South32 has acquired the remaining 83% of the issued and outstanding shares in Arizona Mining for $1.3bn.
Arizona Mining’s shareholders received C$6.20 ($4.69) in cash for each common share currently held as part of the development.
The acquisition will add an additional base metal project to South32’s portfolio.
Australia-based South32 is a mining and metals company, while Arizona Mining is a Canadian mineral exploration firm.
OZ Minerals has acquired all the outstanding shares in Avanco Resources for A$418m ($323.2m) as part of a compulsory acquisition.
The takeover bid was originally initiated in March and includes a cash payment of A$0.085 ($0.066), as well as the issuance of 0.009 shares, to Avanco shareholders for each share currently held in the company.

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By GlobalDataOZ Minerals’ Brazilian subsidiary carried out the acquisition as part of the company’s multi-asset, province-focused growth strategy.
The transaction is also expected to offer significant additional growth options within the region.
Australia-based OZ Minerals is a modern mining firm that primarily focuses on copper, while Avanco Resources is a Brazilian mineral exploration and development company.
Osisko Mining has signed a definitive agreement to acquire all the issued and outstanding common shares in Beaufield Resources under a statutory plan of arrangement.
Beaufield shareholders will receive 0.0482 of a common share in Osisko in exchange for each share currently held as part of the deal.
Osisko Mining is engaged in the mining of precious-metals, while Beaufield Resources is focused on mineral exploration.
Both companies involved in the transaction are based in Canada.
Sociedad Química y Minera de Chile (SQM) subsidiary SQM Potasio has entered an agreement with a subsidiary of Jiangxi Ganfeng Lithium (GFL) to sell its entire stake in Minera Exar for $87.5m.
Minera Exar is the holding company of the Caucharí-Olaroz lithium brine project and was originally formed in partnership with Lithium Americas.
Lithium Americas is set to increase its share in Exar from 50% to 62.5% following the transaction, while Ganfeng will retain the remaining 37.5% interest.
GFL also agreed to provide Lithium Americas with a new $100m unsecured, limited recourse, subordinated loan facility for the development of the Caucharí-Olaroz lithium brine project as part of the arrangement.
Chile-based SQM is the world’s biggest lithium producer, while GFL is one of the largest lithium product manufacturers in China.
Lithium Americas is a Canada-based company focused on the development of the Caucharí-Olaroz lithium brine project.