The term "Huian" used in Chinese industry have special meaning, so calling oil Cambodian Huian is true in a way looking at system used by Chinese.
Education time Lol.
In the Chinese etc school there is a system used to classify aroma in general
"There is another reasons like the port's used to send certain producing areas etc" ...with that in mind some put entire producing areas into 2 groups or 3 groups.
Hui'an series: Hui'an agarwood is famous for its "elegantness". Its fragrance is characterized by the duality of cool and sweet taste. The aroma has fruity or floral aroma and strong penetrating power. When you smell it, it feels like a thread-like taste. Mesmerizing.
Xingzhou series: Its aroma is mellow and restrained, slowly exuding from the inside out, and the fragrance is long-lasting. The biggest difference between the aroma of Xingzhou series agarwood and the Hui'an series is that it is sweet but rarely cool, and is mild when raw and flamboyant when mature. It feels like it tastes like a piece.
And those groups is ... 1-National Fragrance 2-Hui'an 3-Xingzhou
National Fragrance: Hainan, HK, Guangdong, Guangxi and Yunnan.
"those who group the producing areas with 2 category will put those under huian"
Hui'an Fragrance: Cambodia, Vietnam, Thailand, Burma, Laos, India etc
Xingzhou: Indonesia with its jungles, Brunei, Malaysia East/West, Srilanka and Philippines
"there is of course exceptions like Brunei etc they fit in huian group"
I'm not sure what you mean at the end. But sinensis (I think not 100% sure) also grows in Cambodia, and Vietnam. And I also believe, that sinensis and crassna have similar scent profiles, if I am not mistaken. I got the KZ's Dreams of Ancient Palace which was from an ancient Chinese Tang Dynasty Nerikoh recipe, turned into stick form and it has aloeswood in it 100% (even kangiiten told me it was a dominantly aloeswood stick but they couldnt tell me the species) but the first few times I lit it, it smelled quite similar to a Cambodian crassna, then I thought about it and was like, wait.... it is from a CHINESE Tang Dynasty recipe so it cant be crassna and must be very good wild sinensis of yesteryear... and the more I put a stick on the more I could pin point differences. But they smell very similar. Also, Hoi An is a place in Vietnam, I believe too. Maybe it's Hoi An?
At least according to many sources...Cambodia doesn't have Sinensis, it's mostly Crassna and some other species.
