Singapore's Infocomm and Media development Authority (IMDA) has announced it will ban the sale of 2G-only mobile devices from January 1.
After this time, retailers and equipment suppliers will not be allowed to sell 2G handsets for use in Singapore, the regulator said.
Suppliers with a dealer's individual license will be able to continue selling the devices, but only for export purposes or overseas use.
The order applies to devices in the GSM900 and GSM1800 frequency bands, and covers other cellular devices besides handsets including POS terminals and M2M equipment. Retailers and suppliers found to be in violation of the new rules could face financial penalties.
Singapore's mobile operators will shut down their 2G networks from April 1 to allow IMDA to re-allocate spectrum for more advanced mobile services.
IMDA is working with operators to facilitate the migration of remaining 2G users to 3G or 4G networks, allowing subscribers to upgrade their devices while maintaining their plans and monthly subscription costs.
Singapore is on track to introducing a fourth mobile network operator. Last month, local fiber ISP MyRepublic and Australian fixed line operator TPG Telecom were pre-qualified to take part in a special auction for the fourth mobile license.