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The phenomenon of superconductivity has been long known since its first discovery in 1912 at the laboratory of Heike Kamerlingh Onnes, University of Leiden – the Netherlands. Through the long period of up and down developments, various superconducting materials have finally reached their functional technological applications. Cu-Nb3Sn superconductor wire has been considered as low temperature superconductors (LTS) since its critical temperature is far below 77 K which is the boiling point of nitrogen. The popular applications of Cu-Nb3Sn wire include magnetic resonance imaging (MRI), nuclear magnetic resonance (NMR), as well as potential magnetic levitation vehicle. Medical observation using MRI has progressively become the need for many people regardless of their economic background or social status. The problem rises when the investment value on buying MRI device is compensated with the expensive medical check-up fee. There is then an urgency to develop LTS wire whose cost (including cryogenic system) constitutes about 60 persen of the total cost of manufacturing MRI system. As the nanotechnology becomes globally significant, its implementation on superconducting material has also come into consideration. This paper discusses the state of the art of low temperature superconductor Cu-Nb3Sn including what the author has been conducting so far in the field of research and development. The potential processing route for developing nano-structured Cu-Nb3Sn superconductor wire will also be presented. According to the Consortium of European Companies Determined to Use Superconductivity (CONECTUS), the global market of LTS wire predictably reaches the value of 4,600 million Euros in the year 2013. This paper also brings up the potential future market for the Indonesian superconductor wires, especially Cu-Nb3Sn, and how to penetrate the international market networks. Above all, the driving force to develop nano-structured Cu-Nb3Sn LTS wires in Indonesia is to bring forward the competitive advantages over the comparative advantages by giving techno-economical added values for abundant mineral resources as well as increasing the capacity of national industries.