When someone has decided to register a .sg domain, he or she wants a local awareness and a local presence. So far, high chance is a local business or a company
Because .sg domain costs more than a gTLD like .com and .net domain. Hence, it is very rare to see individuals register a .sg domain unless during its NDP promotion falls on the month of August
If you are registering a .com.sg domain, you need a registered business or company in Singapore. The admin must be a Singaporean or a permanent resident of Singapore.
For .sg domain, the registrant must be a Singaporean or a permanent resident of Singapore. Both types of domain registration require the admin to validate the newly registered domain using SingPass at VerifiedID website.
Basically, there is no different to host a website using the type of TLD domain. The TLD extension is purely for identification purpose, it will not expect speed degradation that some have asked. The speed of the website depends on the webserver and how far are you from the webserver.
You might have paid little for a .sg domain during the promotion. However, you are paying a usual price during renewal. Dot sg domain like others it is renewed annually, and up to 2 years.