thumb|right|The Old Parliament Building, Bank of Ceylon building and WTC twin towers in the Colombo financial district of Fort The Colombo Metropolitan area has a GDP (PPP) of $122 billion or 40% of the GDP, making it the most important aspect of the Sri Lankan economy. The per capita income of the Colombo Metro area stood at US$8623 and purchasing power per capita of $25,117, making it one of the most prosperous regions in South Asia. The Colombo Metropolitan (CM) area is the most important industrial, commercial and administrative centre in Sri Lanka. A major share of the country's export-oriented manufacturing takes place in the CM area, which is the engine of growth for Sri Lanka.
thumb|right|The Old Parliament Building, Bank of Ceylon building and WTC twin towers in the Colombo financial district of Fort The Colombo Metropolitan area has a GDP (PPP) of $122 billion or 40% of the GDP, making it the most important aspect of the Sri Lankan economy. The per capita income of the Colombo Metro area stood at US$8623 and purchasing power per capita of $25117, making it one of the most prosperous regions in South Asia. The Colombo Metropolitan (CM) area is the most important industrial, commercial and administrative centre in Sri Lanka. A major share of the country's export-oriented manufacturing takes place in the CM area, which is the engine of growth for Sri Lanka.