Vale has approved the $US1.5 billion ($2.1 billion) Serra Sul 120 project in Brazil.
BHP has awarded Swick Mining Services with a five-year underground drilling contract at the Olympic Dam poly-metallic mine in South Australia.
Newcrest Mining has delivered lower gold production across its mines in Australia and Papua New Guinea.
Metro Mining has moved into its planned wet season shutdown at the Bauxite Hills mine in Queensland earlier than usual.
AECI Mining is strengthening its position in the global mining marketplace by integrating a new brand and increasing a focus on offering its customers more holistic solutions.