Up-to-date, there are a total of 21 Aquilaria species recognized and have been recorded and out of these 21 species only 9 to 13 species are reportedly fragrant resin producers, and the status of the remaining species are yet to be investigated and only 3 species are commercially cultivated.
The high demand for quality Agarwood in conjunction with the depletion of the wild Aquilaria trees implied that the price of the agarwood will continue to soar. As an alternative, mass cultivation and large plantation of Aquilaria trees which serve as a sustainable source to obtain agarwood will greatly resolve the shortage of agarwood supply in the global market soon.