On December 27, 2017, the Cabinet Order to Specify the Enforcement Date of the Amendment to the Financial Instruments and Exchange Act ("Amendment") was promulgated. As a result, the Amendment will come into force on April 1, 2018. The Amendment will: (i) introduce the fair disclosure rule; (ii) introduce a registration requirement for high-frequency trading companies; and (iii) relax regulations on the permitted scope of business for the corporate groups of stock exchanges and other financial instrument exchanges.