For permits containing non-dutiable and non-controlled goods, companies may submit electronic amendments via TradeNet within the permit's validity period. Some permit fields cannot be amended if controlled or dutiable goods are involved.

If amendment of the permit field is not allowed, you may wish to cancel the permit and obtain a new permit subject to the condition that the permit have not been utilised or expired.

If the permit field cannot be amended and the permit has been utilised or expired, you are advised to submit a voluntary disclosure to Singapore Customs.