Proxima Fusion, a German-based startup working on fusion energy, is focusing on the development of superconducting tape, a vital part of its fusion reactor design. Recently, the company announced plans to build a €140 million factory to produce high-temperature superconducting (HTS) tape, which is essential for generating the powerful magnetic fields needed to contain plasma in fusion reactions. This project follows a major funding round in which Proxima secured €411 million, making it one of the best-funded fusion companies globally. The factory will be supported by a mix of public and private funding, including a €21 million contribution from the state of Lower Saxony in Germany. The HTS tape is a key material in modern fusion reactor designs because it can conduct electricity without resistance at relatively high temperatures—much higher than traditional superconductors. This property allows for more compact and efficient reactor systems. Proxima’s demonstration plant will require 20,000 kilometers of HTS tape, and its full-scale commercial power plant will need twice that amount. Currently, most of the world’s HTS tape is manufactured in China and Japan, highlighting the importance of Proxima’s effort to establish local production. HTS tape was developed over a decade ago and is now considered a foundational technology for the emerging fusion industry. It enables the creation of strong magnetic fields, which are necessary to confine and control the hot plasma required for fusion reactions. While fusion power is expected to be a major consumer of HTS tape, other industries are also exploring its potential. For example, companies like Veir are using HTS tape to improve the efficiency and power output of data centers, which are major consumers of electricity. Proxima’s investment in HTS tape production marks a significant step toward making fusion energy more viable and scalable. By reducing reliance on foreign suppliers and increasing domestic production, the company aims to support the growth of fusion technology in Europe. This development not only advances Proxima’s own goals but also contributes to a broader shift in how the world approaches clean energy production.