[2] He previously served as the Deputy Foreign Minister of Taiwan from September 2012 to January 2016.

[3][4] Ko obtained his bachelor's and master's degrees in diplomacy and public administration from National Chengchi University in 1975 and 1978, respectively.

However, Ko added that the ROC Ministry of Foreign Affairs will not mind for Honduras to have "unofficial" non-political relation with the PRC as long as the move doesn't affect the diplomatic relation with ROC.

[6] Commenting on the decision made by Gambia to switch diplomatic relations from ROC to PRC on 14 November 2013, Ko said that the ROC government felt shock and regret at the move, in which it made ROC being recognized by only 22 countries around the world, in which most of them are developing nations.

The move came in despite recent visit by President Ma Ying-jeou to the resource-poor nation in 2012 and also the USD 22 million fund donated to the nation for the construction of 42 km (26 mi)of road linking the western part of the country to the capital Banjul.