The United States and Lithuania have signed a Critical Minerals Framework Memorandum of Understanding (MOU). The agreement creates a bilateral framework to identify priority projects and mobilize public and private financing.
U.S. Secretary of State Marco Rubio and Lithuanian Foreign Minister Kęstutis Budrys signed the MOU on September 17, 2026, in Washington, D.C.
Lithuania describes the agreement as a framework for cooperation on critical raw materials. Its goals include diversifying supplies, supporting investment in extraction and processing, and strengthening supply chains.
The agreement also aims to reduce strategic dependencies.
The announcement does not name specific mining or processing projects. It also does not disclose participating companies or investment amounts. Instead, the two countries will use the framework to develop potential projects and financing arrangements.
Six-Month Window for Priority Projects
The next step has a six-month timeline.
The United States and Lithuania will jointly identify priority projects during this period. They will also work to mobilize government and private-sector financing.
Rubio announced the six-month process during the signing ceremony. The timeline covers project identification and financing activity. It does not set a deadline for completing mines, processing plants or other infrastructure.
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That distinction matters for the mining industry.
The September 17 signing establishes a cooperation framework. It does not represent a final investment decision on a specific mineral asset.
Lithuania’s Foreign Ministry said the agreement will support secure and diversified supplies of critical raw materials. It also aims to encourage investment in extraction and processing.
The ministry linked the framework to stronger supply-chain resilience and lower strategic dependencies.
The next phase will show which projects the two governments consider priorities. It will also reveal how they plan to finance them.
Lithuania’s Role in the Supply Chain
Lithuania is not presenting the agreement only as an opportunity for mineral extraction.
The Lithuanian government says it can contribute expertise in high-tech manufacturing, advanced technologies, critical-material processing and logistics.
It also expects the framework to attract investment and reduce business risks. The government linked those goals to Lithuania’s economic and national security.
This gives the agreement a wider value-chain focus.
The framework covers cooperation on critical raw materials. Lithuania, meanwhile, highlights capabilities across processing, manufacturing, technology and logistics.
The official announcement does not identify a Lithuanian mine or a specific domestic mineral deposit linked to the agreement.
That limits what can be said about the deal’s immediate impact on Lithuanian mining output.
For now, the clearest focus is on cooperation and potential projects across the wider critical-materials supply chain.
Photonics Adds a Technology Dimension
Photonics also featured in the signing ceremony.
Rubio described Lithuania as a global leader in photonics. He also referred to investment screening aimed at protecting strategic industries.
The comments place the agreement within a wider U.S.-Lithuanian discussion on advanced technology and economic security.
However, the U.S. remarks did not identify a photonics project under the critical-minerals MOU.
Lithuania’s Foreign Ministry separately highlighted the country’s high-tech manufacturing and advanced-technology capabilities.
The agreement should therefore not be described as a photonics-minerals project. Nor does it commit the two countries to a specific technology supply chain.
Economic Security Takes Center Stage
Both governments framed the agreement around economic security.
Rubio said secure supplies and processing of critical minerals are essential to the modern economy and national defense.
Budrys said economic security is the Lithuanian government’s second foreign-policy priority after security.
Lithuania also said it consulted businesses before proceeding with the agreement. The government said Lithuanian companies welcomed the initiative.
It expects the framework to support major projects. However, it has not publicly identified those projects.
For mining companies and investors, that leaves an important question.
Which assets will the two governments select?
The answer will help determine whether the agreement produces new extraction capacity, processing investment or other supply-chain activity.
Timing Ahead of Lithuania’s EU Presidency
The agreement comes as Lithuania prepares to take over the rotating presidency of the Council of the European Union.
Lithuania will begin its presidency on January 1, 2027.
Rubio referred to Lithuania as the incoming EU Council presidency country during the signing ceremony. He also highlighted its focus on economic security.
The critical-minerals MOU itself is bilateral.
It is an agreement between the United States and Lithuania. It is not an EU-U.S. agreement.
Its timing still places the deal within a wider European push to strengthen critical-raw-material supply chains.
The European Union and United States signed a separate strategic partnership memorandum on critical minerals in April 2026.
That agreement covers cooperation across the critical-minerals value chain. Areas include exploration, extraction, processing, refining, recycling and recovery.
It also covers investment and geological mapping.
The Lithuania-U.S. framework is separate from that EU-U.S. arrangement.
What Comes Next
The next material test will be the selection of priority projects.
The two governments must also determine how they will finance those projects.
So far, they have not publicly identified the specific minerals, mining or processing assets, companies or investment amounts that will form the project pipeline.
For Lithuania, the framework supports a broader critical-materials ecosystem. That ecosystem includes advanced technology, manufacturing, processing and logistics.
For the United States, the agreement creates another bilateral mechanism for cooperation with a European partner on critical-minerals supply chains.
The outcome will depend on the projects selected during the next phase.
Those decisions will show whether the framework leads to new extraction capacity, processing investment or technology-linked supply-chain projects.
For now, the September 17 signing establishes the framework.
The next six months will determine what comes after it.
