GR 148339; (February, 2005) (Digest)
March 16, 2026GR 153983; (May, 2009) (Digest)
March 16, 2026G.R. No. L-30997 April 21, 1981
PHILIPPINE RUBBER PROJECT CO., INC., petitioner, vs. COURT OF INDUSTRIAL RELATIONS, ASSOCIATED LABOR UNION, MINDANAO FEDERATION OF LABOR and PHILIPPINE ASSOCIATION OF FREE LABOR UNIONS, respondents.
FACTS
Petitioner Philippine Rubber Project Co., Inc. owns a rubber plantation and operates a processing plant, engaging in both the planting/tapping of rubber trees and the processing of latex into crude rubber. It processes latex not only from its own plantation but also from other companies. The workers are interchangeably employed, with processing plant employees working in the plantation during the withering season and vice versa, based on operational needs. Respondent labor unions filed a petition for certification election before the Court of Industrial Relations (CIR) to represent the company’s rank-and-file workers.
The company moved to dismiss the petition, challenging the CIR’s jurisdiction by claiming it was an agricultural enterprise. The CIR ordered an investigation into the jurisdictional issue. After hearings, it was established that the corporation performed dual, equally important functions—agricultural and industrial—and that workers were assigned interchangeably between the plantation and the plant without a definite pattern of segregation.
ISSUE
Whether the Court of Industrial Relations correctly assumed jurisdiction over the certification election case involving a company engaged in both agricultural and industrial pursuits with interchangeably assigned workers.
RULING
The Supreme Court affirmed the CIR’s jurisdiction. The legal logic rests on the nature of the enterprise and the character of the employment. The company was engaged in integrated operations where agricultural (plantation) and industrial (processing) activities were inseparable and of equal importance. Crucially, the workers were not distinctly classified as solely agricultural or industrial; they were assigned interchangeably between the field and the plant depending on seasonal needs. This interchangeability meant the workers could not be neatly segregated into purely agricultural workers under the Court of Agrarian Relations’ jurisdiction and purely industrial workers under the CIR’s. In such a mixed enterprise with a composite workforce, the CIR, having first taken cognizance of the case, properly acquired jurisdiction. The Court noted that certification proceedings are not strict litigations, and technicalities, like a motion for reconsideration’s formal defects, should not defeat substantive rights. However, due to the abolition of the CIR under the new Labor Code, the Supreme Court lifted its preliminary injunction and directed that new certification proceedings be initiated before the proper regional office of the Ministry of Labor, rather than remanding the old records.

