SGX-ST may cancel a contract in any of the following circumstances:—
(1) the Trading Members to an error trade (Rule 8.6) have agreed to the cancellation;
(2) if a material mistake led to the error trade (Rule 8.6) and SGX-ST is satisfied that the trade should be cancelled;
(3) there is prima facie evidence of fraud or wilful misrepresentation in relation to the contract; or
(4) in SGX-ST's opinion, it is desirable to cancel the contract to protect the financial integrity, reputation or interests of the markets established or operated by SGX-ST.