Article 4 of the Paris Convention relates to the right of priority. If you have filed an application for the registration of a design in a Convention country, you may claim a right of priority for the registration of the same design when filing the subsequent application in another Convention country.

If a right of priority is claimed, you will have priority from (and including) the date on which the first Convention application was filed. Hence, the subsequent application is treated, for the purposes of determining whether that design is new, as filed on the date on which the first Convention application was filed.

The subsequent application and claim of priority must be made within 6 months after the date on which the first Convention application is filed.

Yes, IPOS will permit amendments to the application if the proposed amendment does not substantially alter the overall appearance of the design or widen the scope of the rights. To lodge an amendment, you should file Designs Form D5 together with the prescribed fee. 

You may apply to surrender a registered design by filing Form CM3 at no costs. 

Yes. As with other forms of IP, a registered design is a right that can be assigned or licensed to another party.
An application to register such transactions with the Registry shall be made via Form CM6 (Application to register, amend or terminate licence), or Form CM8 (Application to an assignment of a registered design or any right in it) together with the prescribed fees.

You have to file Designs Form D3 together with the prescribed fee. Foreign applicants are required to provide an address for service in Singapore when filling up Form D3. Please file the form online via IPOS Digital Hub.