The additional works are expected to generate revenues over a period of 42 months.
The latest award follows AMS’ previous $223m three-year contract signed with Perseus in April last year for the provision of open pit mining services at the Edikan mine.
Mining at Edikan is set to begin in September this year.
Under the terms of the contract, AMS will be responsible for drilling, blasting, load and haul operations at Perseus’ Esuajah North pits.
AMS will source the necessary equipment to perform the works primarily from its existing fleet, and thus reduce the requirement for any additional investment.
The company plans to employ a team of up to 280 to perform the project.
Ausdrill managing director Ron Sayers said: “AMS has been providing mining services to Perseus since 2011 and we are delighted to extend the relationship we have developed.
“The award of this contract clearly demonstrates the capability of AMS to continue to deliver quality and cost effective mining services to our clients.”
AMS has been providing mining services to Perseus since 2011.
Ausdrill, which has operations across Australia, Africa and the UK, provides services in contract mining, grade control, drill & blast, exploration, mineral analysis, procurement & logistics and manufacturing.