Credit: OCSiAl
On Tuesday 11 November 2025, OCSiAl, a Luxembourg-based deep-tech company specialising in graphene nanotube technologies, announced the launch of a new graphene nanotube manufacturing hub in Differdange, expected to become the world’s largest production facility.
OCSiAl reported the signing of a long-term land lease for a 3.63-hectare site in Differdange with the State of Luxembourg, which it said sums up years of effort by the company and the Luxembourg Government, including a recent investment round raised from a “club” of Luxembourg-based investors.
Lex Delles, Luxembourg’s Minister of the Economy, SMEs, Energy and Tourism, commented: “The launch of this future production centre in Differdange perfectly illustrates our ambition to position Luxembourg as a key player in industrial innovation in Europe. This major investment in graphene nanotubes demonstrates investors’ confidence in our ecosystem and highlights the potential of our business parks to host high-tech industrial projects. We are proud to support OCSiAl in this strategic step, which will contribute to the creation of skilled jobs, the reputation of Luxembourg in deep-tech and the transition to a more sustainable and competitive industry.”
Gilles Roth, Luxembourg’s Minister of Finance, added: “OCSiAl’s investment highlights Luxembourg’s role as a platform for long-term innovation and smart industrial development. This project reflects the value of combining private sector vision with public infrastructure support.”
Founded in Luxembourg in 2010, OCSiAl describes itself as the world’s largest producer of graphene nanotubes. It is currently manufacturing in Serbia, where production capacity is reportedly being increased fourfold. The company added that its nanotubes are used in more than 10% of smartphones sold today and in over one million electric vehicles worldwide.
“Graphene nanotubes can improve over half of the materials we use every day, from safer batteries to longer-lasting tyres and ultralight protective equipment,” said Alain Kinsch, a member of the OCSiAl Board of Directors. He also thanked the Luxembourg Government for its support.
With a planned investment of $300 million and the creation of over 300 new jobs, the facility, to be launched in stages from 2028 to 2030, aims to strengthen Europe’s role in the global advanced materials value chain and serve as a development hub for the next generation of engineers and scientists.
EO
