MINDANAO INTERNATIONAL CONTAINER TERMINAL SERVICES, INC., PETITIONER, VS. MINDANAO INTERNATIONAL CONTAINER TERMINAL SERVICES, INC. LABOR-UNION-FEDERATION OF DEMOCRATIC LABOR ORGANIZATION (MICTSILU-FDLO), JEFFREY L. CHAVEZ, LOURVEN E. LUCAGBO, ISAGANI L. LLANES, JORGE S. SALARDA, JERRY M. SALENTES, RIAN C. BANIEL, LYLE L. CAJOLES, SYLVESTER TUAREG V. DAGUS, ALLAN A. PABLO, AND TOMMY S. VACALARES REPRESENTED BY THEIR LEGAL COUNSEL AND FEDERATION PRESIDENT, ATTY. GREGORIO A. PIZARRO, RESPONDENTS