Our Joss Powder is made completely from red bark,  green bark and leave of Litsea Glutinosa tree in the central Highland of Vietnam. Depend on the percentage of green bark,  red bark and leaf, Joss Powder has different quality and there are different names. 
 
With us, the kind of Joss Powder: the bad is 3cup, the best is *4cup. The Joss Powder of *4cup (highest quality) are made from pure red bark. Below table is features and terms of joss powder for your kind reference.
 

Appearance	Powder
Color	Bright Brown
Odour	Faint Aroma
Raw material	Cortex of stark / No Chemicals
Use	for making incense, Mosquito Coil
Density (g/ml)	0.***0.*7
Mesh Size *0(%)	Min *5.*0
Water Content	****3%
Kinds	3 Cups -> *4 Cups
Viscosity  (by Viscometer LVT)	depend on each kind of joss powder
Packing	*0kgs/ PP bag, juter bag
MOQ	1x*0'DC (****8MTs)
Delivery time	1 - 3 weeks
Payment term	L/C, D/P, T/T