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Boliden Tara

Europe's largest zinc mine

Tara in Ireland is Europe's largest zinc mine and also one of the largest in a global comparison. Since mining began in 1977, more than 85 million tonnes of ore have been extracted. Boliden acquired the mine in 2004.

Thanks to exploration and acquisitions, the mineral reserve and mineral resources have grown continuously. In recent years, Tara has focused on improving its cost position through productivity enhancing investments and savings measures. Around 2 million tonnes of ore are mined annually for the production of zinc and lead concentrates. 

In July, 2023, the mine was placed under care and maintenance and remained so at the end of the year.  

Tara in figures

  • Established: 1977
  • Acquired: 2004
  • Operating profit : SEK -571 m (2023)
  • Number of employees: 75 (2023 – average FTE figure affected by temporary furlough of employees as the mine was placed under care and maintenance from July onwards)
  • Type of mine: underground
  • Mine depth: 1,000 metres

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Boliden Tara production

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Boliden Tara

Navan, Co. Meath, IRE-Knockumber


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Tara History

Tara Exploration & Development Co. Ltd. began its search for mineral deposits in Ireland in 1962 and a major breakthrough was made in 1970 when a shallow soil geochemical survey near Navan Co.

Meath showed very high concentrations of both zinc and lead. An extensive drilling program indicated an orebody of almost 70 million tonnes at a grade of 10.1% zinc and 2.6% lead. Tara had discovered the biggest zinc/lead deposit in Europe. Development of the orebody began in 1973 and production started in June 1977.


Boliden Head Office

Boliden Group
Klarabergsviadukten 90
P.O. Box 44, SE-101 20 Stockholm
Tel: + 46 8 610 15 00
Fax: + 46 8 654 80 90