At least some content in this article is derived from information featured in: Harry Potter: Puzzles & Spells.
A Non-Tradeable Material was an object that the Ministry of Magic did not allow the wizarding world to trade in. There were several classes of Non-Tradeable Material, and each object was assigned to a Class depending on its value or nature. Materials in the classes were usually of high value, or extremely dangerous, and trading them was strictly prohibited.
Known Class A Non-Tradeable Materials
Known Class C Non-Tradeable Materials
- Fantastic Beasts and Where to Find Them (First appearance)
- Harry Potter and the Order of the Phoenix
- Harry Potter: Puzzles & Spells (Mentioned only)