9.66 Million Tons: Sichuan’s World-Class Rare Earth Discovery Changes the Global Mineral Game

• Personnel: Nearly 200 specialist staff on-site at peak
• Altitude: Above 2,800 meters
• Drilling Volume: Over 60,000 cumulative meters
• Sampling: More than 50,000 laboratory tests
• Deep Drilling: Individual holes exceeding 1,000m (3x previous depth)

China just pulled off something massive in the rare earth space.

Sichuan Province has confirmed a staggering 9.6656 million tons of rare earth oxide reserves at the Maoniuping mining site—putting it squarely in second place globally.

For tech investors, supply chain strategists, and anyone tracking critical mineral dependencies, this matters more than you might think.

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The Breakthrough: A 200% Resource Increase That Shocked Everyone

The Ministry of Natural Resources (Ziran Ziyuan Bu 自然资源资源部) just dropped the latest exploration results, and the numbers are eye-watering.

Here’s what they found at the Maoniuping Rare Earth mine in Mianning County, Sichuan:

• 9.6656 million tons of rare earth oxides (REO)
• 27.1354 million tons of associated fluorite deposits
• 37.2277 million tons of associated barite deposits

To put this in perspective: the previous reserve verification showed just 3.16 million tons.

That’s a more than 200% increase from earlier estimates.

Think about it this way—they essentially discovered the equivalent of two more complete Maoniuping mines within the same geographical footprint.

This isn’t incremental progress; it’s a game-changer.

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Global Context: Where Maoniuping Sits in the Rare Earth Hierarchy

Now let’s talk positioning in the global rare earth mining landscape.

According to public data, the Bayan Obo Mine in Baotou, Inner Mongolia remains the world’s largest rare earth mine with 44 million tons in proven industrial reserves—accounting for a whopping 83.7% of China’s national total.

Maoniuping’s new reserves put it directly in second place globally for light rare earths.

This is a massive deal for supply chain resilience.

Here’s why:

• Rare earth elements power everything from electric vehicles to semiconductor manufacturing
• Light rare earths are the more valuable, easier-to-process category
• China’s rare earth resources were historically concentrated in the north (light rare earths) and south (heavy rare earths)
• Maoniuping fills the gap by providing massive light rare earth reserves in southern China

For geopolitical watchers, this significantly strengthens China’s position in global rare earth supply chains.

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How We Got Here: Decades of Exploration, Constant Refinement

Rare earth minerals were first discovered at Maoniuping way back in the 1980s.

But understanding what’s actually underground? That takes serious time and evolving technology.

The exploration journey looked like this:

• 1980s: Initial rare earth discovery at the site
• 2010: First major reserve verification confirmed 3.16 million tons of REO—nearly double the previous estimate at that time
• 2023: Maoniuping integrated into China Rare Earth Group (Zhongguo Xitu Jituan 中国稀土集团) and placed under China Rare Earth (Liangshan) Co., Ltd. (Zhongxi (Liangshan) Xitu Youxian Gongsi 中稀（凉山）稀土有限公司)
• 2023: Reserve verification and deep-source exploration project officially launched
• 2024: Final results reveal 9.6656 million tons—exceeding all prior expectations

The reason reserves kept expanding?

Better exploration technology and improved geological theory.

Each time they went deeper and used newer methods, they found more.

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The Deep Dive: What It Actually Took to Map This Monster

Finding 9.66 million tons of rare earth wasn’t easy.

The exploration team described the challenge like this: “fishing from the shore” without being able to see the schools of fish beneath the surface.

So here’s what they actually did to locate all that hidden ore:

The Lineup: Who Was Involved

This wasn’t a solo operation.

The project pooled resources from major scientific institutions:

• Chinese Academy of Geological Sciences (Zhongguo Dizhi Kexue Yuan 中国地质科学院)
• First Geological Brigade of the Sichuan Bureau of Geology and Mineral Resources (Sichuan Sheng Dizhi Kuangchan Kancha Kaifa Ju 四川省地质矿产勘查开发局)

The Methodology: Innovation in Action

Instead of guessing, the team deployed cutting-edge exploration techniques:

• Applied new exploration theory to lock onto vein directions
• Used advanced geological drilling to verify ore body positions
• Gradually revealed underground mineral patterns through systematic testing

The Scale: Massive Operations

By the end of 2023, the operation was running full-throttle at an altitude of over 2,800 meters.

Here are the hard numbers:

• Nearly 200 personnel stationed on-site at peak operations
• Multiple drill rigs penetrating depths of over 1,000 meters
• Over 60,000 meters of drilling completed
• More than 50,000 samples tested and analyzed
• Single deep holes reaching more than three times the depth of previous record drillings in the area

Each core sample extracted still carried warmth from deep underground strata, often shimmering with mineral luster.

These samples became the foundation for determining resource reserves and ore grades.

The Results: Expectations Shattered

Experts initially projected an increase of 4.96 million tons of REO during mid-term evaluation in 2024.

The actual result: 9.6656 million tons confirmed.

They essentially doubled their conservative estimates.

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Why This Matters: Strategic Resource Security for China

Industry insiders aren’t just excited—they’re calling this vital for securing China’s national strategic resource safety.

Here’s the critical angle:

Rare earth elements aren’t optional in the modern economy.

They’re essential for:

• EV motors and battery systems
• Semiconductor and microchip manufacturing
• Wind turbine generators
• High-tech defense applications
• Consumer electronics across all categories

Supply chain stability directly impacts global tech production capabilities.

This discovery shifts the leverage significantly in China’s favor.

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Beyond Rare Earth: The Bonus Resources That Add Real Value

Here’s where Maoniuping gets even more interesting for investors and operators.

The mine isn’t just a rare earth play.

Associated with the rare earth deposits are massive quantities of two other commercially valuable minerals:

Fluorite: 27.1354 Million Tons

Fluorite is a strategic resource with multiple industrial applications.

The mine has already achieved comprehensive utilization of its fluorite deposits.

Barite: 37.2277 Million Tons

Barite has strong market demand and is actively traded.

Like fluorite, the mine is already extracting value from barite deposits.

Molybdenum (Mu 钼) and Other Elements

Additional associated resources including molybdenum add another revenue stream.

According to Li Linsen (李林森), a senior rare earth expert and Deputy Director of the Geological Mining and Mineral Processing Committee of the Rare Earth Society of China (Zhongguo Xitu Xuehui 中国稀土学会):

“This breakthrough provides the ‘resource confidence’ for Sichuan’s rare earth industry to scale into a 10-million-ton ultra-large base. With fluorite being a strategic resource and barite having strong market demand, the comprehensive development value of the deposit is significant.”

Translation: Maoniuping isn’t just a rare earth mine anymore.

It’s becoming a comprehensive mining operation with multiple revenue-generating mineral streams.

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Sichuan’s Rare Earth Industrial Evolution: From Extraction to Full Supply Chain

What’s really compelling is how Sichuan has transformed its rare earth sector over the past decade.

The province isn’t just mining anymore—it’s built out a complete industrial chain.

The Full Value Chain Now Includes:

• Raw extraction from mining operations
• Smelting and ore processing
• Separation of individual rare earth elements
• Material processing and downstream manufacturing

Geographic Distribution Across Sichuan

The industry infrastructure spans multiple regions:

• Liangshan (凉山)
• Leshan (乐山)
• Chengdu (成都)
• Mianyang (绵阳)

This geographic spread creates efficiency, reduces transportation costs, and builds redundancy in the supply chain.

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The Ambitious Target: Sichuan’s “Rare Earth Power Province” Vision

In 2023, five Sichuan provincial departments released an aggressive development roadmap.

The vision is crystal clear: become a globally competitive rare earth industry base.

The 2027 Target

• Status: Globally competitive rare earth industry base
• Total industry scale: Exceeding ¥100 billion RMB ($13.8 billion USD)

That’s an ambitious but now much more achievable target with 9.66 million tons of confirmed reserves behind it.

The Maoniuping discovery removes the biggest bottleneck: resource scarcity.

With the reserve confidence secured, Sichuan can now focus on scaling production, refining extraction technology, and capturing more of the value chain downstream.

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What This Means for Investors and the Tech Industry

If you’re tracking Chinese mineral security, EV supply chains, or semiconductor manufacturing capacity, this discovery is a major data point.

The takeaways:

• Resource security: China’s rare earth position just got significantly stronger
• Supply chain stability: More reserves mean more stable long-term pricing and availability
• Regional economic growth: Sichuan’s rare earth industry is positioned for massive expansion
• Technology enablement: Better rare earth supply supports continued EV and semiconductor growth globally
• Geopolitical leverage: China controls an even larger share of critical mineral supply chains

The discovery of 9.66 million tons of rare earth oxides at Maoniuping represents far more than just a mining achievement—it’s a strategic inflection point for global supply chains and China’s resource security position.

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References

• 9.66 Million Tons! Sichuan Discovers World’s Second Largest Light Rare Earth Mine – China Business Network (Yicai)
• Company Profile – China Rare Earth Group
• National Mineral Exploration Results – Ministry of Natural Resources of the People’s Republic of China