AN ACT FURTHER EXTENDING THE TERM OF THE FRANCHISE GRANTED TO DAVAO LIGHT AND POWER COMPANY, INC., TO CONSTRUCT, OPERATE AND MAINTAIN AN ELECTRIC LIGHT, HEAT AND POWER SYSTEM IN DAVAO CITY AND THE MUNICIPALITIES OF CARMEN, PANABO DUJALI AND STO. TOMAS, PROVINCE OF DAVAO DEL NORTE, FOR A PERIOD OF TWENTY-FIVE (25) YEARS AND FOR OTHER PURPOSES.