Jemna's headoffice resides in Brisbane, QLD, Australia servicing the Australiasian market.  The Director and staff have worked in the ground support industry for over 20 year.  Our Vision is to supply the Mining, Civil and Tunnelling market with innovative products & service, well experienced operators, certified training and measured advicewhilst safety is our primary focus.


Company Profile.

Jemna was formed when the Director with over 25 years of underground and construction  experience wanted to share his knowledge of all aspects of ground support and provide a shotcrete service above and beyond what was available in the marketplace.  


The underground industry was introduced to him in  1999 when he was a part of the shotcreting process of the Sydney Olympic Train Tunnel, which then grew to various other world renown tunnels in Sydney and Hong Kong.  Working in the construction industry for many years previous to that and numerous mining support roles since, gave him a well rounded knowledge of ground support in various industries ie. tunneling, mining, civil and residential, a knowledge few companies or individuals have across the board.

Jemna’s ground support specialty is shotcrete placement, the pneumatic spraying of designed concrete mix.  The designer concrete mix and how it is applied is the basis of the safety guarantee and longevity of large Roads and Resource Mining Projects that allows Australiasians to work under and use for up to a century.

For these reasons only well experienced operators and management should be sought.  Jemna Pty Ltd has that experience.


Jemna Pty Ltd

ABN: 96 156 351 683​

611 Gold Creek Road

Brookfield  QLD  4069


Tel: 617 210 35753

Mobile: 0477 350 384

email: info@jemna.com.au

Staff Experience.

​Ben Ferri, the Director of JEMNA Pty Ltd is a certified EFNARC shotcrete examiner and certified trainer backed by an RTO. 

Staff have been involved with projects large and small, ranging from most of Australia’s largest Underground Tunnels and Mines to Civil and Road Ground Support projects giving clients peace of mind.  Outlined below are just some projects that our staff have been involved in.


  • Cross River Rail, Brisbane

  • Cloncurry , Lake Cowal Mine, West Wyalong

  • Earnest Henry Mine, Mt Isa

  • North Connex Tunnel, Sydney

  • Legacy Way Tunnel, Brisbane.

  • Jimboomba road upgrade, Jimboomba

  • Sydney Olympic Train Tunnel, Sydney

  • Sydney Opera House VATS

  • T2E Pacific Highway upgrade and  Tunnel, Byron Bay.

  • Sydney Cable Tunnel, Sydney

  • Eastern Distributor Tunnel, Sydney

  • Cross City Tunnel, Sydney

  • Clem 7 Tunnel, Brisbane

  • Elgas Cavins, Sydney

  • MTR Tunnel, Hong Kong.

  • North Parkes Mine, Parkes

  • Carrapateena Mine, South Australia

  • Bruce Highway upgrade, Gympie

  • Mt Isa Mine, Mt Isa

  • Moranbah Mine, Queensland

  • Cadia Mine, Orange

  • Eldorado Mine, Gympie