Treaty of Tientsin
After the Treaty of Tientsin was ratified in 1860 and the port of Tamsui was opened for trade, Scottish entrepreneur John Dodd began working with tea merchants and farmers to promote Taiwanese tea, slowly developing it as an export item. Before long, tea ranked first among Taiwan's top three exports, ahead of sugar and camphor. The earliest teas exported during the Qing dynasty were oolong and baozhong tea, which began to be sold abroad in 1865 and 1881, respectively.