Dragons coach Steve Pritchard said, "What pleased me more than the result was the fact that after scraping a win over the Scarlets last time out, we asked the boys to improve in certain areas and they responded exceptionally well.
"We must now work on our discipline as we gave away several silly penalties at vital times which prevented us building up some good momentum.
"However, we are delighted to have won these two games and we look forward with confidence to the remainder of the competition."
The game got off to an enterprising start and both teams had crossed their opponents' line within the first ten minutes. The Ospreys were first on the scoreboard and hooker Mike White (Loughor) was driven over by his pack following a lineout for a try which Nathan Healy (Nantyffyllon) converted.
The home team responded immediately and Jordan Rees (Caerphilly) rounded off a fine handling movement to cross with Jamie Howells (Bargoed) adding the first of four conversions.
The Dragons pack were making things difficult for the visitors and it was no surprise when they took the lead with a good team try by Blackwood full back Kristian Perry. Despite having the run of play, the Dragons were unable to add to their total until just before the break when centre Phil Price (Caerphilly) made a telling break through the heart of the defence to cross near the posts.
A Healy penalty reduced the arrears but a try from a scrum by Dragons number 8 and captain David Brake (Caerphilly) effectively made the game safe for his side before the Ospreys struck back with the Dragons temporarily reduced to fourteen men and prop Dennis Pugh was rewarded for his efforts with a try after a spell of concerted pressure.
A number of unforced errors and numerous replacements disrupted the continuity of the remainder of the game and both sides struggled to maintain their cohesion. A penalty from Dragons replacement Shaun Thomas (Blaina) was the last action of the game.
Tries: J Rees, K Perry, P Price, D Blake
Cons: J Howells (4)
Pen: Shaun Thomas
Tries: M White, D Pugh
Con: N Healey
Pen N Healey
Beating Merthyr has boosted Carmarthen Quins hopes of reaching a top eight spot in the Principality Premiership. Quins captain Haydn Pugh is delighted with his team's progress and is determined that everyone from the Under 6s through to the senior team, enjoys the ride.
When the Wales squad were asked to nominate individuals who played a big part in their early playing days, Wales and Dragons full back and wing Hallam Amos thought of his former Monmouth School rugby coach John Bevan.
Sam Cross and Luke Treharne have been named as co-captains of the Wales Sevens side as head coach Gareth Williams names his 12-man squad to play in the first leg of the HSBC World Series in Dubai next weekend.
Bedwas head coach Steve Law and players Nicky Griffiths and Alun Rees extol the virtues of the close knit club as they prepare to host third place RGC 1404 - who are one place head of them on the Principality Premiership points table - on Saturday.
Many of the Wales squad have said Diolch (thank you) to someone who played an important part in their early playing days by nominating them to be invited to the Wales v South Africa match. One person, Gowerton Comprehensive geography teacher Mr Dean Mason was nominated by two of his former pupils, Dan Biggar and Sam Davies.
The second WRU disability rugby pilot has been delivered, this time in Caerphilly schools, culminating in a festival at the Caerphilly Centre of Sporting Excellence, Ystrad Mynach tomorrow. Plans are in place to set up a Disability Rugby Club in Newbridge to provide long-term playing opportunities.
WRU TV: Hear from inside the Wales camp as Neil Jenkins discusses this weekend's clash with South Africa and how the squad are looking to put in a strong performance to round of the 2016 Under Armour Series