Tea production in Bangladesh tea began in the Mulnicherra Estate in Sylhet in 1857. The Surma River Valley in the Sylhet region emerged as the centre of tea cultivation in Eastern Bengal. Plantations also flourished in Lower Tippera (modern Comilla) and Panchagarh which in North Bengal.Panchagarh is the only third tea zone in Bangladesh and most demanded teas cultivated here. Tea was a major export of British Bengal. The Assam Bengal Railway served as a lifeline for the industry, transporting tea from growers in the Surma and Brahmaputra Valleys to exporters in the Port of Chittagong. The Chittagong Tea Auction was established in 1949
Tea growing in Azerbaijan tea leaves (mainly black) was produced in Azerbaijan. In 1983, tea-growing in Azerbaijan spread to 9.3 thousand hectares area. However, with the collapse of the USSR, the tea production in Azerbaijan began to deteriorate. Moreover, in the 1990s, Nagorno-Karabakh conflict had an extremely adverse impact on tea production — the volume of tea production dropped to 1,200 tons by 1995. With the development of market relations in Azerbaijan, tea production began to revive, including through joint relations with Turkey and the United Arab Emirates. The tea produced in the country is mostly green, but black tea is also quite common