Table 1.
Product information of charcoal and agglomerated charcoal

Sample	Species	Raw material	Country of origin	Additives
A1	White charcoal 1	Oak	Vietnam	-
A2	White charcoal 2	Oak	Laos	-
A3	Black charcoal	Oak	South Korea	-
B1	Agglomerated charcoal with charcoal powder	undeclared	USA	Corn starch : 15%
				limestone : 7%
				borax : 1.5%
				barium nitrate : 0.1%
B2	Ignition-type of perforated charcoal	undeclared	South Korea	barium nitrate : 13%
				Wheat flour : 5%
				Sodium nitrate : 3.5%
B3	Agglomerated charcoal with sawdust	Broad-leaved tree	Indonesia	-