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
Argentine tea culture current status as the ninth largest tea-producer worldwide. Argentina is an important tea-producing nation, the world's ninth-largest tea producer as of 2005 with estimated annual production of 64,000 metric tons. The Argentine regions with the largest concentration of tea cultivation are the highlands of the Misiones and Corrientes provinces in northeastern Argentina, where the climate is hot and humid. The major plantations are on relatively flat land where highly mechanized production can occur. The growing season for tea is from November to May. Tea exports from Argentina total about 50 million kilograms annually. Argentine tea is primarily used for blending.