Global hospitality company Carlson has unveiled plans to expand its portfolio of hotels in Asia Pacific to 100 hotels by 2015.

The chain plans to rebrand Radisson hotels in operation to Radisson Blu.

A total of 40 properties are contracted to open by 2013. This includes ten resorts in India, China, Thailand, Australia and the South Pacific.

The company also announced the launch in Asia Pacific of Radisson Blu, the upscale tier of the Radisson brand.