I am doing some research in conjunction with one of my passions which is woodcraft. After examining some of the finishes I might use I came upon a little history of Tung Oil and Tea. At one time China was the only country that had Tung trees to produce the nut which Tung Oil was made, and were also a major exporter of tea, both of which Great Britain had a major use for. Two major conflicts arose between China and Great Britain. One dating from 1839-1842 and the other from 1856-1860. It seems, according to my research, that the powers that were in Great Britain didn't want to pay cold hard cash for either Tung oil or Tea but would rather trade Opium for the Chinese products which is how the conflicts started. After much loss of life on both sides, the British finally won and got the tea and the tung oil while like it or not the Chinese got Opium and missionaries. I knew tea was important to the British, but come on guys, 3 wars over the stuff? Now, if it were over coffee, I can understand that one completely. There's only so much a person can take. No coffee? No work.