--- title: Proxima Fusion signs two Japanese deals to build its... description: Proxima Fusion signed two memorandums of understanding with Japanese companies to build out its fusion supply chain. Fujikura covers high-temperature... canonical: https://daily.dev/posts/proxima-fusion-signs-two-japanese-deals-to-build-its-fusion-supply-chain-deshdzcxc twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: Proxima Fusion signs two Japanese deals to build its fusion supply chain | daily.dev og:description: Proxima Fusion signed two memorandums of understanding with Japanese companies to build out its fusion supply chain. Fujikura covers high-temperature... og:url: https://daily.dev/posts/proxima-fusion-signs-two-japanese-deals-to-build-its-fusion-supply-chain-deshdzcxc og:image: https://api.daily.dev/og/posts/deShDzcxc.png og:image:alt: Proxima Fusion signs two Japanese deals to build its fusion supply chain og:image:width: 1200 og:image:height: 630 og:locale: en --- > ## Documentation Index > Fetch the complete documentation index at: https://daily.dev/llms.txt > Use this file to discover all available pages before exploring further. # Proxima Fusion signs two Japanese deals to build its fusion supply chain **[The Next Web](https://daily.dev/sources/tnw)** · 3 min read · 0 upvotes · 0 comments ## Summary Proxima Fusion signed two memorandums of understanding with Japanese companies to build out its fusion supply chain. Fujikura covers high-temperature superconducting tape, and the companies will study building a factory in Lower Saxony, Germany. Kyoto Fusioneering will work on gyrotrons for plasma heating and the fuel cycle. Proxima expects to need around 20,000 kilometres of tape for its Alpha test machine, due in the early 2030s, and about 40,000 kilometres per commercial Stellaris power plant. Neither deal is a firm order. Proxima raised €411 million in July at a €2.4 billion valuation and employs around 200 people. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Questions this post answers ### How much superconducting tape does a fusion stellarator need? Proxima Fusion expects to need around 20,000 kilometres of high-temperature superconducting tape for its Alpha test machine, planned for the early 2030s. Each commercial Stellaris power plant that follows would require about 40,000 kilometres. The company signed a memorandum of understanding with Japanese manufacturer Fujikura to help secure this supply and explore building a factory in Lower Saxony, Germany. _Developers tracking deep tech and energy supply chains can follow fusion industrialization milestones on daily.dev._ ### Who is supplying components for Proxima Fusion's stellarator reactors? Proxima Fusion signed memorandums of understanding with two Japanese companies: Fujikura for high-temperature superconducting tape, and Kyoto Fusioneering for gyrotrons used in plasma heating and for fuel cycle equipment. Kyoto Fusioneering will also bring its technology to Germany's national Fusion Hubs programme, which launched with €125 million in initial funding. Neither agreement is a firm order yet. _Those following fusion startup supply chains can keep tabs on deals like this via daily.dev._ ## Similar posts on daily.dev - [Proxima Fusion bets €140M on a critical fusion ingredient dominated by Asian suppliers](https://daily.dev/posts/proxima-fusion-bets-140m-on-a-critical-fusion-ingredient-dominated-by-asian-suppliers-csikqyazt) · TechCrunch · 0 upvotes · 0 comments - [Google and RWE back Proxima Fusion in record €411mn round](https://daily.dev/posts/google-and-rwe-back-proxima-fusion-in-record-411mn-round-tq6ol2edp) · The Next Web · 0 upvotes · 0 comments - [Kyoto Fusioneering starts work on key fusion power plant device](https://daily.dev/posts/kyoto-fusioneering-starts-work-on-key-fusion-power-plant-device-aghanxg6d) · TechCrunch · 0 upvotes · 0 comments - [Less Than 10 Years? Commonwealth Fusion Systems Applies To Plug Into Grid In 2030s](https://daily.dev/posts/less-than-10-years-commonwealth-fusion-systems-applies-to-plug-into-grid-in-2030s-gdtwuqxnf) · Hackaday · 0 upvotes · 0 comments - [Terra Fusion Builds Magnetic Mirror Fusion Reactor](https://daily.dev/posts/terra-fusion-builds-magnetic-mirror-fusion-reactor-4bsdgyfh4) · IEEE Spectrum · 0 upvotes · 0 comments --- Tags: [#supply-chain](https://daily.dev/tags/supply-chain) [View this post on daily.dev](https://daily.dev/posts/proxima-fusion-signs-two-japanese-deals-to-build-its-fusion-supply-chain-deshdzcxc) ```json {"@context":"https://schema.org","@graph":[{"@type":"Organization","@id":"https://daily.dev/#organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180},"sameAs":["https://twitter.com/dailydotdev","https://github.com/dailydotdev","https://www.linkedin.com/company/daily-dev-ltd"]},{"@type":"WebSite","@id":"https://daily.dev/#website","url":"https://daily.dev","name":"daily.dev","publisher":{"@id":"https://daily.dev/#organization"},"potentialAction":{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https://daily.dev/search?q={search_term_string}"},"query-input":"required name=search_term_string"}}]} {"@context":"https://schema.org","@type":"TechArticle","headline":"Proxima Fusion signs two Japanese deals to build its fusion supply chain","url":"https://daily.dev/posts/proxima-fusion-signs-two-japanese-deals-to-build-its-fusion-supply-chain-deshdzcxc","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/proxima-fusion-signs-two-japanese-deals-to-build-its-fusion-supply-chain-deshdzcxc"},"datePublished":"2026-10-28T06:42:18.818Z","dateModified":"2026-10-28T06:42:54.427Z","description":"Proxima Fusion signed two memorandums of understanding with Japanese companies to build out its fusion supply chain. 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Each commercial Stellaris power plant that follows would require about 40,000 kilometres. The company signed a memorandum of understanding with Japanese manufacturer Fujikura to help secure this supply and explore building a factory in Lower Saxony, Germany. Developers tracking deep tech and energy supply chains can follow fusion industrialization milestones on daily.dev."}},{"@type":"Question","name":"Who is supplying components for Proxima Fusion's stellarator reactors?","acceptedAnswer":{"@type":"Answer","text":"Proxima Fusion signed memorandums of understanding with two Japanese companies: Fujikura for high-temperature superconducting tape, and Kyoto Fusioneering for gyrotrons used in plasma heating and for fuel cycle equipment. Kyoto Fusioneering will also bring its technology to Germany's national Fusion Hubs programme, which launched with €125 million in initial funding. Neither agreement is a firm order yet. Those following fusion startup supply chains can keep tabs on deals like this via daily.dev."}}]} ```