Dolphin Mine: West's Tungsten Lifeline Reopens

Australia's Dolphin Mine on King Island re-emerges as the Western world's key tungsten source as China's export curbs drive APT prices up 900% over twelve months and defense demand intensifies.

Group 6 Metals secures US$1.75B Traxys offtake; Western APT benchmark reaches ~$3,200/mtu, up roughly 900% over 12 months.
China limited tungsten exports to 15 authorized companies in 2026, cutting APT shipments roughly 70% through late 2025.
A $5B-plus US-Australia critical minerals framework designates tungsten a priority defense supply chain material.

Lead

KING ISLAND, Tasmania — Group 6 Metals' Dolphin Tungsten Mine, a deposit on a remote Bass Strait island historically reopened on the eve of every major global conflict, is scaling underground operations under a US$1.75 billion offtake agreement with commodity trading house Traxys as China's progressive export controls push Western ammonium paratungstate prices to approximately $3,200 per metric tonne unit — a 900% surge over the past twelve months and the most dramatic repricing the tungsten market has experienced since the Korean War era.

What Happened

Group 6 Metals (ASX: G6M), operator of the Dolphin Tungsten Mine on King Island, Tasmania, secured a multi-year offtake extension with Traxys covering at least 10,000 tonnes of WO₃ in scheelite concentrates over six to eight years. The company simultaneously executed a binding underground mining services contract with HMR Drilling Services valued at $110–120 million, locking in fixed rates through mid-2027 as operations transition from open-cut to underground extraction.

The mine, which hosts the highest-grade tungsten deposit of significant size in the Western world, resumed commercial production in 2023 and is targeting annual output of approximately 2,000 metric tons — equivalent to roughly 2.4% of global mine supply. The scheelite operation posted a profit for the first half of FY26 and is advancing a relisting process on the ASX following a period of corporate restructuring. Half-a-dozen shipping containers of tungsten concentrates, each worth approximately $2 million at current prices, now leave King Island monthly.

The China Squeeze

The Dolphin Mine's revival is inseparable from Beijing's systematic tightening of tungsten export flows. In February 2026, China's Ministry of Commerce imposed formal export controls on key tungsten intermediates, including APT, following a series of escalating trade measures tied to US tariff policy. The move formalized restrictions that had been tightening since 2023, capping authorized tungsten exporters at 15 designated companies and granting Beijing direct control over the volume, timing, and destination of shipments.

The impact was immediate and measurable. Chinese APT export volumes fell roughly 70% in the first eleven months of 2025 compared with 2024, and remained down approximately 27.6% year-on-year through early 2026. With China controlling approximately 80% of global tungsten mine production and a comparable share of downstream refining capacity, the supply shock propagated rapidly through Western industrial and critical minerals supply chains.

The Western benchmark — APT CIF Rotterdam, 88.5% purity — was assessed at approximately $3,050–3,200 per metric tonne unit by mid-2026, up roughly 350% since January and roughly 900% compared with prices recorded twelve months earlier.

Strategic Context

Tungsten's industrial profile — extreme hardness, the highest melting point of any element, and exceptional resistance to thermal deformation — makes it irreplaceable across applications where no viable substitute exists: armor-penetrating ammunition, hardened cutting tools, drill bits, gas turbine components, and semiconductor fabrication equipment. China's dominant position across the supply chain gives Beijing a structural lever over allied defense industries. Australia tungsten reserves are the second-largest in the world at approximately 13% of the global total of 4,400 kilotonnes, behind China's 52%. The Dolphin Mine's scheelite concentrate is among the purest feedstocks accessible to Western processors, and the mine's established infrastructure — including a modern processing plant — gives it a lead time advantage over greenfield projects still years from production.

Geopolitical Dimension

The Dolphin Mine's operational history functions as an unintentional indicator of global security conditions. First opened in 1917 to supply Allied munitions in World War One, the mine reopened ahead of World War Two, the Korean War, and the Vietnam War, each time responding to a surge in military tungsten demand. It closed in 1990 — twelve months after the fall of the Berlin Wall — as the strategic rationale for high-cost remote-island mining collapsed.

The current cycle is structurally distinct from prior wartime tungsten rushes. The demand driver is not a discrete conflict but a sustained technology-industrial competition between the United States and China, one in which control of critical minerals processing is central to strategic planning across Washington, Beijing, Brussels, and Canberra.

Under a landmark US-Australia Critical Minerals Framework Agreement signed by Prime Minister Anthony Albanese and President Donald Trump in October 2025, the two governments committed more than $5 billion to support Australian critical minerals projects. Tungsten is explicitly designated a priority material alongside gallium, vanadium, cobalt, and rare earth elements. The framework's inaugural ministerial meeting, held in Tokyo in March 2026, advanced project-level financing structures, with Australian tungsten assets — including the Dolphin Mine and EQ Resources' Mt Carbine project in Queensland — among the supply chain nodes under active discussion.

What Comes Next

Group 6 Metals is targeting a full production ramp to 2,000 metric tons annually, with output directed to non-Chinese processors in Europe, Japan, and North America under the Traxys agreement. The $110 million underground mining contract provides multi-year cost certainty as the company scales toward that target.

The broader Australia tungsten exploration sector is attracting intensified capital. Tungsten-related investment in Australian exploration rose more than 90% through 2024, according to government production data, and the pace has accelerated as the tungsten news cycle has drawn institutional attention to the sector.

The structural imbalance between Western demand and non-Chinese supply is unlikely to resolve before the late 2020s. New large-scale projects require years of permitting, infrastructure, and processing development. In the near term, the Dolphin Mine — isolated, capital-intensive, and historically dormant — is one of the few operational answers the Western world has to a supply problem that Beijing has the authority to tighten further at any moment.

Outlook

Australia's Dolphin Mine has transitioned from a historical footnote to a geopolitical asset as the gap between Western tungsten demand and non-Chinese supply enters a prolonged period of structural tension. Group 6 Metals' US$1.75 billion Traxys agreement and accelerated underground development position the company to supply allied defense and industrial customers with a certified Western source of the metal at scale. With APT prices near record levels and Chinese export authorization constrained by deliberate policy, pressure on governments and manufacturers to diversify tungsten sourcing is set to deepen throughout the remainder of 2026.

Mentioned tickers: G6M