s 11 General effect of certain foreign judgments
11.—(1) Subject to this section, a judgment to which Part 1 applies or would have applied if a sum of money had been payable thereunder, whether or not it can be or is registered, shall be recognised in any court in Singapore as conclusive between the parties thereto in all proceedings founded on the same cause of action and may be relied on by way of defence or counterclaim in any such proceedings. (2) This section shall not apply in the case of any judgment —(a) where the judgment has been registered and the registration thereof has been set aside on some ground other than —(i) that a sum of money was not payable under the judgment; (ii) that the judgment had been wholly or partly satisfied; or (iii) that at the date of the application the judgment could not be enforced in the country of the original court; or[Act 25 of 2021 wef 01/04/2022] (b) where the judgment has not been registered, it is shown (whether it could have been registered or not) that if it had been registered the registration thereof would have been set aside on an application for that purpose on some ground other than one of the grounds specified in paragraph (a). (3) Nothing in this section shall be taken to prevent any court in Singapore recognising any judgment as conclusive of any matter of law or fact decided therein if that judgment would have been so recognised before 21 March 1959.