Calderys

Calderys
Company typePrivate
IndustryRefractory
Founded2005
HeadquartersParis, France
Area served
Worldwide
Key people
Michel Cornelissen (President and CEO)[1]
Number of employees
4.500 (excluding contractors)
Websitecalderys.com

Calderys is a privately owned company of refractory solutions headquartered in Paris, France. It resulted from the merger of the refractory companies Plibrico and Lafarge Réfractaires in 2005, and combined its operations with HarbisonWalker International (HWI) in 2023.

History

Origins

William A.L. Schaefer, in 1914, developed the first monolithic refractory and created the Pliable Firebrick Company, which is also known as Plibrico. Plibrico developed its presence throughout Europe from 1930 to 1960, and was acquired by the group Imetal (future Imerys) in 1996.[2]

Since the start of the 20th century, the Lafarge company has been developing refactory solutions.[2] During the 1970s, Lafarge became France's leading refractory manufacturer. In 1980, Lafarge officially created Lafarge Réfractaires after its acquisition of the Belgian refractory company Groupe Coppée.[3] In 2001, Lafarge created the company Materis to divest its building materials division, including Lafarge Réfractaires.[4] In 2004, Imerys acquired Lafarge Réfractaires from Materis for 130 million euros.[5][6]

2005: Calderys

In 2005, Imerys merged Plibrico and Lafarge Réfractaires to create Calderys.[7] Imerys pursued Calderys' global expansion with acquisitions such as ACE Refractories in India in 2007,[8][9] Svenska Silikaverken AB and Valöns in Sweden in 2008,[10] PT Indoporlen in Indonesia in 2013,[11] S&B in 2015,[12] and Kerneos in 2017.[13]

In 2023, Imerys sold Calderys to a US private investment firm for 930 million euros.[14] After the acquisition, Calderys became a standalone company.[15] The fund also acquired HarbisonWalker International (HWI) and combined its operations with Calderys.[16]

Activities

Calderys is a refractory solutions provider headquartered in Paris, France. The company manufactures and distributes high temperature solutions, from refractories to casting fluxes and molding solutions. It operates 50 production sites in 30 countries (2025).[2] Since 2023, the company combined its operations with HWI which became Calderys' brand for the Americas region.[16] Michel Cornelissen has been President and CEO of Calderys, including HWI, since February 2023.[1]

References

  1. ^ a b Calderys and HarbisonWalker International appoint joint CEO, Cemnet.com, 21 February 2023
  2. ^ a b c "About Calderys". calderys.com. Retrieved 2025-05-31.
  3. ^ Barjot, Dominique (2005). "Lafarge : l'ascension d'une multinationale à la française (1833-2005)". Relations internationales (in French). 124 (4): 51–67. doi:10.3917/ri.124.0051. ISSN 0335-2013.
  4. ^ "Lafarge: Materis restructuring". International Cement Review. 24 September 2003. Retrieved 2025-08-22.
  5. ^ Lucas, Thierry (2004-11-18). "Des réfractaires pour Imerys". L'Usine Nouvelle (in French).
  6. ^ "Imerys : acquisition de Lafarge Réfractaires Monolithiques". Boursier.com. 9 November 2004. Retrieved 2025-08-22.
  7. ^ Kanga, Yao (September 2010). "Controlled release of isothiazoline biocides from industrial minerals" (PDF). The University of Birmingham. Retrieved 2025-05-31.
  8. ^ "ICICI Venture sells Ace Refractories to Imerys". The Times Of India.
  9. ^ "French firm buys ACE Refractories". Business Standard India. 2 August 2007.
  10. ^ "Köp säkrar råvarutillgången för 25 år framåt" (in Swedish). Archived from the original on 2013-04-18.
  11. ^ ""Calderys announces Indonesian joint venture", International Cement Review (Aug. 2013)". 2 August 2013.
  12. ^ O'Driscoll, Mike (2015-03-06). "Imerys seals S&B acquisition: so what does it mean?". Industrial Minerals Networking | IMFORMED. Retrieved 2025-08-22.
  13. ^ Kinch, Diang (23 February 2017). "Refractories in steelmaking: still a buyers' market" (PDF). Metal Insights. Retrieved 2025-05-31.
  14. ^ "Platinum Equity completes acquisition of Calderys". www.globalcement.com. 2023-02-01. Retrieved 2025-05-31.
  15. ^ "Calderys becomes standalone company". www.moderncasting.com. 2023-02-28. Retrieved 2025-05-31.
  16. ^ a b Bizley, David (2023-02-21). "Calderys to combine with HarbisonWalker International". World Cement. Retrieved 2025-05-31.
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