A 15-Year Strategic Bet Enters Its Harvest Phase
On February 16, 2026, Japanese trading house Sojitz Corporation formally announced an expansion of its rare earth element imports from Australia’s Lynas Rare Earths, adding new product categories and signaling the most significant milestone yet in Japan’s decade-and-a-half campaign to diversify its critical minerals supply chain away from Chinese dominance. The partnership between Sojitz and Lynas dates back to 2011, initiated in the immediate aftermath of China’s 2010 rare earth export restrictions that sent shockwaves through global manufacturing sectors dependent on these irreplaceable materials. That crisis fundamentally rewired Japanese industrial policy, embedding a core principle into Tokyo’s resource security doctrine: never again allow a single nation to hold veto power over the supply of strategic minerals.
The fruits of this long-term investment began materializing in October 2025, when Sojitz commenced imports of heavy rare earth elements — dysprosium and terbium — from Lynas. These elements serve as critical additives in high-performance neodymium-iron-boron (NdFeB) permanent magnets, directly determining the thermal stability and efficiency of electric vehicle drive motors and wind turbine generators. Now, Sojitz has announced that it will add samarium imports beginning April 2026, with plans to expand to as many as six medium and heavy rare earth elements by mid-2027, including gadolinium (used in MRI contrast agents and nuclear reactor control rods) and yttrium (essential for superconducting materials and specialty ceramics). Japan’s rare earth diversification is transitioning from targeted point solutions to comprehensive coverage across the entire critical elements spectrum.
China’s Tightening Export Controls Create Unprecedented Urgency
The strategic context for Sojitz’s accelerated timeline is defined by an increasingly adversarial minerals trade environment. China currently controls approximately 85% to 90% of global rare earth refining and separation capacity, a concentration ratio that far exceeds its share of upstream mining. This distinction matters enormously: while rare earth ores can be found across multiple continents, the chemical separation processes required to transform mixed concentrates into individual high-purity oxides remain overwhelmingly concentrated within Chinese facilities. Lynas occupies a uniquely strategic position as the only company outside China operating commercial-scale separated rare earth oxide production, with its LAMP processing facility in Kuantan, Malaysia, and Mt Weld mine in Western Australia forming an integrated mine-to-refinery value chain.
In January 2026, Beijing further tightened its critical minerals export control regime, with reports from the Wall Street Journal and other outlets indicating that Chinese authorities began restricting dual-use rare earth product exports to Japanese companies. This follows a pattern of escalating controls — gallium and germanium export licensing in 2023, antimony and graphite restrictions in 2024 — but the extension to rare earths carries particular sensitivity because it directly threatens Japan’s most competitive manufacturing sectors: EV motors, precision electronics, medical devices, and defense equipment. Against this backdrop of incrementally escalating restrictions, Sojitz’s decision to broaden its Lynas import portfolio represents both a preemptive defensive measure and advance preparation for what Japanese strategists increasingly view as inevitable further restrictions ahead.
The Strategic Value of Samarium: Beyond Magnets to Defense and Aerospace
The addition of samarium to Sojitz’s import portfolio deserves particular attention. Most industry analysis of rare earth supply chains focuses on neodymium and praseodymium, which dominate the global NdFeB permanent magnet market. However, samarium’s strategic significance in the supply chain hierarchy is arguably disproportionate to its market volume. Samarium-cobalt (SmCo) permanent magnets are the only rare earth magnetic materials capable of maintaining performance at temperatures exceeding 250°C, making them irreplaceable components in jet engine assemblies, military radar systems, satellite communications equipment, and precision-guided munitions. Japan, as one of the world’s leading military technology developers and an increasingly active space power, has a particularly acute sensitivity to SmCo magnet supply disruptions.
Notably, Lynas had originally scheduled samarium commercial production for 2027 but accelerated the timeline to the first half of 2026 due to robust downstream demand — a decision that itself signals the intensity of global appetite for non-Chinese rare earth sources. For Sojitz, securing early access to Lynas’s samarium output not only protects its customers’ raw material pipelines but also establishes a foundation for Japan to maintain technological and supply chain sovereignty in the SmCo magnet domain. The subsequent addition of gadolinium and yttrium will extend coverage across the full spectrum of critical applications, from permanent magnet manufacturing and medical imaging to superconductor technology and nuclear energy systems.
The FORGE Alliance and the Vance Plan: Japan’s Multilateral Minerals Framework
Sojitz’s bilateral supply arrangements operate within a broader multilateral architecture that is rapidly taking shape. In early February 2026, U.S. Vice President JD Vance proposed the creation of a preferential trade bloc for critical minerals at a summit involving allied nations, with plans to establish coordinated price floor mechanisms designed to counter China’s strategy of leveraging its massive refining capacity to suppress global prices and squeeze out emerging competitors. The United States has already committed $10 billion through Project Vault and assembled a 55-nation FORGE alliance (Framework for Organized Responsible Global Extraction), with Japan and South Korea as founding core members alongside Australia, Canada, and the European Union.
For Japan, the Sojitz-Lynas partnership exemplifies a deliberate dual-track strategy: building direct upstream supply relationships through the trading house system to ensure physical delivery of rare earth materials, while simultaneously engaging in U.S.-led multilateral price coordination and trade bloc construction to create institutional-level long-term guarantees. Japan’s Ministry of Economy, Trade and Industry (METI), in its updated Critical Minerals Security Strategy released late 2025, explicitly set a target of increasing supply source diversification to at least 30% from non-Chinese origins by 2030, with Australia designated as the highest-priority alternative supply partner. Sojitz’s expansion of Lynas import categories represents the direct operational execution of this national strategic directive.
South Korea’s Parallel Path: From Battery Materials to Comprehensive Rare Earth Security
While Japan accelerates its rare earth supply chain restructuring, South Korea is pursuing a parallel but distinctively shaped diversification strategy. Korean rare earth demand concentrates in two primary verticals: the semiconductor value chain represented by Samsung Electronics and SK Hynix (where rare earths serve as polishing compounds and optical components), and the electric vehicle drivetrain ecosystem led by Hyundai and Kia (permanent magnets for traction motors). Korea Mine Rehabilitation and Mineral Resources Corporation (KOMIR) has intensified investments in Australian, Canadian, and African rare earth projects in recent years, while POSCO Group is advancing the industrialization of rare earth recycling and recovery technologies. Within the FORGE alliance framework, South Korea and Japan have formed a de facto “East Asian rare earth security partnership,” with significant complementarity in supply source development and refining technology collaboration.
Yet both nations face a shared structural challenge: even as supply source diversification advances, the fundamental “Chinese monopoly” in rare earth separation and refining capacity remains intact in the near term. While Lynas is the largest non-Chinese separated rare earth producer, its annual capacity of approximately 10,000 tonnes of rare earth oxide (REO) remains a fraction of China’s 200,000+ tonne annual separation capacity. MP Materials’ Mountain Pass mine in the United States has resumed mining operations but its separation and refining lines are not expected to reach production until late 2026. This structural reality means that Japan and South Korea’s rare earth de-risking over the next three to five years functions more as incremental insurance than wholesale substitution — a critical distinction for supply chain strategists planning their materials sourcing portfolios.
Supply Chain Insurance Thinking: Lessons for Global Practitioners
The Sojitz-Lynas case offers a compelling template for global supply chain professionals navigating the post-globalization era. “Supply chain insurance” is evolving from an optional risk management tool into an existential business necessity. Its core logic is not the pursuit of complete self-sufficiency — which is neither economically viable nor strategically necessary — but rather the deliberate construction of alternative supply channels that ensure continuity of core operations under extreme scenarios including export controls, trade wars, and geopolitical conflicts. Sojitz’s 15-year sustained investment demonstrates a simple but profound truth: supply chain resilience cannot be built overnight — it demands long-term strategic patience and continuous resource commitment.
For practitioners across the global supply chain ecosystem, this development carries implications that extend well beyond rare earths. Industry estimates suggest that non-Chinese rare earth producers like Lynas and MP Materials may see their combined global capacity share rise from under 10% today to 15-20% within five years — still far short of replacing China, but sufficient to meaningfully alter the supply chain risk exposure of Japan, South Korea, and Europe in critical application domains. In the global contest over critical minerals, the ultimate winners will not be individual nations or companies, but those organizations that moved earliest and most deliberately to construct diversified, resilient supply networks before the next crisis made such preparation impossible.
Source: Reuters
