As the United States intensifies efforts to reduce dependence on China for critical minerals, a relatively little-known diplomatic platform called the C5+1 Critical Minerals Dialogue is emerging as an important part of Washington’s strategy.
The initiative brings together the United States and the five Central Asian republics — Kazakhstan, Kyrgyzstan, Tajikistan, Turkmenistan and Uzbekistan — in an effort to develop alternative supply chains for minerals essential to electric vehicles, semiconductors, artificial intelligence, renewable energy systems and defence technologies.
The upcoming C5+1 Critical Minerals Dialogue in Astana comes at a time when critical minerals have become a central pillar of US economic and national security policy. US Secretary of State Marco Rubio recently told lawmakers that “in every embassy around the world, critical minerals are a key component of our diplomacy,” highlighting Washington’s growing focus on securing access to strategic resources.
What Is C5+1?
The C5+1 format was launched in 2015 as a diplomatic framework linking the United States with the five Central Asian nations. Originally focused on regional security, economic cooperation, climate issues and connectivity, the grouping has increasingly shifted attention towards critical minerals as demand for strategic resources accelerates.
The dedicated Critical Minerals Dialogue was formally launched in 2024, reflecting growing US concern over China’s dominance in global mineral supply chains.
According to analysts at the Center for Strategic and International Studies (CSIS), the dialogue seeks to improve geological cooperation, attract investment into mining projects, strengthen supply chains and expand processing capabilities across Central Asia.
Why Is Central Asia Important?
The answer lies underground.
Central Asia possesses some of the world’s largest untapped reserves of critical minerals.
Kazakhstan is already the world’s leading uranium producer, accounting for approximately 39 per cent of global uranium production in 2024, with output exceeding 23,000 metric tonnes.
Uzbekistan has significant deposits of lithium, rare earth elements, tungsten and germanium. Tajikistan is responsible for roughly 15 per cent of global antimony production, while the region as a whole contains substantial reserves of manganese, chromium, copper, zinc, titanium and rare earth minerals.
A US Geological Survey assessment identified hundreds of deposits and occurrences of rare earths and critical minerals across the five countries.
For Washington, these resources offer an opportunity to diversify supply chains away from China.
The China Factor
The push is driven largely by China’s dominance across critical mineral supply chains.
While minerals may be mined in different countries, China controls a significant share of global processing and refining capacity. International Energy Agency estimates show that more than 40 per cent of global refining capacity for key minerals such as lithium, cobalt, copper and rare earths is concentrated in China.
In rare-earth processing, China’s share is even higher.
This concentration has alarmed Western governments because processing is often more strategically important than mining itself. Countries may possess mineral deposits, but without refining facilities they remain dependent on external suppliers.
The United States sees Central Asia as one of the few regions capable of providing meaningful diversification over the long term.
Why Does The Dialogue Matter?
The C5+1 initiative is about more than securing access to mineral deposits.
Washington is attempting to build an entire ecosystem that includes exploration, mining, transportation corridors, refining facilities, financing mechanisms and long-term supply agreements.
The challenge is considerable.
China and Russia currently maintain strong economic influence across Central Asia. Much of the region’s transport infrastructure, export routes and industrial networks were developed during the Soviet era or have since been integrated into Chinese trade corridors.
According to CSIS, around 27 per cent of Kazakhstan’s mineral exports currently go to China, while only a small share reaches the United States.
As a result, the dialogue aims not only to identify resources but also to create viable commercial alternatives capable of attracting Western investment.
Why It Matters Globally
Critical minerals have become indispensable for the technologies driving the global economy.
The International Energy Agency estimates that an electric vehicle requires about six times more mineral inputs than a conventional car, while a wind power project requires roughly nine times more minerals than a gas-fired power plant.
As countries race to build AI infrastructure, renewable energy systems, electric vehicles and advanced defence capabilities, access to these minerals is increasingly viewed as a strategic necessity.
The C5+1 Critical Minerals Dialogue therefore represents more than a regional initiative. It is part of a broader global effort by the United States and its allies to reshape supply chains, reduce dependence on China and secure the raw materials expected to underpin economic growth and technological leadership for decades to come.
Arun Nag 
Sridhar P