Philex Gold Philippines, Inc. vs. Philex Bulawan Supervisors Union

The doctrine of "equal pay for equal work" applies to supervisory employees of the same rank performing the same kind of work, and management prerogative to institute salary differentials based on seniority, skill, experience, or dislocation does not override the doctrine where the employer fails to adduce evidence distinguishing the employees' basic salary from salary increases or additional benefits attributable to such factors. Corporate officers may not be held solidarily liable with the corporation for labor obligations absent proof of bad faith, gross negligence, conflict of interest, assent to patently unlawful acts, watered stock issuance, contractual stipulation, or specific statutory provision. Service of a voluntary arbitrator's award on a party's liaison office, rather than on counsel's address of record, does not constitute proper notice to counsel under the NCMB Procedural Guidelines.

Philex Gold Philippines, Inc. is a gold mining company operating the Bulawan mines at Vista Alegre, Nabulao, Sipalay, Negros Occidental. Respondent Philex Bulawan Supervisors Union is the sole and exclusive bargaining representative of all supervisors of Philex Gold. The parties entered into a Collective Bargaining Agreement effective August 1, 1996 up to July 31, 2001. When Philex Gold was incorporated in 1996 to exclusively handle gold mining, it took over the Bulawan mines and absorbed certain employees from Philex Mining Corporation's Padcal operations in Tuba, Benguet, who became known as "ex-Padcal" supervisors. Some of these ex-Padcal employees had initially worked at the Bulawan mines as ordinary rank-and-file workers beginning in 1992 before being absorbed as regular supervisory employees effective July 1, 1997.

Philex Gold Philippines, Inc. operates the Bulawan gold mines at Vista Alegre, Nabulao, Sipalay, Negros Occidental. Respondent Philex Bulawan Supervisors Union is the sole and exclusive bargaining representative of all supervisors of Philex Gold. On July 2, 1997, the union and the company entered into a Collective Bargaining Agreement effective August 1, 1996 up to July 31, 2001. After the CBA was signed, Philex Gold made regular supervisory employees of certain workers transferred from Philex Mining Corporation's Padcal, Tuba, Benguet operations, effective July 1, 1997. Some of these "ex-Padcal" supervisors had begun working at the Bulawan mines in 1992 as ordinary rank-and-file workers. When Philex Gold was incorporated in 1996 to exclusively handle gold mining, it took over the Bulawan operations and absorbed some of these ex-Padcal employees into its supervisory workforce.

In November 1997, upon the union's insistence, Philex Gold disclosed the status of the ex-Padcal supervisors. It turned out that the ex-Padcal supervisors were maintained under a confidential payroll, receiving a different set of benefits and higher salaries compared to locally hired supervisors of similar rank and classification performing parallel duties and functions. The wage structure classified supervisors into five categories (S-1 through S-5), each with minimum, medium, and maximum rates. The ex-Padcal supervisors received the maximum for each category—presumably due to seniority, longer work experience in gold mining, specialized skills, and a "dislocation factor"—while the local-hires received the minimum. The structure was kept from the union's knowledge and was only revealed during the proceedings before the voluntary arbitrator. Further, the minimum wage rate for a higher category was in some cases lower than the maximum rate of a lower category, such that a supervisor at S-1 maximum would receive less upon promotion to S-2 minimum.

The union filed a complaint with the National Conciliation and Mediation Board (NCMB), Bacolod City, seeking payment of wage differentials and damages and rectification of the discriminatory salary structure. After the parties submitted their respective position papers and rejoinders, the Voluntary Arbitrator rendered a decision on January 14, 2000 in favor of the union, finding that supervisors of the same ranks were not paid the same rates and that the inequitable rates constituted a discriminatory wage policy amounting to unfair labor practice under Article 248(e) of the Labor Code. The Voluntary Arbitrator ordered Philex Gold and its corporate officers—Gerardo H. Brimo, Leonard P. Josef, and Jose B. Anievas—jointly and severally to readjust the monthly rates of pay of locally hired supervisors to match the ex-Padcal supervisors' rates, effective November 1, 1998, and to pay wage differentials and attorney's fees.

Both parties filed motions for reconsideration. The union sought to move the effectivity date from November 1, 1998 to August 1, 1997. Philex Gold contended it was denied due process, that the decision undermined the collective bargaining process, and that there was neither unlawful discrimination nor wage distortion. On February 29, 2000, the Voluntary Arbitrator modified his earlier decision, this time finding no discrimination but ordering a uniform ₱800.00 monthly increase for all supervisors effective October 1, 1999. The union elevated the matter to the Court of Appeals, which on April 23, 2001 reversed the February 29, 2000 Resolution and reinstated the January 14, 2000 decision with the modification that the readjustment and wage differential be effective August 1, 1997. The Court of Appeals found that Philex Gold failed to prove it did not discriminate against the locally hired supervisors, applying the "equal pay for equal work" doctrine. Petitioners' motion for reconsideration was denied on August 29, 2001, prompting the present petition.

• Proper Service and Timeliness of Motion for Reconsideration: Petitioners argued that the Court of Appeals erred in holding that their motion for reconsideration of the Voluntary Arbitrator's January 14, 2000 decision was filed out of time, because the decision was improperly served on Philex Gold's Liaison Office at Libertad St., Bacolod City rather than on counsel's address of record at Vista Alegre, Nabulao, Sipalay, Negros Occidental, and that counsel only received the decision on January 15, 2000, making the January 25, 2000 motion timely under the 10-day reglementary period.
• Solidary Liability of Corporate Officers: Petitioners contended that corporate officers Brimo, Josef, and Anievas should not be adjudged solidarily liable with Philex Gold, as the Voluntary Arbitrator disposed of an issue not submitted for arbitration and directed solidary liability despite the absence of any finding of malice, bad faith, or gross negligence.
• Scope of "Equal Pay for Equal Work" Doctrine: Petitioners submitted that the "equal pay for equal work" doctrine in International School Alliance of Educators vs. Quisumbing should be narrowly construed to apply only where invidious discrimination exists by reason of race or ethnicity, and should not unqualifiedly remove management prerogative to institute qualitative differences in pay and benefits on the basis of seniority, skill, experience, and the dislocation factor among the same class of workers doing the same kind of work.

• Proper Service of Arbitral Award: Whether the notice of the Voluntary Arbitrator's decision sent through petitioner company's Liaison Office can be considered as notice to counsel for purposes of computing the period to file a motion for reconsideration.
• Solidary Liability of Corporate Officers: Whether the petitioners-corporate officers are solidarily liable with Philex Gold in any liability to respondent Union.
• Equal Pay for Equal Work vs. Management Prerogative: Whether the doctrine of "equal pay for equal work" should not remove management prerogative to institute difference in salary on the basis of seniority, skill, experience, and the dislocation factor in the same class of supervisory workers doing the same kind of work.

• Proper Service of Arbitral Award: No. Service on the company's Liaison Office cannot be considered notice to counsel; the motion for reconsideration was filed within the reglementary period, and the Court of Appeals erred in holding otherwise.
• Solidary Liability of Corporate Officers: No. The corporate officers cannot be held solidarily liable with Philex Gold absent proof of bad faith, gross negligence, conflict of interest, assent to patently unlawful acts, or any other circumstance warranting the piercing of the corporate veil.
• Equal Pay for Equal Work vs. Management Prerogative: No (petitioners' position rejected). The "equal pay for equal work" doctrine was correctly applied by the Court of Appeals, as petitioners failed to adduce evidence distinguishing basic salary from increases or benefits attributable to seniority, skill, experience, or dislocation.

• Proper Service of Arbitral Award: Under Section 4, Rule III of the NCMB Procedural Guidelines in the Conduct of Voluntary Arbitration Proceedings, where a party is represented by counsel, service of pleadings, notices, and awards shall be made on counsel. Petitioners were represented by Attys. Contreras and Manlong, whose address of record was at Vista Alegre, Nabulao, Sipalay, Negros Occidental. The Voluntary Arbitrator's decision, however, was sent through Philex Gold's Liaison Office at Libertad St., Bacolod City. Service on the liaison office or on the petitioners themselves cannot be considered notice in law to petitioners' counsel. Relying on petitioners' assertion that counsel received the decision on January 15, 2000, the motion for reconsideration filed on January 25, 2000 was within the 10-day reglementary period under Article 262-A of the Labor Code. The Court of Appeals therefore erred in holding that the motion was filed out of time.

• Solidary Liability of Corporate Officers: A corporation possesses a legal personality separate and distinct from its officers and the people comprising it. Obligations incurred by the corporation acting through its directors, officers, and employees are its sole liabilities. A corporate director, trustee, or officer may be held solidarily liable with the corporation only in enumerated instances: (1) when they vote for or assent to patently unlawful acts; (2) when they act in bad faith or with gross negligence in directing corporate affairs; (3) when they are guilty of conflict of interest to the prejudice of the corporation; (4) when they consent to the issuance of watered stocks; (5) when they have contractually agreed to hold themselves personally and solidarily liable; or (6) when a specific provision of law makes them personally liable for their corporate action. None of these instances was proven against officers Brimo, Josef, and Anievas; hence, they cannot be held solidarily liable with Philex Gold.

• Equal Pay for Equal Work vs. Management Prerogative: Petitioners admitted that the "same class of workers [are] doing the same kind of work," meaning an ex-Padcal supervisor and a locally hired supervisor of equal rank perform the same kind of work. Where an employer accords employees the same position and rank, the presumption is that these employees perform equal work. The "equal pay for equal work" doctrine, as articulated in International School Alliance of Educators vs. Quisumbing, was therefore correctly applied by the Court of Appeals. Petitioners' argument that management prerogative should allow salary differentiation based on seniority, skill, experience, and the dislocation factor failed because petitioners did not adduce evidence showing that an ex-Padcal supervisor and a locally hired supervisor of the same rank were initially paid the same basic salary, or that any difference was attributable to increases or benefits tied to those factors. The records showed only that an ex-Padcal supervisor was paid a higher salary than a locally hired supervisor of the same rank. Management prerogative, while recognized, is not absolute and must be exercised in good faith and with due regard to the rights of labor, subject to legal limits, collective bargaining agreements, and the general principles of fair play and justice.

• Equal Pay for Equal Work — Persons who work with substantially equal qualifications, skill, effort, and responsibility, under similar conditions, should be paid similar salaries. If an employer accords employees the same position and rank, the presumption is that these employees perform equal work. If the employer pays one employee less than the rest, it is for the employer—not the employee—to explain why the employee is treated unfairly. The doctrine applies to the same class of workers doing the same kind of work; management prerogative to differentiate pay based on seniority, skill, experience, or dislocation does not override it absent evidence distinguishing basic salary from increases or benefits attributable to those factors.

• Separate Corporate Personality and Solidary Liability of Corporate Officers — A corporation has a legal personality separate and distinct from its officers and stockholders. Obligations incurred by the corporation are its sole liabilities. Corporate officers may be held solidarily liable with the corporation only in the following instances: (a) they vote for or assent to patently unlawful acts of the corporation; (b) they act in bad faith or with gross negligence in directing corporate affairs; (c) they are guilty of conflict of interest to the prejudice of the corporation, its stockholders or members, and other persons; (d) they consent to the issuance of watered stocks or, having knowledge thereof, fail to file written objection with the corporate secretary; (e) they have contractually stipulated to hold themselves personally and solidarily liable; or (f) a specific provision of law makes them personally liable for their corporate action.

• Proper Service of Arbitral Awards on Counsel — Under the NCMB Procedural Guidelines, where a party is represented by counsel, service of pleadings, notices, and awards must be made on counsel, not on the party or its liaison office. Service on an address other than counsel's address of record does not constitute notice in law to counsel; the period to seek reconsideration runs from counsel's actual receipt of the award.

• Limits of Management Prerogative — An employer is free to manage and regulate all phases of employment, including hiring, work assignments, working methods, supervision, transfer, lay-off, discipline, and dismissal. However, management prerogative is not absolute; it must be exercised in good faith and with due regard to the rights of labor, and is subject to legal limits, collective bargaining agreements, and the general principles of fair play and justice.

• "The long honored legal truism of 'equal pay for equal work,' meaning, 'persons who work with substantially equal qualification, skill, effort and responsibility, under similar conditions, should be paid similar salaries,' has been institutionalized in our jurisdiction. Such that 'if an employer accords employees the same position and rank, the presumption is that these employees perform equal work' as 'borne by logic and human experience.'" — This passage, quoted by the Court of Appeals and adopted by the Supreme Court, articulates the canonical formulation of the equal pay for equal work doctrine as applied to employees of the same rank, placing the burden on the employer to justify any disparity.

• "A priori, they are not absolute prerogatives but are subject to legal limits, collective bargaining agreements and the general principles of fair play and justice." — This passage defines the boundaries of management prerogative, establishing that the employer's discretion to differentiate pay and benefits is constrained by law, contract, and equity.

• "The corporate officers in this case have not been proven to fall under any of the aforecited instances; hence, they cannot be held solidarily liable with the company in the payment of any liability." — This statement applies the enumerated exceptions to the rule of separate corporate personality, conclusively ruling out solidary liability of the officers absent the requisite findings of bad faith or gross negligence.

• International School Alliance of Educators vs. Quisumbing, G.R. No. 128845, June 1, 2000 — Controlling precedent on the "equal pay for equal work" doctrine. The Court applied its formulation that employees accorded the same position and rank are presumed to perform equal work, and that the burden rests on the employer to explain any salary disparity. The Court upheld the Court of Appeals' reliance on this case.

• Philippine-Singapore Transport Services, Inc. vs. NLRC, G.R. No. 95449, August 18, 1997 — Cited for the principle that management prerogatives are not absolute but subject to legal limits, collective bargaining agreements, and the general principles of fair play and justice. The Court quoted this case to define the boundaries of the employer's discretion in regulating employment.

• MAM Realty Development Corporation vs. National Labor Relations Commission, G.R. No. 114787, June 2, 1995 — Cited for the enumerated instances in which a corporate director, trustee, or officer may be held solidarily liable with the corporation. The Court applied this framework to conclude that the corporate officers in the case were not shown to fall under any of the exceptions.

• Santos vs. National Labor Relations Commission, G.R. No. 101699, March 13, 1996 — Cited for the doctrine that a corporation has a legal personality separate and distinct from those acting for and in its behalf, and that obligations incurred by the corporation are its sole liabilities.

• Luzon Development Bank vs. Association of Luzon Development Bank Employees, 249 SCRA 162 (1995) — Cited by petitioners for the rule that a voluntary arbitrator's decision becomes final after 15 days from notice of the award, relevant to the timeliness issue.

• Alimpoos vs. Court of Appeals, No. L-27331, July 30, 1981, 106 SCRA 159 — Cited in support of the proposition that the date of actual receipt by counsel is the date of notice for purposes of computing the reglementary period.

• Article 248(e), Labor Code — Defines as unfair labor practice the act of an employer of paying wages to employees of the same classification at different rates without valid grounds. The Voluntary Arbitrator applied this provision to find that the discriminatory wage policy of paying ex-Padcal supervisors higher than locally hired supervisors of the same rank constituted unfair labor practice.

• Article 262-A, Labor Code — Provides the 10-day reglementary period within which a motion for reconsideration of a voluntary arbitrator's decision may be filed. The Court applied this provision to determine that petitioners' motion for reconsideration, filed on January 25, 2000, was within the period when reckoned from counsel's actual receipt on January 15, 2000.

• Section 4, Rule III, NCMB Procedural Guidelines in the Conduct of Voluntary Arbitration Proceedings — Provides that where a party is represented by counsel or authorized representative, service of pleadings, notices, and awards shall be made on the latter. The Court applied this rule to hold that service of the Voluntary Arbitrator's decision on Philex Gold's Liaison Office, rather than on counsel's address of record, was improper and did not constitute notice to counsel.

• Section 4, Rule 43, Rules of Court — Cited by petitioners in connection with the rule that a voluntary arbitrator's decision becomes final after 15 days from notice, relevant to the procedural timeliness issue.

Hilario G. Davide Jr. (Chief Justice, Chairman), Leonardo A. Quisumbing, Consuelo Ynares-Santiago, Antonio T. Carpio.