Yunnan Germanium Recycling Project Targets Feedstock Security for Strategic Metal Supply

Germanium Scrap

Yunnan Germanium recycling project plans will strengthen China’s largest germanium producer’s control over feedstock as demand from downstream high-end manufacturing remains strategically important. The company plans to invest 200.66mn yuan in a fully automated facility to process germanium-bearing waste slag.

The Yunnan Germanium recycling project will have capacity to process 150,000 t/yr of germanium-bearing waste slag. The company has not disclosed the construction timetable or launch date.

The Yunnan Germanium recycling project is designed to improve germanium resource utilisation and support raw material supply for downstream deep-processing products. This matters because germanium is a strategic minor metal used in defence, infrared optics, fibre optics, semiconductors and high-performance electronics.

The project also reflects a broader industry shift. Producers of critical and minor metals are increasingly trying to secure secondary feedstock as primary supply becomes more politically controlled and price volatility rises.

Recycling Capacity Reduces Dependence on External Raw Materials

Yunnan Germanium said partial reliance on externally sourced raw materials exposes it to germanium price volatility. Prices are influenced by global supply-demand conditions and demand from high-end manufacturing sectors.

The new recycling line should help reduce that exposure. By processing waste slag, the company can recover more germanium units from secondary material and support its downstream production chain.

This is strategically important because Yunnan Germanium already consumes significant germanium internally. In 2025, the company produced 29.7t of raw-material-grade germanium metal equivalent for external sales, excluding 68.95t used for internal consumption and third-party processing.

That internal use shows how the company is moving more material into higher-value products rather than selling all output into the merchant market. Recycling can strengthen that model by expanding available feedstock.

Yunnan Germanium also plans to diversify external suppliers of germanium-bearing waste slag. It will seek medium- to long-term supply agreements with quality provisions and emergency replenishment clauses.

The company also plans to build a raw material inventory reserve and a price-alert mechanism. It will adjust production and inventory strategies when germanium prices move by more than 10%.

These measures show a more disciplined approach to minor-metal procurement. In markets such as germanium, small disruptions can produce large price movements because supply is concentrated and liquidity is limited.

Export Controls Increase Strategic Value of Germanium Recovery

Germanium has become more strategically sensitive since China placed the metal under strict dual-use export controls in September 2023. China accounts for an estimated 60-70% of global germanium capacity.

This gives Chinese producers significant influence over global availability. It also makes domestic resource recovery more valuable, especially when export controls, defence demand and semiconductor-related applications increase policy attention.

Yunnan Germanium’s revenue rose to 1.07bn yuan in 2025 from 767mn yuan in 2024. Higher prices for key products, including raw-material-grade germanium, supported the increase despite lower external raw metal output.

The company’s recycling investment therefore supports both security and profitability. More stable feedstock access can improve operating flexibility when prices rise or external raw material supply tightens.

For downstream customers, the project may improve Yunnan Germanium’s ability to supply deeper-processed products. These include materials linked to optics, fibre communication, photovoltaics, infrared systems and compound semiconductors.

The broader market implication is clear. Germanium supply security will depend not only on mine output or primary production, but also on recycling, waste recovery, inventory control and long-term feedstock agreements.

The Metalnomist Commentary

Yunnan Germanium’s recycling plan shows that strategic minor metals are moving toward closed-loop resource control. In germanium, the advantage will belong to producers that can combine primary supply, secondary recovery and downstream processing under one feedstock strategy.

Yunnan Germanium Output Falls as Downstream Wafer Demand Absorbs Metal

Germanium

Yunnan Germanium output of raw material-grade germanium available for external sales fell in 2025 as the company redirected more metal into internal downstream production. The shift reflects stronger demand from photovoltaic wafers, optical fibre materials and compound semiconductor products.

Yunnan Germanium output for external raw material-grade germanium sales fell by 13% to 29.7t metal equivalent. The figure excludes 68.95t used for internal consumption and third-party processing.

Yunnan Germanium output therefore signals a change in material allocation rather than simple production weakness. More germanium units are being retained inside the company’s higher-value product chain instead of being sold as raw material.

Revenue rose by 38% to 1.07bn yuan, supported by higher prices for raw germanium, optical fibre materials, PV germanium products, infrared products and semiconductor products.

PV and Optical Fibre Demand Pull Germanium Into Internal Processing

Yunnan Germanium nearly doubled production of 4-6 inch PV-grade germanium wafers in 2025. Output rose to 909,000 pieces from 491,400 pieces a year earlier.

This growth is strategically important because germanium wafers serve high-efficiency photovoltaic applications. Stronger wafer output means more raw germanium is being converted into higher-value products rather than sold into the merchant market.

Optical fibre materials also expanded. Output of optical fibre-grade germanium tetrachloride rose to 39.8t from 27t, showing stronger demand from communications infrastructure and optical transmission markets.

Infrared-grade germanium raw material output fell by 28% to 4.77t metal equivalent. However, production of infrared lenses and optical systems rose sharply to 4,717 sets from 1,828 sets.

That mix shows deeper downstream processing. The company reduced some raw infrared material output but increased finished optical systems, capturing more value further along the chain.

For germanium buyers, the key issue is external availability. When China’s largest germanium producer consumes more material internally, less raw metal is available for third-party customers.

Indium Phosphide Expansion Strengthens Compound Semiconductor Push

Yunnan Germanium also increased indium phosphide wafer output in 2025. Production of 2-4 inch InP wafers rose by 55% to 100,100 pieces.

In contrast, gallium arsenide wafer production declined by 13% to 76,300 pieces. This shows a shift in compound semiconductor emphasis toward InP, where demand is rising from advanced optical and semiconductor applications.

The company plans to keep increasing PV-grade germanium wafer and indium phosphide wafer output in 2026. It also plans to reduce infrared product output.

Yunnan Germanium targets 73t metal equivalent of raw material-grade germanium products in 2026, including internal use and third-party processing. It also plans to produce 1.45mn pieces of 4-6 inch equivalent PV-grade wafers and 180,000 pieces of 2-6 inch InP wafers.

The company also plans to produce 35t of optical fibre-grade germanium tetrachloride, 80,000 pieces of 3-6 inch GaAs wafers, 3t of infrared-grade germanium raw materials and 8,000 sets of infrared lenses and optical systems.

The planned 188.56mn yuan investment to expand high-quality InP single-crystal wafer capacity reinforces this strategy. Yunnan Germanium is moving from raw germanium supply toward integrated semiconductor and photonics material production.

The Metalnomist Commentary

Yunnan Germanium’s lower external metal output should not be read as weak demand. It shows that strategic germanium producers are capturing more value internally, tightening merchant supply while expanding into PV, optical fibre and InP wafer markets.

Yunnan Germanium InP Wafer Capacity Expansion Targets Optical Communications Growth

Yunnan Chihong

Yunnan Germanium InP wafer capacity expansion will strengthen China’s position in compound semiconductor materials used in optical communications, data centres and high-speed laser systems. The company plans to invest 188.56mn yuan, or about $27.4mn, to add a new high-quality indium phosphide single-crystal wafer production line.

The project will add annual capacity of 300,000 wafers on a 4-inch equivalent basis, including 6,000 6-inch wafers. Once completed, Yunnan Germanium InP wafer capacity will reach 450,000 wafers per year on a 4-inch equivalent basis.

Yunnan Germanium InP wafer capacity growth reflects rising demand from high-speed optical modules, laser chips and detector chips. The company said its existing capacity can no longer meet market requirements as downstream customers demand larger wafer sizes and higher quality.

Indium Phosphide Demand Rises With AI and Optical Networks

Indium phosphide wafers are III-V compound semiconductor materials used in laser and detector chip production. These components are essential for high-speed optical modules, data centre interconnects, optical communications equipment and high-power lasers.

Demand has continued to rise as the optical communications market expands. High-speed optical modules have entered large-scale deployment, driven by data centre growth, AI computing infrastructure and faster network transmission requirements.

Yunnan Germanium produced 35,400 pieces of 2-4 inch indium phosphide wafers in the first half of 2025, up 4% from 33,900 pieces a year earlier. The new 18-month expansion project will help the company move beyond current capacity limits.

China Deepens Control Over Indium-Based Semiconductor Materials

The expansion also reinforces China’s role in indium supply. Indium phosphide wafers are a downstream application for indium metal, and China remains the world’s largest indium producer, with combined primary and recycled output of 1,800-1,900t in 2025.

The material also carries strategic trade significance. China placed indium phosphide under its strict dual-use export licensing system in February 2025, reflecting its importance in advanced semiconductor, optical and defense-related technologies.

For Yunnan Germanium, the project adds value beyond upstream germanium and indium exposure. It moves the company deeper into high-end semiconductor materials, where wafer quality, scale and export control positioning can shape competitiveness.

The Metalnomist Commentary

Yunnan Germanium’s expansion shows that minor metals are becoming strategic through their downstream semiconductor applications. Indium phosphide capacity will matter more as AI data centres, optical modules and high-speed communications push demand for advanced compound materials.

Yunnan Germanium Increases Production Amid Rising Demand in First Half of 2024

Yunnan Germanium

China's largest germanium producer, Yunnan Germanium, reported a significant rise in production during the first half of 2024. The company attributed this growth to increasing demand from the photovoltaic (PV) and semiconductor sectors, which rely heavily on germanium for critical applications.

Strong Growth in PV and Semiconductor Output

Between January and June, Yunnan Germanium produced 218,300 pieces of PV-grade germanium wafers, a 52% increase from the 143,900 pieces produced during the same period last year. While PV-grade output surged, the company saw a 6% drop in infrared-grade germanium products, which totaled 2.35 tonnes. Production of germanium tetrachloride, used in optical fiber materials, also decreased by 36% to 9.84 tonnes.

The company also experienced growth in other semiconductor products. Its gallium arsenide (GaAs) wafer production jumped 64% to 47,900 pieces, while output of indium phosphide more than doubled, reaching 33,900 pieces, up from 15,300 pieces a year earlier.

Increased Revenue Despite Mixed Results

Despite some declines in specific product lines, Yunnan Germanium's overall revenue grew by 23%, reaching 348 million yuan ($49 million) in the first half of 2024. This was largely due to the increased sales of raw-material-grade germanium, PV-grade germanium products, and semiconductor-related products.

Germanium is a by-product of zinc and lead production. However, many mines have reduced zinc and lead concentrate production due to rising treatment charges, which may impact future germanium supply.

Indium Phosphide Exports Become China’s New Chokepoint in AI Data Centre Supply Chain

AI data centre

Indium phosphide exports have become a strategic pressure point in the global AI data centre supply chain as China’s licensing controls delay shipments of a material essential for high-speed optical chips. The restrictions are exposing a new vulnerability in AI infrastructure: the physical materials behind silicon photonics and optical interconnects.

The issue has moved quickly from a specialist semiconductor concern to a high-level trade and industrial policy problem. Coherent, a key optical components supplier backed by Nvidia, warned in early May that indium phosphide shortages were already affecting the market. Its chief executive then joined a US business delegation to China as companies sought relief from export licence delays.

Indium phosphide exports matter because AI data centres are moving beyond copper-based interconnects. As AI workloads grow, hyperscalers need faster, lower-latency and more energy-efficient data transmission between processors, accelerators, switches and optical modules. Indium phosphide is one of the core materials enabling that shift.

The material is used in high-speed optical chips, lasers, detectors and photonic components. These devices support the optical links that move huge volumes of data across AI clusters. Without reliable indium phosphide substrates and wafers, the expansion of advanced AI data centre networks could slow.

China’s control over indium phosphide exports shows that critical materials policy is becoming more granular. Beijing no longer needs to restrict only rare earths or finished technology products. It can also influence upstream compounds, substrates and wafers that determine whether advanced semiconductor supply chains can scale.

Export Controls Expose a Hidden Bottleneck in Silicon Photonics

Silicon photonics has become a critical technology for AI infrastructure because it allows data to move through light rather than electrical signals. This reduces energy use per bit and supports the bandwidth required by large AI systems.

But silicon photonics is not only a silicon story. The most advanced optical systems often require compound semiconductor materials such as indium phosphide, gallium arsenide, gallium nitride and germanium-based compounds. Indium phosphide is especially important for lasers and high-speed optical devices.

This creates a difficult supply chain problem. AI companies, hyperscalers and chipmakers are racing to scale optical modules, but one of the key substrate materials remains highly concentrated. China is the world’s largest indium producer, accounting for about 70% of global output in 2024.

That concentration became more serious after China introduced export restrictions on indium phosphide in February 2025. Since then, licence delays have created backlogs for companies that manufacture or source InP substrates from China.

AXT, one of the world’s largest indium phosphide substrate producers and a major supplier to Coherent, said export permits were its most significant challenge. The company manufactures most of its InP substrates in China and only received its first permits last June. It still faces a large order backlog.

The effect has spread beyond individual suppliers. Coherent, Lumentum, VPEC and LandMark Optoelectronics all sit inside the optical components ecosystem that depends on reliable substrate supply. When permit delays hit upstream InP material, the impact moves through wafers, chips, optical modules and AI data centre equipment.

Prices show the severity of the shortage. Since China introduced export restrictions, the average price of a 6-inch indium phosphide wafer has surged by 250% to about $5,000. That price increase reflects both physical scarcity and the strategic premium attached to non-disrupted supply.

The supply squeeze also comes at a time of aggressive photonics investment. Nvidia announced $2bn investments each in Coherent and Lumentum in March. Marvell Technology also moved into photonics through its acquisition of Celestial AI, reflecting stronger demand for optical technology in AI computing.

These investments show where the industry is heading. AI infrastructure needs optical interconnects to manage power, latency and bandwidth. But China’s indium phosphide controls mean that materials availability could become a gating factor for deployment.

Companies are trying to respond. Coherent plans to double its InP wafer capacity at its Texas plant this year and more than double it again by the end of 2027. US photonics firms are also seeking supply from non-Chinese producers such as Sumitomo Electric Industries.

However, capacity additions are slow. New substrate plants can take two to three years to bring online. Qualification cycles are also long because optical chipmakers cannot easily switch substrate suppliers without testing performance, reliability and consistency.

This makes the shortage difficult to solve quickly. Even if new capacity is announced, it may not arrive fast enough to meet near-term AI data centre demand. Meanwhile, many non-China producers already consume part of their own output internally, reducing the amount available to the broader market.

China’s Materials Chokepoint Strategy Strengthens Domestic Producers

China’s indium phosphide export controls are creating both pressure and opportunity. They restrict global supply, but they also support domestic Chinese substrate producers that are expanding capacity.

Yunnan Germanium, Guangdong Xiandao and Zhuhai Dingtai Xinyuan are among China’s leading domestic InP substrate players. Their role is becoming more important as Beijing uses materials controls to strengthen strategic leverage across semiconductor and AI supply chains.

Yunnan Germanium has already moved to expand. The company announced a 189mn yuan investment in April to raise production capacity to 450,000 single InP wafers annually. Its shipments of InP wafers rose by 74% in 2025, showing fast domestic market growth.

Guangdong Xiandao is also expanding through its subsidiary Guangdong Xianrui. The project is expected to produce 40 t/yr of indium phosphide crystals, which are used as raw material for substrates.

These investments fit a broader pattern. China is not only defending control over upstream critical materials. It is also building downstream processing capacity in higher-value compound semiconductor materials.

However, Chinese producers may not immediately solve the global shortage. Some are still seeking export approvals, and any overseas shipments may be limited. Domestic demand remains a priority, especially as China builds its own AI, optical communications and semiconductor ecosystem.

AXT

Supplier qualification creates another barrier. Companies such as Coherent and Lumentum are unlikely to switch easily from established suppliers. Coherent relies heavily on AXT, while Lumentum sources mainly from Sumitomo and JX Advanced Metals. New suppliers must pass demanding qualification cycles before they can enter critical optical chip supply chains.

This gives China’s export controls a long-lasting effect. Even if alternative suppliers exist, the market cannot instantly redirect demand. The bottleneck is not only production volume. It is qualified, high-quality, customer-approved substrate supply.

The strategic lesson is clear. AI supply chains are not only exposed to advanced chips, GPUs and packaging capacity. They also depend on a deep materials stack that includes indium, phosphorous chemistry, InP crystals, substrates, wafers, lasers, detectors and optical modules.

This is why indium phosphide exports have become so important. AI data centre buildouts need more optical links as clusters grow larger. Copper interconnects face limits in speed, distance and energy consumption. Photonics offers a solution, but only if the materials chain can scale.

For the US and its allies, the response will likely require more than emergency licence negotiations. It will require investment in indium recovery, InP crystal growth, substrate manufacturing, wafer capacity and long-term offtake agreements. It may also require strategic stockpiles for high-purity indium and compound semiconductor substrates.

The issue also strengthens the case for recycling and secondary recovery. Indium is often produced as a by-product, making primary supply difficult to expand quickly. Recovering indium from industrial scrap, displays, semiconductors and related waste streams could become more important if export controls persist.

For AI data centre developers, the risk is timing. Demand for optical modules is accelerating now, while new ex-China capacity may not fully arrive until 2027 or later. That mismatch could raise costs, delay deployments and intensify competition for qualified photonics suppliers.

The market may therefore see a split. Companies with secured InP supply will be better positioned to support hyperscaler demand. Companies exposed to licence delays, qualification bottlenecks or spot-market wafers may face higher costs and delivery risk.

The Metalnomist Commentary

China’s control over indium phosphide exports shows that the AI race is becoming a materials race. The next bottleneck may not be only GPUs or power supply, but the compound semiconductor substrates needed to move data fast enough inside AI clusters.

Chalco rare metals joint venture targets integrated growth and supply security

Rare Metals Mining

China’s Chalco rare metals joint venture marks a strategic expansion across high-purity processing and downstream products. The Chalco rare metals joint venture will unite affiliates under Chinalco to scale gallium, germanium, indium, selenium, tellurium and rhenium. As a result, the Chalco rare metals joint venture strengthens China’s control across critical mineral supply chains.

JV structure and product scope

Chalco will hold a 20pc stake in the joint venture. Other investors include Chinalco Group, Yunnan Copper, Chihong Zinc-Germanium and China Aluminum Capital. The venture will handle high-purity processing, compounding, product development, production and sales. Therefore, the platform links base metals and rare metals into one industrial chain.

Capacity plans and policy backdrop

Chalco targets 16.81mn t of metallurgical alumina and 7.8mn t of primary aluminium in 2025. Meanwhile, Beijing is integrating critical minerals and tightening export controls on selected metals. China also consolidated rare earth assets into Northern Rare Earth and China Rare Earth. Consequently, the Chalco rare metals joint venture aligns capacity with policy and market needs.

The Metalnomist Commentary

The JV formalizes a midstream hub that can stabilize feedstock and pricing. Buyers should watch contract terms for gallium and germanium as policy risk stays elevated. Partnerships may expand quickly if downstream magnet and semiconductor demand accelerates.