[4] The humidity, cool temperatures, and rainfall of the country's central highlands provide a climate that favors the production of high-quality tea.
Most of Sri Lanka's export market is in the Middle East and Europe but there are also plenty of bidders worldwide for its specialty high-country-grown Nuwara Eliya teas.
The 1871 demographic distribution and population in the plantation areas are given below:[13]Registered tea production in hectares and total square miles by elevation category in Sri Lanka, 1959–2000:[13]
The most important foreign markets for Sri Lankan tea are the former Soviet bloc countries of the CIS, the United Arab Emirates, Russia, Syria, Turkey, Iran, Saudi Arabia, Iraq, UK, Egypt, Libya and Japan.
It is at present the only national body in the country that generates and disseminates new research and technology related to the processing and cultivation of tea.
This landmark study was possible because the population of tea labourers were known to have never employed any conventional oral hygiene measures, thereby providing some insight into the natural history of periodontal disease in man.
Among the international organisations that operate within Sri Lanka are Rainforest Alliance, Fairtrade, UTZ Certified, and Ethical Tea Partnership.