Dalekovod will pocket some 7 million euro from the deal, the company said in a statement.
The contract was awarded by Montenegro's state-run power utility company Elektroprivreda Crne Gore.
The deadline for completing the extension of 400/110 kV substation Ribarevina is 26 months.
The construction of 110/10 kV substation Podgorica 5 and a 110 kV transmission line should be completed in 12 months. The installation of 110 kV cable links between substations Podgorica 5 and Podgorice 3 should be finished in 23 months.
Dalekovod's shares were traded at some 727 kuna ($141.2/102.2 euro) by 1336 GMT on Friday on the Zagreb bourse, down from Thursday’s close of 731 kuna.
(1 euro= 7.1127 kuna)