August 1955
Mr. Lian-Jhai Li
August 1968
Mr. Yie-Ping Wang
October 1973
Mr. Ji-Yang Sia
August 1978
Mr. Chang-Ping Shan
August 1984
Mr. Hui-Chuan Hsu
August 1992
Mr. Jin-Song Liao
August 1995
Mr. Sheng-Yuan Su
August 2003
Mrs. Shu-Fang Wu
August 2010
Mr. Lian-Rong Yin
August 2013
Mr. Wun-Cin Lo
August 2018
Mr. Ke-Zhi Hsien