Annual Report 2017

143 As at 31 December 2017 and 2016, the details of investments for which margin deposits were placed by members amounting to Baht 13,397.89 million and Baht 10,159.97 million, respectively are as follows: Consolidated 2017 2016 Savings and fixed deposit accounts 12,853,973 9,598,086 Savings account in foreign currency 488,319 519,744 Accrued benefits 55,593 42,138 13,397,885 10,159,968 (Unit: Baht’000) As at 31 December 2017, savings account in foreign currency of USD 15.02 million (2016: USD 14.57 million) was translated into Thai Baht using the average transfer buying rate announced by the Bank of Thailand at the end of the accounting period. The Group presented margin deposits placed by members separately in the account “Assets for margin deposits and benefits” in current assets in the statement of financial position and presented liabilities in the same amount in the account “Margin deposits and benefits payable” in current liabilities in the statement of financial position. 19. Assets for clearing systemprotection and benefits The assets for clearing system protection are established to secure the clearing system of Thailand Clearing House Co., Ltd. (TCH) against any damage caused by defaults by members or other incidents. Assets for clearing system protection comprise of 2 categories as the following: 19.1 Securities Deposit Members of TCH are required to place a Securities Deposit according to the announcement made by TCH (the current Securities Deposit for members, who are allowed to clear all types of derivatives, is not less than Baht 5 million and for only one type of derivatives is not less than Baht 4 million). TCH will invest the proceeds from the Securities Deposit and return any benefits derived from the Securities Deposit, after deducting management fees, to members in accordance with the announced rates and procedures. Assets held as Securities Deposit will be returned to members after their membership is terminated. 19.2Clearing fund contributions comprising contributions from: (1) The SET amounting to Baht 100 million (2) Members of TCH: - Initial contributions according to the announced rates (currently the initial contribution members, who are allowed to clear all types of derivatives, are not less than Baht 5 million and for only one type of derivatives is not less than Baht 1 million). - Monthly contributions at a value of not less than Baht 1,000. Securities Deposit and benefits are the right of the payers according to the proportion of their contributions. When the membership is terminated, the member’s Securities Deposit and benefits on contributions will be returned.