The Hague System is an international registration system that is administered by the International Bureau of the World Intellectual Property Organization (WIPO) in Switzerland.
Singapore is a Hague Union member and can therefore participate in the international registration system facilitated by the Hague System.
A list of countries which are members of the Hague Union can be accessed here.
Benefits of the Hague System
You can use the Hague System to file a single international application instead of having to file individually to each countries’ IP office.
This means that you can enjoy the convenience of filing design protection in several countries simultaneously through one application with the International Bureau of WIPO, in one language, and by paying one set of fees in one currency (Swiss francs).