He finished 36 holes at 8-under-par 134 and Mikko Ilonen also reached that number, but has yet to finish his second round. Ilonen will have three holes to play on Saturday.
The second round was suspended due to darkness, but lightning has been the real problem this week. It forced the suspension on Thursday's first round and there was another delay on Friday. The players will return to Damai Indah Golf and Country Club Saturday morning to complete the round.
Tampion, playing only his fourth event as a professional, was one of the players who finished the first round on Friday. All totaled, he got in 22 holes on Friday, but the 22-year-old was more than happy with the result.
'I've been up since four o'clock this morning so it's been a long day, but I'm delighted as I hit the ball well and putted great,' said Tampion. 'Playing 22 holes was tiring, but I am sort of used to it. Just coming out of amateur golf, I have played a lot of tournaments where I have played 36 holes in a day. I've also played a couple of tournaments in Asia so you get used to it, although I do not think I would want to do it every day.'
He flew out of the gate to start his second round with birdies at one and four, two holes he birdied in round one. Unfortunately for Tampion, he also bogeyed the same hole he bogeyed on Thursday, the par-4 sixth. He birdied the eighth to make the turn at 2-under-par 33.
Tampion got going early on during his back nine. He birdied the 10th, then two holes later birdied the par-3 12th. Tampion birdied the 14th to get to minus-8, and that's where he stayed thanks to four pars in his final four holes.
Tampion has made the cut in two of his three starts, but neither finish was terribly impressive. He took 60th at the Mastercard Masters, then tied for 56th at the South African Airways Open.
The finishes don't seem to matter to the rookie.
'I am having a ball to be honest,' said Tampion. 'I turned professional in November and this is my fourth event on the European Tour. I am looking forward to some successful years to come.'
Ilonen began on the back nine to start his second round, and birdied the 13th and 14th holes. He parred his last four on the front nine, then birdied the par-5 first.
He reached 9 under par for the championship thanks to a bogey at the par-4 fifth, but bogeyed the sixth to fall into a tie for the lead.
Jong-yul Suk (68), Chapchai Nirat (69), Young-woo Nam (69) and Guarav Ghei (69) are knotted in third place at 5-under-par 137.
Alexander Noren (69), Scott Strange (69) and Gareth Davies (67) share seventh place at minus-4.
Overnight leader Chawalit Plaphol struggled to a 3-over-par 74 on Friday and is part of a group tied for 10th place at 3-under-par 139.