‹ 18.2.1 Approval of Options for Listing or Quotation and Trading 18.2.3 Criteria for Approval of Underlying Securities › 18.2.2 Approval of Underlying Securities SGX-ST may from time to time approve underlying securities as being suitable for Options trading on SGX-ST. ‹ 18.2.1 Approval of Options for Listing or Quotation and Trading 18.2.3 Criteria for Approval of Underlying Securities ›