Industrial and commercial activities dominate Mangalore's economy. It is the only city in Karnataka to have all modes of transport — air, road, rail and sea. The fastest growing non metro (Indian city of population less than 1 million) in South India is Mangalore. Mangalore is the 2nd largest business centre in Karnataka. Around 75% of India's coffee, timber and cashew nuts exports are handled by the New Mangalore Port. Mangalore is one among the 5 cities in the country to have both a Major Port and an International Airport. Mangalore has some of the tallest buildings in South India, with many more under construction. Mangalore International Airport is among the 2 International Airports in Karnataka, along with Bangalore's Kempegowda International Airport.