Thiess Indonesia – a wholly-owned Leighton subsidiary – was last week awarded a $US1.2 billion ($A1.83 billion) contract extension for the operation of the Senakin and Satui Coal mines in South Kalimantan, Indonesia.
The new contract covers both mines and includes an additional seven-year period.
Thiess has been operating Senakin since 1989 and Satui since 1998.
Leighton Asia, meanwhile, has picked up a $A350 million, six-year mining contract at the Ukhaakhudang mine in Mongolia.
The contract will start in March this year and includes overburden removal and coal mining.
Shares in Leighton closed on Friday at $18.35 and fell to $18.21 this morning.
