U.S. Concludes Second Pax Silica Summit With 10 New Partner Nations

The State Department concluded the second Pax Silica Summit on June 26 in Washington, DC, with ten additional nations signing on to the initiative, bringing total signatories to 24.

Under Secretary for Economic Affairs Jacob Helberg launched Pax Silica in December 2025 as the department's principal effort addressing artificial intelligence and supply chain security. The framework targets cooperation among allied and partner nations on securing supply chains for critical minerals, energy inputs, advanced manufacturing, semiconductors, AI infrastructure, and logistics.

The two-day summit, held June 25-26, brought together government representatives and private sector participants to discuss collaboration on AI supply chain security. Over a dozen affiliate countries also participated, expanding the network beyond formal signatories.

The State Department has not publicly specified which mechanisms or tools the summit introduced to advance economic security objectives, according to available details.

The expansion represents a sixfold increase in signatories since the initiative's launch six months earlier. The State Department said signatories committed to advancing what it characterized as "secure, prosperous, and innovative supply chains," though specific commitments or enforcement mechanisms remain unclear from the public announcement.

Additional details on summit outcomes appear in a State Department fact sheet. Inquiries about the initiative can be directed through the department's media portal, and updates are available on the Under Secretary for Economic Affairs' X account and the Pax Silica website.