Summer is a little more than a month away in the Southern Hemisphere, so perhaps it’s not surprising that deal work is heating up Down Under.

In a pair of major transactions announced Monday, the Singapore and Australian stock exchanges unveiled plans for an $8.3 billion merger, while leading Canadian-Australian copper miner Equinox Minerals agreed to acquire Australia’s Citadel Resource Group for $1.2 billion. A total of seven firms landed lead legal advisory roles on the two deals.