Paul Dunne lies joint third at halfway mark at Shenzhen International in China, six strokes behind leader Soo-Min Lee.
The Wicklow man started with bogeys on the first and fourth hole, but birdies at seven and nine and an eagle on 13th helped him reach seven under-par.
Lee is three shots ahead of Joost Luiten and six clear of the Greystones golfer and Brandon Stone.
Michael Hoey is three-over at the rain delayed tournament, with several players yet to even start their second round because of bad weather.
Korea's Lee produced another flawless performance to set an imposing target. He is yet to drop a shot at Genzon Golf Club after adding a bogey-free 65 to his opening 66 to finish 13 under par, to leave him ahead of Joost Luiten, who recorded a 66.
More than five hours of play had been lost due to two separate thunderstorms, meaning the second round would not be completed on schedule, with 12 groups not even getting their rounds under way.
Lee had shared the overnight lead on six under with France's Alexander Levy and carried on where he left off on Friday, starting on the back nine and carding five birdies to race to the turn in 31.
The 22-year-old also birdied the first and although he was briefly joined in the lead by Luiten, the Dutchman dropped two shots in the last five holes and a birdie on the ninth extended Lee's advantage.
Luiten, whose second place in the Spanish Open last week was his fifth top-10 finish in eight events this season, had also started on the back nine and eagled the short par-four 11th before adding four birdies in a row from the 15th.
The world number 64 also birdied the second and fourth to join Lee on 12 under par, but dropped his first shot of the day on the difficult fifth and also bogeyed the eighth after failing to get up and down from an awkward lie on the edge of a greenside bunker.
Former Ryder Cup star Victor Dubuisson had found an unusual way to celebrate his 26th birthday, the Frenchman withdrawing from the event during the second suspension of play citing a hand injury.
Dubuisson was two under for his round and three under for the tournament after 10 holes, but had hit his tee shot deep into the trees on the par-five second before the players were called off the course.