Global Advanced Metals
AMG
Materion
Taniobis (JX Nippon Mining & Metals)
Mitsui Kinzoku
Taki Chemical
MPIL
Solikamsk Magnesium Works
Ningxia Orient Tantalum
Jiujiang Tanbre
KING-TAN Tantalum
F&X Electro-Materials
Ximei Group