Glamorgan Wanderers Youth and Merhtyr Youth will meet in the Webb Ellis final after successfully winning their respecitve semi finals.
At Caerphilly it was a very close affair where Wanderers scraped home 16-21 against Bridgend Athletic Youth.
Bridgend Athletic established an early 10-3 lead with a try by flanker Evans and a conversion and penalty from scrum half Davies.
Glamorgan Wanderers kept in the tie with two penalties from outside half Bird before Davies extended the Bridgend Athletic tally with another penalty.
A try in the last moments of the first half from wing Mortimer pulled the Wanderers back into the tie.
At half time Bridgend Athletic led narrowly by 13-11 points.
In the second half Bridgend Athletic extended their lead with another Davies penalty. Glamorgan Wanderers upped their game and through their big and well organised pack exerted pressure on the Bridgend Athletic line.
After withstanding that pressure for some time Bridgend Athletic conceded a penalty try after a driving maul from the now dominant Wanderers pack. With about 10 minutes to go Wanderers took the lead for the first time in the match. They held on to win a hard fough clash.
At Abercynon it was a less tense battle as Merthyr gained a 18-0 victory.
Merthry converted early pressure into points that led to them eventually running out comfortable winners. Merthyr scored two tries, a conversion and a penalty with no reply from Beddau Youth.
It is planned to play the Final on Saturday 1st May at a venue to be determined.
As the countdown continues for RWC2015, Tournament Chief Executive Debbie Jevans visited the Millennium Stadium to discuss preparations for the eight matches and reveal the positive news that 100,000 tickets for games at the home of Welsh rugby have sold in the last seven days.
Jason Harries is targeting a first win on the World Series circuit this season with Wales. The series returns to action this weekend in Dubai where Harries is part of a team hoping to build from its efforts in round one in October.
Wales skipper Jevon Groves says his side have addressed a few points from Gold Coast and aim to 'hit the ground running' in the next two rounds of the World Series, kicking off with this weekend in Dubai before heading off to South Africa next week.
Wales Sevens manager Steff Thomas is hopeful his side can build from a quarter-final spot in the opening round of the World Series in Australia when his side take part in the forthcoming double header in Dubai and South Africa.