SGX-ST may cancel a contract in any of the following circumstances:

(a) if the contract arises from an Error Trade (as defined in Rule 11.2.1) and:
(i) the Trading Members to the contract agree to the cancellation; or
(ii) SGX-ST is satisfied that the contract should be cancelled;
(b) the contract arises from a Trade at Close and subsequent to the trade, SGX-ST:
(i) invalidates the Closing Auction Price on which the trade is based; or
(ii) determines an alternate closing price for the security;
(c) if there is prima facie evidence of fraud or wilful misrepresentation in relation to the contract; or
(d) 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.

Added on 3 June 20193 June 2019 and 3 June 20193 June 2019.