Liban, I said SOME not all. And from a very good friend of mind who does work with many different environmental agencies.
'Agarwood oil, also known as Oud, Aloeswood or Eagleswood, is an extremely rare and precious oil that originates in North Eastern India, Bhutan and parts of South East Asia, especially Vietnam and Cambodia. Agarwood has a very long history of use as a medicine, incense and as an aromatic oil. In the Bible it is known as aloes or aloeswood. There are several species of Agarwood, the most important species are: Aquilaria agollocha, A. malaccensis and A. crassna.
Aquilaria malaccensis is endangered and protected worldwide under the CITES convention and A. crassna is listed as endangered by the Vietnamese government. '
From a website which actually sells these products!
You can also visit:
http://forestpathology.coafes.umn.edu/agarwood.htm
Which is a website about using sustainable foresty resources instead of just hacking down trees around the world until there aren't any left.