Patrombon, who replaced Francis Casey Alcantara in this first reverse singles, lost his composure after yielding in the second frame to give the Taiwanese a 3-1 tie win.
With Patrombon’s loss, the second reverse singles pitting Ruben Gonzales and Huang Liang-Chi were not played.
Patrombon, a former top local junior netter who currently trains in a tennis academy in Taiwan, appeared playing flawless at the start of the match until Chen managed to crawl back by winning five straight games for a 6-5 lead in the second frame.