Pax Silica is a US-led strategic initiative, coordinated by the State Department, to organize a coalition of trusted partner nations around a secure, end-to-end "silicon supply chain" — spanning critical minerals and energy inputs, advanced manufacturing, semiconductors, AI infrastructure and logistics, up through frontier foundation models. It is the allied-coordination component of the US strategy to compete with China across the AI technology stack, alongside the instruments of export controls and the Quad Critical Minerals Framework. It takes the form of a non-binding declaration plus a standing diplomatic process rather than a treaty or regulatory instrument.
Origin and framing
The initiative was launched in December 2025. Under Secretary of State for Economic Affairs Jacob Helberg convened the inaugural Pax Silica Summit on December 11–12, 2025, alongside the signing of a non-binding Pax Silica Declaration. The State Department fact sheet frames it as a "positive-sum partnership… not about isolating others — but about coordinating with partners who want to remain competitive and prosperous," built to "reduce coercive dependencies, protect the materials and capabilities foundational to artificial intelligence, and ensure aligned nations can develop and deploy transformative technologies at scale." Its stated premise, repeated across summit materials, is that "economic security is national security, and national security is economic security." (Pax Silica Summit — Fact Sheet (US Department of State, December 11, 2025))
The name draws on the Latin pax (peace/stability, as in Pax Americana / Pax Romana) and silica (the compound refined into the silicon at the base of computer chips), signaling an attempt to construct a durable, US-anchored economic order for the AI age. (Pax Silica Summit — Fact Sheet (US Department of State, December 11, 2025))
Participants and accession
The inaugural summit convened eight core partners — Japan, the Republic of Korea, Singapore, the Netherlands, the United Kingdom, Israel, the United Arab Emirates, and Australia — alongside guest contributions from Taiwan, the European Union, Canada, and the OECD. The State Department noted these partners host much of the global AI supply chain's most important firms and investors, naming Sony, Hitachi, Fujitsu, Samsung, SK Hynix, Temasek, DeepMind, MGX, Rio Tinto, and ASML. (Pax Silica Summit — Fact Sheet (US Department of State, December 11, 2025))
Membership expanded through early 2026. India signed the Pax Silica Declaration in February 2026 around the Modi–Trump AI Impact Summit, framed as plugging India into "trusted AI supply chains." (Source: m.economictimes.com) Sweden and Finland signed on individually before the EU as a bloc moved.
On June 2, 2026, the European Commission moved to recommend that the EU join Pax Silica as a signatory member. A preparatory document for a June 3 ambassadors' meeting stated the bloc "should join Pax Silica as a signatory member," a step in tension with the Commission's parallel push for tech sovereignty and a reversal of the EU's initial decision to stay out while Sweden and Finland signed individually. (Source: politico.com) The move marks a provisional resolution of the tension between tech sovereignty and joining the US-led bloc among US partners.
On June 25, 2026, Deputy Secretary of State Christopher Landau and Under Secretary Jacob Helberg opened a second Pax Silica summit, which State Department officials framed around limiting AI regulation through global forums while securing supply chains via strategic partnerships. Landau said officials "must dispel the chimera of AI global governance" developing in the United Nations and the World Artificial Intelligence Cooperation Organization (Source: insideaipolicy.com). The framing positioned the initiative as a counterweight not only to Chinese supply-chain dependency but to multilateral AI-rulemaking bodies.
Exclusivity
The framing of Pax Silica as a counterweight to multilateral AI-rulemaking bodies moved toward a membership condition in August 2026. The State Department has drafted a letter — undated and not yet sent as of August 14, 2026 — telling the 35 signatories of the U.S. "AI Opportunity Statement," signed in June 2026, that membership in the Pax Silica framework "cannot be held alongside membership in duplicative initiatives whose expectations conflict with our own," according to an internal draft reviewed by Reuters and a U.S. official. Kazakhstan is the only country known to have joined both Pax Silica and the World Artificial Intelligence Cooperation Organization that Xi Jinping launched in July 2026 (Source: reuters.com).
The draft would convert what had been a rhetorical position — Landau's June statement that officials "must dispel the chimera of AI global governance" — into a condition of participation, though it had not been transmitted and its terms could still change.
Deliverables and structure
Summit participants affirmed commitments to pursue joint projects on AI-supply-chain opportunities and vulnerabilities across priority critical minerals, semiconductor design, fabrication, and packaging, logistics, compute, and energy grids; pursue new joint ventures and co-investment; protect sensitive technologies and critical infrastructure from undue access or control by countries of concern; and build trusted technology ecosystems spanning ICT systems, fiber-optic cables, data centers, and foundational models and applications. Helberg directed US diplomats in Washington and overseas to operationalize the summit through identification of infrastructure projects and coordination of economic-security practices. (Pax Silica Summit — Fact Sheet (US Department of State, December 11, 2025))
The initiative is structured as an economic-security framework: a non-binding declaration paired with a standing diplomatic process, distinct from a treaty or a regulatory instrument. It aligns hardware, minerals, energy, and model governance across a trusted-supplier grouping, positioned against China's vertical-integration strategy.
Reactions
The Atlantic Council argued that the initiative's success depends on concrete offtake and financing mechanisms and credible enforcement rather than declaratory alignment alone. (Source: atlanticcouncil.org) Tech Policy Press read it alongside the Greenland push as part of a more "nakedly imperialist" US industrial-policy turn.
Relationships
- related: Quad Critical Minerals Initiative Framework — the minerals-specific framework Pax Silica's critical-minerals leg overlaps
- related: Export Controls (AI) — the harder counterpart instrument
- depends-on: US-China AI Competition: Different Races, Different Metrics — the strategic contest Pax Silica is built to address; the tracking page also logs the EU accession move
- instance-of: Pax Silica Summit — Fact Sheet (US Department of State, December 11, 2025) — the State Department primary fact sheet