The Taiwan Fair Trade Commission (“TFTC”) promulgated the Guidelines on March 6, 2015, the highlights of which are  summarized  as follows: (1) the TFTC will mainly consider the demand­ side substitutability in determining the scope of the relevant market, and may also consider the supply­side substitutability   depending   on   the characteristics   of particular goods or services; (2) the TFTC will define the relevant market in both its product and geographic dimensions; yet the time horizon may also be considered, as the case may be; (3) when it comes to the market definition of a particular industry, the TFTC may make reference to the opinion of the competent authority of that industry as well.