Rio Tinto


South Gobi Desert, Mongolia


17 Years, onging

Scope of Work:

Shaft Sinking
Mine Development
Engineering and Technical
Underground Construction
Mass Excavation
Percussive Drilling

Redpath, through a joint venture agreement, is a major contractor at the Oyu Tolgoi mine, providing a range of services to the project since 2005. 

Most noteworthy at Oyu Tolgoi is the installation of the world’s largest friction hoist (6.75 m diameter). Sinking shafts 1, 2, and 5 remain Redpath’s most prolific shaft projects, with shaft 2 breaking Redpath’s record of largest shaft by volume with 124,248 m3 of rock removed in 2018.  

In addition to these services and milestones, Redpath provides mass excavation, mine construction and mine development services to this project.