Thailand tied with Vietnam for last place among 14 Asian countries and territories surveyed for the Cloud Readiness Index 2012, says the Asia Cloud Computing Association.
The study by the Asian-focused non-profit organisation showed Thailand and Vietnam had the lowest cloud preparedness among the 14 economies.
Thailand fell from 10th place in 2011.
The index tracks the development of required underlying infrastructure, data regulations and the investment environment for cloud computing across 14 leading Asian economies.
Thailand's political situation may have settled down, but infrastructure deficiencies remain, especially in terms of broadband connectivity and power grid stability.
While the country scored relatively high on "business investment environment" and "freedom of access to information", it ranked last in "data sovereignty" and "lack of legislation for data privacy protection".
The study suggested Thailand also needs to review its data privacy and sovereignty laws, which were the lowest-scoring indices.
Japan once again topped the rankings for cloud readiness, followed by South Korea, Hong Kong and Singapore.
It scored highest in the categories of "international connectivity" and "business environment".
The report said cloud computing has become an integral part of the knowledge economy in just a few short years and is certain to become one of the biggest drivers of economic growth over the next decade.
International Data Corporation, the global market research firm, forecasts cloud computing will create 14 million jobs worldwide by 2015 along with US$1.1 trillion in new business revenue.
However, Gp Capt Anudith Nakornthap, the information and communication technology minister, zeroed in on the fact that the index represents only 14 economies in Asia.
He insists Thailand is aggressively adopting cloud computing technology.
"Many government agencies in Thailand have already adopted cloud computing," said Gp Capt Anudith, adding that governments in some countries have yet to start implementing the system.
He said the Thai government has set up a cloud-based service centre by consolidating IT databases from different state agencies and charging users on a subscription basis, enabling users to lower IT investment costs.