Chances then proved harder to come by for the rest of the match but the boot of Nayler was again needed to prevent China extending their lead while New Zealand went agonisingly close to equalising late on, Paige Satchell bursting onto a pass from fellow substitute Nicole Stratford but steering her effort narrowly wide.
The Ferns then threw caution to the wind as the match entered stoppage time and were hit by a cruel sucker punch, Shuang breaking out of New Zealand's high press and dinking the ball past a well-advanced Erin Nayler, who had pushed forward to support the attack as New Zealand searched for an equaliser.
That gave China a flattering final scoreline as Sermanni was left to reflect on an otherwise highly-satisfying outing.
"I'm gutted by the result to be honest because I thought it was an outstanding performance," he said.
"I felt we nullified China for most of the game and created the better chances. Until they scored the first goal, Erin hardly had a save to make and they didn't create a clear chance. We had a great chance to equalise and had to take a couple of risks at the end so I think 2-0 was a cruel result for the performance."
Among many positive aspects on the night were the senior international debuts of three players with Claudia Bunge handed a starting berth while Stratford and Jana Radosavljevic both appeared off the bench.
Bunge put in a player-of-the-match performance on her first appearance, showing composure beyond her years in an accomplished display.
"She looked like a seasoned pro, I don't think she put a foot wrong in the whole game," Sermanni said.
"I thought her decision-making was first class, she was comfortable on the ball and slotted in fantastically well. Jana and Stratty handled themselves really well too, it's not easy coming on for the last 15 or 20 minutes of a game like that," he added.
"So there were a lot of positives tonight – we had opportunities, got into good positions and played some really good football. We just didn't get the outcome that the performance merited."
The Football Ferns will now meet Canada in the third place play-off at the invitational tournament on Sunday from 9pm (NZT), there will be no television coverage or live streaming of the game.
Match Details
China 2 (Wang Shuang 62', 90 + 3')
New Zealand 0
HT: 0-0
New Zealand: 1. Erin Nayler (GK), 2. Ria Percival, 4. CJ Bott (5. Nicole Stratford 79'), 6. Rebekah Stott, 7. Ali Riley (c), 12. Betsy Hassett (11. Sarah Gregorius 79'), 13. Rosie White (9. Katie Rood 63'), 14. Katie Bowen (20. Jana Radosavljevic 70'), 17. Hannah Wilkinson (19. Paige Satchell 79'), 18. Stephanie Skilton, 24. Claudia Bunge
Substitutes not used: 10. Annalie Longo, 15. Sarah Morton, 16. Hannah Blake, 21. Victoria Esson (GK), 22. Olivia Chance, 23. Lily Alfeld (GK)
Caution: 2. Ria Percival 80'
Coach: Tom Sermanni