.com.sg is a country code second-level domain

Country code second-level domain

A country code second-level domain is a second-level domain to a country code top-level domain. A ccSLD may be reserved by the domain name registry for the registration of third-level domains or assigned to a third party as a subdomain....

 (ccSLD) in the .sg

.sg

.sg is the Internet country code top-level domain for Singapore. It is administered by the Singapore Network Information Centre. Registrations are processed via accredited registrars....

 namespace, and is administered by the Singapore Network Information Centre

Singapore Network Information Centre

Singapore Network Information Centre is the National Internet Registry for Singapore. It manages the .sg top level domain.Formed in October 1995, the SGNIC took over the operation of Domain Name Registration Services in November 1995...

. Only companies with commercial interests and which are registered with the Registry of Companies and Businesses, IE Singapore or any professional body in Singapore

Singapore

Singapore , officially the Republic of Singapore, is a Southeast Asian city-state off the southern tip of the Malay Peninsula, north of the equator. An island country made up of 63 islands, it is separated from Malaysia by the Straits of Johor to its north and from Indonesia's Riau Islands by the...

. A foreign company may register if it has a Singaporean representative registered in any of the above organisations.