The G7 endorsed the objective of reducing dependence on any single non‑G7 supplier to no more than 60 percent of supply by 2030.
What the G7 leaders committed to
Last month’s G7 leaders’ declaration set a suite of coordinated aims: diversify supply, strengthen allied production, improve market transparency, expand strategic stockpiles and establish the G7 Critical Minerals Resilience and Production Alliance to coordinate those efforts. The declaration formalizes a shared political commitment to treat critical‑minerals security as a collective strategic task rather than a purely commercial issue. For European members the text was tied to concerns about China and Russia; for the United States and Japan the declaration was framed as being essentially only about China. Australia, a major supplier of critical minerals, endorsed the declaration.
Australia’s standing and bargaining leverage
Australia already plays a substantial role in allied critical‑minerals planning: the country has close to 30 bilateral agreements on critical minerals. That standing gives Canberra practical leverage as the G7 moves from political statements to coordinated implementation. The source frames Australia as both a supplier and an ally with a shared exposure to strategic concentration risks.
Japan’s approach: a move toward coordinated stockpiling
Japan has been a driver of the G7 agenda on minerals. Prime Minister Sanae Takaichi argued that supply‑chain resilience meant moving from reactive crisis management to coordinated stockpiling — a shift toward treating critical minerals as a shared strategic responsibility. In that policy architecture the Japanese Minister of State for Economic Security, Kimi Onoda, carries primary responsibility for critical‑minerals supply‑chain resilience; her visit to Australia this week was presented as an opportunity to align Australia’s natural abundance with Japan’s strategic objectives.
A Strategic Diversification Framework: metrics and multilateral building blocks
The article proposes a permanent Strategic Diversification Framework to measure and manage strategic concentration across allied economies. It recommends building on work by the International Energy Agency, multilateral development banks and emerging G7 initiatives. Traditional concentration metrics such as the Herfindahl‑Hirschman concentration index should be extended beyond market share to include strategic variables: geographic concentration, processing capacity, substitutability, switching times, allied production capability and the consequences of supply disruption. The suggested framework is explicitly intended to identify where markets alone will not deliver the resilience governments now seek.
Practical tools: stockpiles, quotas and the limits of market action
The piece endorses Japan’s proposal for allied coordination of strategic stockpiles, while noting that stockpiles alone cannot solve excessive concentration. Where those approaches fall short, the article suggests carefully designed tariff‑rate quotas as one policy instrument among many — calibrated to preserve trade while creating predictable incentives for businesses to diversify over time. The recommendation is not framed as a turn to protectionism or widespread reshoring but as targeted diversification toward trusted partners and emerging producers. The argument is reinforced by recent behaviour in global markets: China’s export controls on gallium, germanium, graphite and rare earth elements, and Beijing’s suspension of exports of selected critical minerals to Japan since December 2025, are cited as demonstrations of how concentrated positions can be used as geopolitical leverage. The article also highlights China’s familiarity with strategic quota use, including most recently in relation to the import of Australian beef.
What this means for firms, governments, and allied producers
- Firms: Commercial actors will face a trade‑off — diversification often comes with higher near‑term costs or greater uncertainty while alternative suppliers scale. Early diversifiers may bear disproportionate costs even though all firms benefit from a more resilient trading system.
- Governments: National authorities must decide when intervention is justified, using shared metrics and transparent evidence. Without proactive involvement, the piece warns, governments risk reacting only after vulnerabilities become crises.
- Allied producers (Japan, Australia, Canada, India, Indonesia, Chile, and partners across Africa and Latin America): These countries are identified as potential sources of greater geographic diversity; their ability to develop competitive processing and manufacturing industries will be central to reducing systemic concentration.
The G7 has set political direction; the decisive work now is technical and institutional. The article’s prescription is concrete: build the analytical architecture capable of measuring concentration, coordinating diversification and intervening where markets cannot adequately manage strategic risk. That, it argues, is the next step to preserve open markets that are resilient against strategic concentration.
