Materion Corporation, through with its subsidiaries, produces advanced engineered materials used in semiconductor, industrial, aerospace and defense, automotive, energy, consumer electronics, and telecom and data center in the United States, Asia, Europe, and internationally.

IperionX Limited engages in the exploration and development of mineral properties. It explores for epithermal and replacement style precious and base metal mineralization, as well as titanium, rare earth elements, silica sand, and zircon minerals.

Nexa Resources S.A., together with its subsidiaries, engages in the zinc mining and smelting business. The company also produces zinc, silver, gold, copper cement, lead, sulfuric acid, sulfur dioxide, copper sulfate, and limestone deposits.

Nouveau Monde Graphite Inc. engages in the acquisition, exploration, development, and evaluation of mineral properties in Canada. It primarily explores for graphite.

Sigma Lithium Corporation engages in the exploration and development of lithium deposits in Brazil. It holds 100% interest in the Grota do Cirilo, Genipapo, Santa Clara, and São José properties comprising 27 mineral rights covering an area of approximately 191 square kilometers located in the Araçuaí and Itinga regions of the state of Minas Gerais, Brazil.

Lithium Americas Corp. operates as a resource company in the United States and Argentina. The company explores for lithium deposits. It owns interests in the Cauchari-Olaroz project located in Jujuy province of Argentina; Thacker Pass project located in north-western Nevada; and Pastos Grandes project located in the Salta province of Argentina.

Piedmont Lithium Inc., an exploration stage company, engages in the exploration and development of resource projects in the United States. The company primarily holds a 100% interest in the Carolina Lithium Project that include an area of approximately 3,116 acres located within the Carolina Tin-Spodumene Belt situated to the west of Charlotte, North Carolina in the United States.