Use the Food Additives Search tool. Simply type in the name of the additive to see if it is permitted under SFA's Food Regulations.
Alternatively, you can download the Food Additives Permitted under the Singapore Food Regulations.

Always check your additives against the list before importing or selling the food product, to ensure that the additives used in the food product is permitted.
If your food product contains an additive that is not permitted, do not import or sell it. However, you can submit an application to SFA to evaluate the use of the additive in the product that you intend to import or sell. Detailed instructions can be found in the Guidance Information on Requirement for Food Additives.
Use of additives in Kuehs
Class II chemical preservatives, such as sorbic acid and benzoic acid, should not be directly added when manufacturing the kueh.
Class II chemical preservatives can only be directly added, within the prescribed regulatory limits, to fillings and toppings in kuehs. For example, you can directly add Class II chemical preservatives to the filling of ang ku kueh or kueh dadar within the regulatory
limits.
For details on the use of preservatives in kueh, download these slides: