The Taiwan Futures Exchange (TAIFEX) system for central clearing of OTC derivatives requires that when TAIFEX handles central clearing operations for trading by overseas Chinese and foreign nationals in NT Dollar-denominated domestic OTC derivatives, variation margins and mark-to-market gains and losses must be collected in NT Dollars, and the amount shall be calculated in accordance with the ruling on Article 4, Paragraph 2 of the "Regulations Governing Investment in Securities by Overseas Chinese and Foreign Nationals," which is issued by the FSC on 28 March 2022, and shall not exceed 30% of the funds remitted by them.