Full back Hallam Amos scored the only try of the match for the Dragons.
Newport Gwent Dragons Under 18s fended off the challenge from the Scarlets at Rodney Parade to advance to the final of the Regional Competition final.
In a keenly contested encounter, the home side ran out 8-6 victors with full back Hallam Amos scoring the only try of the match mid way through the second half to edge his side in front after the Scarlets had banged over two penalties to nose ahead after Dragons fly half Ethan Davies responded with a first half penalty.
The Dragons will now take on Cardiff Blues in the Regional Competiton final on Wednesday 18 January, at St Helens (KO 7.30pm).
The Welsh Rugby Union has awarded a unique 'President's Cap' to a specific group of players who represented their country between 1945 and 1979, but missed out on international recognition at the time.
Prabhat Mathema, the WRU's National Medical Manager explains the four part Pitchside Suspected Concussion Assessment process the IRB has devised that is being implemented throughout the Dove Men Series and in the LV= Cup this season, which includes the provision for a five minute temporary substitution to allow an assessment to take place.