Cobalt

Colour Group: Brun Base, Pearl, and Rouille
Rarity: Unnatural
Importable?: Yes

Zinc

Colour Group: Brun Base, Cream, and Rouille
Rarity: Unnatural
Importable?: Yes

Classic Fraise

Colour Group: Bonbon, Brun Base, and Classic Bonbon
Rarity: Special
Importable?: Yes - Special tier

Enoki

Colour Group: Brun Base, Classic Peach, Cream, Modern Peach, Mushroom, Noir Base, Peach, and Rouge Base
Rarity: Natural
Importable?: Yes

Champignon

Colour Group: Brun Base, Classic Peach, Cream, Modern Peach, Mushroom, Noir Base, Peach, and Rouge Base
Rarity: Natural
Importable?: Yes