to audit, while the Commission on Audit exercises general jurisdiction over money claims due from or owing to the government under Presidential Decree No. 1445 and its own rules of procedure. The Construction Industry Arbitration Commission, under Executive Order No. 1008, exercises original and exclusive jurisdiction over disputes arising from or connected with construction contracts, including those to which the government is a party.

In 2004, during the term of then Mayor Luvimindo C. Otic, the Municipality of Carranglan and Sunway Builders executed a Design-Build-Lease Contract for construction of the municipality's water supply system, financed through a loan obtained by Carranglan from the Development Bank of the Philippines. Sunway commenced works on August 8, 2005, with original completion set for August 4, 2008, later extended to September 2008, but the project was not completed in full despite the extension. In 2011, the Sangguniang Bayan passed a resolution unilaterally terminating the contract, while Sunway insisted it had accomplished 59% of the works and demanded payment, which Carranglan under then Mayor Restituto A. Abad did not heed.

Thereafter Sunway filed a complaint before the Construction Industry Arbitration Commission, docketed as CIAC Case No. 02-2015, demanding P19,819,589.00, consisting of P18,169,589.00 unpaid accomplishment and P1,650,000.00 attorney's fees. Carranglan participated in finalizing the terms of reference and filed an answer after several extensions, but on the July 15, 2015 hearing only a messenger appeared to seek postponement, which was denied, so presentation of evidence proceeded without municipal participation and the case was submitted for decision. According to the record, nothing suggested Carranglan objected to Sunway's subsequent formal offer of documentary evidence.

On August 25, 2015, the CIAC rendered an Award for P8,353,327.17, comprising P7,392,793.60 unpaid accomplishment, P134,302.17 interest, P276,231.40 retention money, and P550,000.00 attorney's fees, plus P309,728.84 arbitration costs and escalating interest upon finality. For unpaid accomplishment, the arbitrator fixed total project cost at P18,211,760.00 based on Sunway's Statement of Account and Request for Payment No. 5 dated September 4, 2007 certified by LGU-PMU Coordinator Engineer Cesar Baltazar and Mayor Otic, fixed completion at 59% based on Mayor Otic's January 13, 2010 letter to DBP and the April 30, 2008 Statement of Work Accomplished verified by LGU-PMU Coordinator Engineer Ruel T. Cruz and approved by Mayor Otic, and deducted P3,352,144.40 already paid to arrive at P7,392,793.60. No appeal was taken, the Award became final and executory, and a Writ of Execution issued on November 24, 2015.

On the basis of the Award and Writ, Sunway filed a money claim before the COA Proper for P10,166,654.90, adding accrued interest and arbitration costs to the awarded sums. Upon evaluation, the COA Audit Team Leader found the claim without legal basis as representing partial work as of September 8, 2008 beyond the original contract period and noted liquidated damages should have been imposed for delay. The COA Regional Director concurred in the May 25, 2017 Indorsement, citing delay, lapses and violations of rules, and non-observance of contract terms. The COA Proper ultimately found only 36% accomplishment, P6,622,244.40 aggregate payments representing 36% of the original cost with a P117,750.00 negative adjustment, unsupported second to fifth payments per Audit Observation Memorandum No. 2007-004, and non-completion attributable to Sunway.

• COA Authority over Final CIAC Award: Petitioner argued that the COA has no power and authority to modify or reverse the final and executory CIAC Award of August 25, 2015, over which the CIAC had exclusive and original jurisdiction over claims against government agencies or instrumentalities.
• Denial of Money Claim as Grave Abuse: Petitioner maintained that the COA Proper committed grave abuse of discretion in denying the petition for money claim against the Municipality of Carranglan notwithstanding the final award.
• Entitlement on Facts and Evidence: Petitioner argued that based on the facts and evidence presented before the CIAC, it is legally entitled to the monetary award stated therein, and the COA erred in disregarding the CIAC decision.

• Procedural Defects – Attachments: Respondent countered that the petition should be dismissed for failure to attach relevant pleadings and documents, including the COA Proper Resolution denying reconsideration, the Design-Build-Lease Contract, Mayor Otic's January 13, 2010 letter to DBP, and the money claim filed before the COA Proper.
• Procedural Defects – Service Explanation: Respondent argued that the petition is defective because petitioner failed to sign the explanation for resorting to filing and service via registered mail.
• Jurisdiction and Merits: Respondent maintained that the COA Proper has jurisdiction over the money claim and correctly denied it, there having been in fact an overpayment to Sunway.

• Procedural Compliance: Whether the petition should be dismissed for failure to attach relevant documents and for the unsigned explanation for service via registered mail.
• Jurisdiction – COA vs. CIAC: Whether the COA Proper retains full audit authority over a money claim based on a construction contract dispute already submitted to and decided by the CIAC, or whether CIAC jurisdiction prevails.
• Grave Abuse in Denying Enforcement: Whether the COA Proper committed grave abuse of discretion in denying Sunway's money claim and refusing to execute the final and executory CIAC Award.

• Procedural Compliance: No. The lapses are not fatal, the attached CIAC Award, Writ, and assailed COA issuances sufficiently support the allegation of grave abuse, and the written explanation was no longer required under the amended Rule 13.
• Jurisdiction – COA vs. CIAC: The CIAC's specific and exclusive jurisdiction over construction disputes prevails over the COA's general jurisdiction over money claims where parties voluntarily submitted to arbitration, to the exclusion of the COA on the merits.
• Grave Abuse in Denying Enforcement: Yes. The COA stepped beyond its limited execution-like authority by relitigating completion, payments, and evidence already passed upon by the CIAC and refusing to execute the immutable final award.

• Procedural Compliance: The nomenclature as Petition for Review on Certiorari was brushed aside because filing within the 30-day period under Rule 64 allowed treatment as certiorari. Under Air Philippines Corp. vs. Zamora, only relevant and pertinent documents supporting grave abuse need be attached, contents found in attached documents need not be duplicated, and later submission or higher interest of justice may excuse gaps; the CIAC Award, Writ of Execution, and assailed COA Decision and Resolution sufficed to make out the jurisdictional challenge, while the tenor of the contract, letter, and money claim was ascertainable from those issuances. Personal filing with service by registered mail no longer required a signed written explanation because A.M. No. 19-10-20-SC, effective May 1, 2020, removed personal service priority and dispensed with the explanation for the August 2020 filing.
• Jurisdiction – COA vs. CIAC: Section 26 of Presidential Decree No. 1445 vests general jurisdiction over money claims in the COA, but not exclusively, as other tribunals share concurrent original jurisdiction. Executive Order No. 1008, as a specific law on construction contracts including those with government, prevails over the general grant, so voluntary submission to CIAC vests sole power to hear and decide the controversy to the exclusion of the COA, following Taisei Shimizu Joint Venture vs. Commission on Audit and Tourism Infrastructure and Enterprise Zone Authority vs. Global-V Builders Co. Enforcement still requires a separate money claim before the COA, but the claim is of the second type — one already adjudicated by final judgment — over which COA authority is limited, not full as with first-instance claims under the 2009 Revised Rules of Procedure of the Commission on Audit.
• Grave Abuse in Denying Enforcement: Once a competent court or arbitral body validly acquires jurisdiction, it retains it to the exclusion of others, the COA has no appellate review power over such decisions, and immutability of final judgments must be respected, leaving the COA with execution-like discretion restricted to determining funding source, checking clerical or mathematical accuracy, and avoiding double payment. Here Carranglan submitted to arbitration, did not object to the formal offer, and allowed the 59% finding and P7,392,793.60 computation net of interim payments to become final. By discounting the January 2010 letter and Statement of Work Accomplished for lack of prior COA verification, cross-examination, and authentication, crediting instead the 36% audit finding and overpayment theory, and imposing liquidated damages, forfeiture, and disallowance directives, the COA relitigated matters, re-examined evaluated evidence, and refused execution, thereby overstepping limited authority in a manner amounting to lack or excess of jurisdiction.

• CIAC exclusive jurisdiction over government construction disputes — Where parties to a construction contract involving the government validly submit their dispute to arbitration, the CIAC properly exercises original and exclusive jurisdiction to the exclusion of the COA on the merits, because Executive Order No. 1008 as a specific law prevails over Presidential Decree No. 1445 granting general money-claim jurisdiction. Applied to hold that submission by Sunway and Carranglan vested sole adjudicatory power in the CIAC.
• Two types of COA money claims; limited authority over previously adjudicated claims — Money claims cognizable by the COA are (1) those originally filed before it for first-time adjudication, over which full audit and examination power applies, and (2) those arising from a final and executory judgment of a court or arbitral body that earlier exercised jurisdiction to the exclusion of the COA, over which authority is limited. Applied to classify Sunway's claim as of the second type, precluding de novo evaluation.
• COA as execution court; bars to general audit powers — For second-type claims, the COA may not relitigate issues and re-examine evidence already passed upon, review the case on the merits as if on appeal, or reverse or modify the final award, in light of retained jurisdiction by the first tribunal, absence of appellate power, and immutability of judgments; discretion is akin to an execution court, restricted to upholding finality, determining funding source, validating mathematical accuracy, and preventing double payment. Applied to find grave abuse in the COA's turnaround imposing liquidated damages and forfeiture.
• Relevancy test for Rule 64 attachments — Under Air Philippines Corp. vs. Zamora, only relevant and pertinent pleadings supporting grave abuse need accompany the petition, duplication is unnecessary where contents appear in attached judgments, and deficiencies may be excused in the higher interest of justice. Applied to excuse non-attachment of the contract, letter, and money claim where the CIAC Award and COA Decision stated their import.
• Amended Rule 13 on service and filing — Under A.M. No. 19-10-20-SC, litigants may choose between personal service and service by mail without priority for personal mode, dispensing with the written explanation formerly required by Section 11, Rule 13 of the 1997 Rules of Court. Applied to reject dismissal for the unsigned explanation for registered-mail service.

• "The COA's exercise of discretion in approving or disapproving money claims that have been determined by final judgment is akin to the power of an execution court." — Defines the limited, enforcement-only character of COA review over claims already fixed by final judgment, central to the finding of overreach.
• "[o]nce a court or other adjudicative body validly acquires jurisdiction over a money claim against the government, it exercises and retains jurisdiction over the subject matter to the exclusion of all others, including the COA." — States the jurisdictional exclusivity principle preventing the COA from displacing the CIAC after valid submission to arbitration.
• "the proper procedure to enforce a judgment award against the government is to file a separate action before the COA for its satisfaction." — Explains why a money claim before the COA remains necessary even after exclusive CIAC adjudication, framing the two-stage enforcement process.
• "Being a specific law, [Executive Order] No. 1008 providing for CIAC's exclusive jurisdiction prevails over [Presidential Decree No.] 1445, granting the COA the general jurisdiction over money claims due from or owing to the government." — Articulates the specific-over-general statutory reconciliation applied to uphold CIAC primacy on construction merits.

• Taisei Shimizu Joint Venture vs. Commission on Audit, G.R. No. 238671, June 2, 2020 — Controlling precedent followed for CIAC exclusivity upon voluntary submission, two-type money-claim framework, limited COA execution-like authority, and remand for proper execution and funding-source determination.
• Tourism Infrastructure and Enterprise Zone Authority vs. Global-V Builders Co., G.R. No. 219708, October 3, 2018 — Followed for the proposition that valid agreement to arbitrate vests the CIAC with proper jurisdiction over government construction disputes.
• Air Philippines Corp. vs. Zamora, 529 Phil. 718 (2006) — Followed to lay down the three guideposts on relevancy, non-duplication, and excusable deficiencies for Rule 64 attachments.
• Callang vs. Commission on Audit, G.R. No. 210683, January 8, 2019 — Applied as analogous compliance where missing auditor recommendations were ascertainable from the attached COA Decision.
• NPC Drivers and Mechanics Assn. vs. National Power Corp., 821 Phil. 62 (2017) — Cited for the enforcement procedure requiring a separate COA action to satisfy a judgment award against the government.
• Theo-Pam Trading Corp. vs. Bureau of Plant Industry, G.R. No. 242764, January 19, 2021 — Cited to support full COA adjudicatory duty for first-type claims not previously tried.

• Section 26, Presidential Decree No. 1445 — Grants the COA general jurisdiction over audit, accounts, and settlement of all debts and claims due from or owing to the government; applied as non-exclusive and general, yielding to CIAC specific jurisdiction on construction merits but preserving COA enforcement jurisdiction.
• Executive Order No. 1008 — Provides CIAC original and exclusive jurisdiction over disputes arising from or connected with construction contracts including government contracts; applied as specific law prevailing in the jurisdictional conflict.
• Section 1, Rule VIII and Section 2, Rule VIII, 2009 Revised Rules of Procedure of the Commission on Audit — Govern money claims cognizable by the Commission Proper and require a petition with certified true copies of relied-upon documents including the final award; applied to define claimant's burden to prove finality and COA's validation duty.
• Sections 68 and 69.2, Implementing Rules and Regulations of Republic Act No. 9184 — Provide for liquidated damages for delay and forfeiture of performance security; invoked by the COA Proper to justify denial and directives, but held beyond limited authority when contradicting the final CIAC Award.
• Section 5, Rule 64, Rules of Court — Requires duplicate original or certified copies of the assailed judgment and relevant material portions, with non-compliance as ground for dismissal; applied with discretion under the relevancy test to sustain the petition.
• Section 11, Rule 13, 1997 Rules of Court, as amended by A.M. No. 19-10-20-SC — Formerly required written explanation for non-personal service or filing, now dispensing with priority for personal mode; applied to excuse the unsigned explanation for service by registered mail.

Leonen, Acting C.J., Caguioa, Hernando, Lazaro-Javier, Zalameda, Gaerlan, Rosario, J. Lopez, Dimaampao, Marquez, Kho, Jr., and Singh, JJ., concur. Gesmundo, C.J. and M. Lopez, J., on official business.