Over time, as the battle between the tree and the fungus rages, the heartwood is saturated with this fragrant resin and becomes dense and dark. Now it is known as Agarwood, and has been highly ...

First-grade agarwood can cost as much as $100,000 per kilogram, making it one of the most expensive raw materials in the world. But for this tree to produce any agarwood, it must first become ...