Indium Corporation is a US-based specialty materials manufacturer supplying high-purity indium, gallium, and germanium to semiconductor, electronics, and defence markets globally. Founded in 1934 and headquartered in Clinton, New York, the company operates manufacturing facilities and technical centres across nine countries and employs more than 520 people worldwide.
Indium Corporation: Company Overview
Indium Corporation was established on 13 March 1934, making it one of the oldest specialty metals businesses in the United States. The company is privately held, led by President and CEO Ross Berntson, and has built its commercial position around the processing and application of minor metals — principally indium — for high-technology end markets.
Its product portfolio spans more than 300 specialty alloys alongside solder pastes, fluxes, thermal interface materials, and fabricated metal forms including preforms, spheres, ribbons, and foils. The common thread is precision: Indium Corporation targets applications where material performance is mission-critical and tolerances are narrow.
As an active member of the Minor Metals Trade Association (MMTA), Indium Corporation participates in the governance and development of the global minor metals trading community. Theo D. Ruas, Global Sales Manager for Metals and Compounds, represented the company at the MMTA Vancouver 2026 conference, presenting on indium market dynamics.
Key Products and Technology Metals
Indium Corporation’s core materials — indium, gallium, and germanium — sit at the intersection of semiconductor fabrication, defence optics, and clean energy infrastructure. All three are subject to active Chinese export licensing controls introduced in 2023 and tightened through 2024 and 2025, which has significantly elevated their strategic profile among Western procurement teams.
The company supplies refined elemental indium and indium compounds for use in indium tin oxide (ITO) flat-panel displays, thin-film photovoltaic cells, and semiconductor wafer bonding. Gallium and germanium are supplied for III-V semiconductor applications, infrared optics, and fibre-optic systems — markets where Western supply alternatives to Chinese production remain thin.
On the solder and assembly side, proprietary product lines include Durafuse® LT, a low-temperature solder paste engineered to reduce energy consumption in electronics assembly lines by up to 25%, and the Rel-ion® portfolio targeting high-reliability automotive and e-mobility applications.
Markets Served
Indium Corporation’s end markets span electronics assembly, semiconductor packaging, automotive electrification, 5G infrastructure, and thermal management. The company positions itself at the materials science layer of each — developing custom formulations rather than supplying commodity volumes.
In semiconductor packaging, the company develops interconnect materials for advanced heterogeneous integrations, including 2.5D chip-on-wafer configurations that are central to high-performance AI and data centre processor architectures. Demand from this segment has grown materially as AI infrastructure investment has accelerated.
In automotive, the Rel-ion® product line addresses the reliability requirements of power electronics in electric vehicles — a market where solder joint performance under thermal cycling is a qualification-critical parameter.
Supply Chain and Recycling Operations
Indium Corporation operates reclamation and recycling services for indium and other minor metals recovered from manufacturing scrap and end-of-life electronics. This circular supply model reduces the company’s dependence on primary mined supply and supports customer sustainability commitments — an increasingly relevant commercial consideration for electronics OEMs with Scope 3 reporting obligations.
In a notable recent development, Indium Corporation partnered with Ames National Laboratory to apply automated laboratory systems and AI-driven data workflows to gallium supply chain development. The collaboration is designed to compress the timeline for qualifying new Western gallium supply from over a decade to two to three years — a direct response to the supply concentration risk created by China’s export licensing regime. For context on those controls, see CMN’s analysis of China’s critical minerals export controls.
Gallium and germanium are among the technology metals most exposed to China’s export licensing apparatus. CMN’s ranking of the top 10 technology metals at risk from China export controls covers both in detail. Current indium price data and market context are tracked on sister site rare-earth-mining.com: indium price tracker.
Global Manufacturing Footprint
Indium Corporation operates manufacturing and technical facilities in the United States, United Kingdom, Germany, China, India, Malaysia, Singapore, and South Korea. This multi-country presence allows the company to serve regional electronics manufacturing hubs — particularly in Southeast Asia, which accounts for a large share of global printed circuit board assembly — while maintaining Western production capacity for defence and semiconductor supply chains that require non-Chinese sourcing.
The company’s North American operations are centred at its Clinton, New York headquarters. For broader critical minerals activity across the region, see CMN’s North America critical minerals hub.
Company Snapshot
| Founded | 13 March 1934 |
|---|---|
| Headquarters | Clinton, New York, USA |
| CEO | Ross Berntson |
| Employees | 520+ globally |
| Key metals supplied | Indium, gallium, germanium |
| Primary markets | Semiconductors, electronics assembly, automotive, 5G, defence |
| Manufacturing presence | USA, UK, Germany, China, India, Malaysia, Singapore, South Korea |
| MMTA membership | Active member |
| Ownership | Private |
What does Indium Corporation produce?
Indium Corporation manufactures high-purity indium, gallium, and germanium metals alongside specialty solders, fluxes, thermal interface materials, and fabricated metal forms. Its portfolio spans more than 300 specialty alloys serving semiconductor, electronics, automotive, and defence markets.
Where is Indium Corporation headquartered?
Indium Corporation is headquartered in Clinton, New York, USA. The company operates manufacturing and technical facilities in nine countries including the UK, Germany, China, India, Malaysia, Singapore, and South Korea.
Why is indium classified as a critical mineral?
Indium is classified as a critical mineral by the US, EU, and UK governments due to its concentration of supply in China, its absence of commercially viable substitutes in key applications such as ITO displays and thin-film solar, and its essential role in semiconductor and defence optics manufacturing.
How does Indium Corporation address supply chain risk for gallium and germanium?
Indium Corporation has partnered with Ames National Laboratory to use AI-driven laboratory workflows to accelerate Western gallium supply development. The programme aims to reduce qualification timelines from over a decade to two to three years. The company also operates reclamation and recycling services that recover indium and other minor metals from manufacturing scrap.
Is Indium Corporation involved in the MMTA?
Yes. Indium Corporation is an active member of the Minor Metals Trade Association (MMTA). Theo D. Ruas, the company’s Global Sales Manager for Metals and Compounds, presented on indium market dynamics at the MMTA Vancouver 2026 conference in April 2026.
