G.R. No. 142824 ; December 19, 2001
Interphil Laboratories Employees Union-FFW, Enrico Gonzales and Ma. Theresa Montejo, petitioners, vs. Interphil Laboratories, Inc., and Honorable Leonardo A. Quisumbing, Secretary of Labor and Employment, respondents.

FACTS

Prior to the expiration of their Collective Bargaining Agreement (CBA) in July 1993, union officers of Interphil Laboratories Employees Union-FFW inquired with company management about the duration of the forthcoming CBA. Dissatisfied with management’s response that it was premature to discuss terms, the union initiated an “overtime boycott” where employees refused their regular 12-hour shifts, and a subsequent “work slowdown” campaign, substantially delaying production. The company filed a petition to declare these actions an illegal strike. Meanwhile, CBA negotiations reached an impasse, leading to a full-blown strike in February 1994. The Secretary of Labor assumed jurisdiction, issued a return-to-work order, and subsumed all related cases.
The specific case concerning the legality of the initial overtime boycott and work slowdown proceeded before Labor Arbiter Manuel Caday. The Labor Arbiter recommended that these actions constituted an illegal strike, a finding adopted by the Secretary of Labor. The Court of Appeals affirmed this decision. The union elevated the case to the Supreme Court, arguing the actions were a legitimate exercise of their right to bargain and that the company had condoned the acts by granting separation benefits to some union officers.

ISSUE

Whether the union’s “overtime boycott” and “work slowdown” constituted an illegal strike.

RULING

The Supreme Court denied the petition and affirmed the Court of Appeals’ decision. The legal logic is anchored on the definition of a strike and the prohibition against such actions during the term of a CBA. A strike is a concerted work stoppage to enforce economic demands. The Court, citing precedent, ruled that a work slowdown, where employees remain at work but deliberately reduce output, is an illegal strike tactic because it is a covert refusal to perform duties while accepting wages, thereby putting economic pressure on the employer. The overtime boycott was similarly a concerted refusal to perform agreed-upon work schedules.
Crucially, these actions occurred while the existing CBA was still in effect. The CBA contained a “no strike, no lockout” provision, which legally barred any form of strike during its term. The union’s economic demands regarding the new CBA’s duration did not justify violating this contractual obligation. The Court also rejected the condonation argument, holding that the company’s grant of separation benefits was a voluntary act of generosity to alleviate employee hardship and did not constitute a waiver of its right to seek a declaration of the strike’s illegality. The union officers who spearheaded the illegal actions were thus validly deemed to have lost their employment status.