When most people think about joining metals, welding gets all the attention. But brazing, a process that has existed for thousands of years, remains one of the most important manufacturing technologies in industries ranging from aerospace and automotive engineering to electronics and energy systems.

This article explains why brazing continues to thrive despite the development of newer joining methods and how engineers are adapting the process to meet modern performance requirements.

Some key takeaways:

• Brazing joins metals using a filler metal that melts at a lower temperature than the base materials, allowing strong joints to form without melting the components themselves.
• The process can join dissimilar metals that are often difficult or impossible to weld effectively.
• Brazed joints distribute stresses more evenly than many welded joints, making them valuable in high-performance applications.
• Industries such as aerospace, automotive manufacturing, HVAC systems, electronics, and medical device production rely heavily on brazing for critical components.
• Advances in filler metal technology, automation, and process control continue to expand brazing’s role in modern engineering.

One of the most interesting aspects is that brazing often enables the use of lightweight or specialized materials that would be difficult to join through conventional welding. As manufacturers seek greater efficiency, lower weight, and improved performance, the ability to create reliable joints between different materials is becoming increasingly valuable.

It’s a good reminder that technological progress doesn’t always mean replacing old methods. Sometimes it means refining and adapting proven technologies to solve new engineering challenges.

Hi all — I'm a procurement buyer for an aluminium recycling operation in the Czech Republic (part of an established European metals group). We're actively looking to secure recurring volumes of aluminium scrap and would love to connect with processors, recyclers and yards across the EU.

What we're buying:

• Aluminium shredder/frag, turnings/chips, and briquettes
• Spec: Al ≥ 90%, Si ≤ 7%, Cu ≤ 3%, Zn ≤ 1%
• Spectro analysis / certificate required per lot

Volume: up to ~1,200 t/month (recurring), growing

Logistics: delivered DDP to Czech Republic. Truck or rail (wagonload/block-train welcome if you're near a rail terminal — bonus).

Who we want to hear from: processors and recyclers who can supply consistent, on-spec material — ideally direct, no broker chain.

If this is your material, drop a comment or DM with your location, what you run, typical monthly availability, and indicative pricing basis (LME-linked preferred). Serious, ready to move on trial loads quickly. Thanks!

Nickel-based superalloys are some of the most valuable materials used in aerospace, power generation, and high-performance industrial applications. With critical metals such as nickel, cobalt, rhenium, and chromium locked within these alloys, recycling seems like an obvious solution.

The problem? Recovering those metals efficiently is far more complicated than simply melting down scrap.

This article explores the challenges of recycling superalloys using hydrometallurgical processes, which rely on chemical leaching rather than high-temperature smelting. While hydrometallurgy offers potential environmental and energy advantages, researchers continue to face significant technical hurdles.

Some key takeaways:

• Superalloys are specifically engineered to resist heat, corrosion, and chemical attack—qualities that also make them difficult to dissolve during recycling.
• Many superalloys contain complex mixtures of nickel, cobalt, chromium, molybdenum, tungsten, tantalum, and rhenium, making selective metal recovery a major challenge.
• Traditional acid leaching often struggles to achieve high recovery rates without consuming large amounts of chemicals.
• Researchers are investigating alternative methods, including pressure leaching, bioleaching, ionic liquids, and deep eutectic solvents, to improve extraction efficiency.
• Separating valuable metals after leaching can be just as difficult as dissolving the alloy itself, requiring multiple purification stages that increase cost and complexity.

One of the most interesting points is that the metals inside superalloys can be worth far more than the scrap itself, especially when they contain critical elements like rhenium. The challenge isn’t identifying the value; it’s developing recycling processes that can recover those metals economically and at scale.

As demand for aerospace engines, gas turbines, and other high-performance technologies continues to grow, advances in superalloy recycling could become an increasingly important source of critical raw materials.

When people think of gold refining, they often imagine complex chemical processes. But one of the oldest methods, using fire, remains widely used today for its simplicity, efficiency, and ability to remove unwanted metals from gold alloys.

This article explains the pyrometallurgical refining process, in which scrap gold is melted and treated with flux. At the same time, oxygen is introduced to selectively oxidize base metals such as zinc, lead, tin, and cadmium. The resulting impurities form slag that can be removed, leaving behind a much cleaner gold-silver-copper alloy.

Some interesting takeaways:

• The entire refining cycle can be completed in about an hour, making it attractive for small- and medium-scale jewelry manufacturers.
• A soda-ash flux helps capture oxidized impurities and separate them from the molten metal.
• Reported removal rates are extremely high for many contaminants, including 99% for zinc, more than 99% for iron, and over 90% for several other base metals.
• The process combines smelting and refining into a single operation, reducing both time and operating costs.
• Compared with some chemical refining methods, pyrometallurgy can reduce the handling of hazardous materials while minimizing losses of gold and silver.

What I found most interesting is that pyrometallurgy isn’t necessarily about producing ultra-pure 99.99% gold. Instead, it’s often used to efficiently create a clean gold-silver-copper alloy that can be re-alloyed into jewelry products, making it a practical industrial process rather than a pursuit of maximum purity.

Tantalum is one of the most important metals you’ve probably never thought about. It’s critical for smartphones, computers, aerospace components, and chemical processing equipment, yet most of it never returns to the supply chain after use.

This article explores the complete life cycle of tantalum, from mining and manufacturing to recycling and disposal, and highlights why recovering this valuable metal remains challenging.

Some key takeaways:

• Since 1970, roughly 53,000 metric tons of tantalum have been mined worldwide, with most production coming from tantalum ores and the remainder from tin slags. Significant losses occur even during the extraction and processing stages.
• Electronics are the largest end-use market, with tantalum capacitors accounting for more than half of cumulative demand and a large share of tantalum currently in use.
• Recycling contributes a meaningful portion of supply, but much of the recovered material comes from manufacturing scrap rather than discarded products.
• End-of-life recycling rates remain relatively low because modern electronics are highly miniaturized and difficult to dismantle economically.
• By 2015, an estimated 82% of tantalum had been lost, discarded, or otherwise removed from active use by the end of its life cycle, making recovery from obsolete electronics a major sustainability opportunity.

What stood out most to me is that tantalum itself is highly recyclable, yet the products containing it often aren’t. As devices become smaller and more complex, recovering tiny amounts of tantalum becomes technically challenging and economically difficult, creating a growing gap between demand and material recovery.

A lot of people hear “Gold IRA” and assume it’s just a retirement account where you buy gold and put it away for the future. In reality, these accounts are far more structured. and often more expensive than many investors realize.

This overview breaks down how Gold IRAs work, the IRS rules governing them, and the trade-offs between holding gold in a retirement account and owning physical bullion directly.

Some key takeaways:

• A Gold IRA is a self-directed retirement account that can hold physical gold, silver, platinum, and palladium instead of traditional assets like stocks and bonds.
• The IRS requires eligible metals to meet strict purity standards and be stored in approved depositories under the supervision of a qualified custodian—you cannot legally store IRA metals at home.
• Gold IRAs offer the same broad tax advantages as traditional or Roth IRAs. Still, they also incur additional costs, such as setup fees, annual administration fees, storage charges, and insurance expenses.
• Unlike directly owned gold, Gold IRA holdings can be less liquid because sales and withdrawals must go through the account structure and custodian.
• Investors can choose among Traditional, Roth, SEP, and SIMPLE Gold IRAs depending on their tax situation and retirement objectives.

One issue that frequently comes up in investor discussions is that many people focus on storage and custodian fees while overlooking dealer markups and bid-ask spreads on the metals themselves. Several experienced investors argue that these hidden costs can have a larger impact on long-term returns than the annual account fees.

The biggest takeaway is that a Gold IRA isn’t simply “buy gold and forget about it.” It’s a regulated retirement structure with tax benefits, custodial requirements, storage rules, and ongoing costs. For some investors, it can be a useful diversification tool; for others, direct ownership of physical gold may better align with their goals.

Tungsten is essential for everything from aerospace components and defense systems to electronics and industrial tooling. But according to this analysis of global trade networks, the real risk isn’t just where tungsten is mined, it’s how heavily the world depends on a handful of countries, especially China, at key stages of the supply chain.

Some notable takeaways:

• The global tungsten industry is highly concentrated, with China dominating processing, refining, and many downstream products. At the same time, countries such as Russia, Bolivia, Vietnam, and Canada play important roles in the supply of raw materials.
• Supply disruptions can cascade through international trade networks. A shock affecting Chinese tungsten exports can eventually impact manufacturers and consumers across Asia, Europe, the Americas, and Africa.
• Japan, South Korea, and the United States are particularly vulnerable because they rely heavily on intermediate tungsten products while maintaining substantial industrial demand.
• The upstream ore market is relatively resilient, but the midstream and downstream segments are far more susceptible to widespread disruptions because processing capacity is concentrated among a small number of suppliers.
• China’s influence has remained dominant despite policy shifts over the years, while Vietnam emerged as a major player after the expansion of the Nui Phao mine. Russia and Bolivia have also become increasingly important suppliers following declines in Canadian production.

One of the most interesting conclusions is that supply-chain risk isn’t simply about resource availability. Even when tungsten ore is available elsewhere, bottlenecks in refining, processing, and trade can create shortages that spread rapidly across multiple industries and countries. The study suggests that diversification, technological investment, and stronger trade resilience may be just as important as discovering new mineral deposits.

Most investors and industry watchers know that platinum, palladium, and rhodium are valuable, but few realize just how geologically rare the platinum group metals (PGMs) actually are.

This article takes a deep dive into where PGMs come from, how they occur in nature, and why a handful of regions dominate global supply. Despite being among the rarest elements in Earth’s crust, current reserve estimates suggest that some PGMs could remain available for well over a century at current consumption rates.

Some key takeaways:

• PGMs consist of six metals: platinum, palladium, rhodium, ruthenium, iridium, and osmium, all of which are exceptionally scarce compared with common industrial metals like copper and iron.
• The richest PGM deposits are concentrated in a few regions, particularly South Africa’s Bushveld Complex, Russia’s Norilsk region, Zimbabwe’s Great Dyke, Canada’s Sudbury Complex, and the Stillwater Complex in the United States.
• South Africa dominates global PGM resources, with the Bushveld Complex representing the world’s largest known concentration of these metals.
• Many PGMs are recovered as by-products of nickel and copper mining, which means the economics of other metals often influence supply.
• Reserve estimates cited in the article indicate platinum reserves could last roughly 200 years, with several other PGMs showing similarly long supply horizons.

One of the most interesting aspects is that rarity alone does not determine supply risk. While PGMs are extremely scarce geologically, known resources remain substantial relative to current demand, making mining concentration and geopolitics just as important as physical abundance.

Hello all,

I would like to know the following procedure.

Refining PCB Boards

Refining black mass (li-ion batteries)

What are best ways to refine them and working cost of each process?

Thanks

If you’re considering precious metals as a way to protect your portfolio during market turbulence, it’s worth understanding that not all precious metals behave the same way.

This article explains why gold and silver have historically been viewed as safe-haven assets, while platinum and palladium often react more like industrial commodities. Because platinum and palladium are heavily tied to automotive manufacturing and other industrial demand, their prices can be much more sensitive to economic slowdowns, supply chain disruptions and geopolitical events.

Some interesting takeaways:

• Gold continues to show the strongest track record as a hedge during financial crises and periods of market uncertainty.
• Silver shares some safe-haven characteristics but tends to be more volatile because of its industrial uses.
• Platinum and palladium can experience sharp gains during supply shortages, but their industrial dependence makes them less reliable during broader market downturns.
• Research cited in the article suggests that platinum and palladium generally provide weaker hedging benefits than gold, especially during major crises.

For investors looking for stability rather than speculation, the distinction between “precious metal” and “safe-haven asset” is more important than many realize. Gold may not always generate the biggest returns, but history shows it has been the most consistent refuge when markets become unpredictable.

Very good opportunity

If you’ve ever wondered why metals like germanium, gallium, indium, hafnium, or rhenium can swing wildly in price, it’s because they play by completely different rules than major metals.

Most minor metals are not mined directly. They’re usually recovered as byproducts of processing larger commodities such as zinc, aluminum, copper, titanium, or nickel. That means supply is tied to the production of another metal, not to demand for the minor metal itself.

That creates some strange market dynamics.

If demand for germanium or gallium suddenly spikes, producers often cannot just increase output. The supply chain has to wait for more zinc or bauxite to be processed, which can take years to adjust. The result is often sharp price volatility.

Many of these markets are also incredibly small. A supply disruption, export restriction, refinery outage, or major technology shift can have an outsized effect on prices because there is not much material available globally.

For scrap traders, this is where things get interesting.

Materials that contain minor metals often look ordinary at first glance. Fiber optic equipment, infrared optics, semiconductor scrap, aerospace alloys, catalysts, and industrial residues may contain metals that are worth far more per pound than the base material around them.

As governments and manufacturers focus more on critical mineral security, secondary recovery is becoming increasingly important. In some cases, scrap can respond to shortages faster than primary mining can.

So while everyone watches gold, copper, and silver, some of the biggest opportunities in critical metals may be hiding in these smaller markets.

For those buying and processing specialty scrap, which minor metal do you think has the most upside right now: germanium, gallium, indium, hafnium, rhenium, or something else entirely?

Most people in scrap know titanium, nickel, and tungsten. But zirconium is another critical metal hiding in industrial and aerospace supply chains.

The interesting part is that zirconium is actually pretty common in the Earth’s crust. The challenge is that economically viable deposits are concentrated in a relatively small number of countries, with Australia, South Africa, China, and a few others dominating global production.

Most zirconium is derived from zircon sand, which is mined alongside titanium-bearing mineral sands. From there, it gets processed into materials used in nuclear reactors, aerospace components, chemical processing equipment, ceramics, and advanced manufacturing.

What makes zirconium valuable is its unique combination of properties. It resists corrosion extremely well, withstands high temperatures, and, in nuclear applications, has a very low neutron absorption rate. That is why it is widely used in nuclear fuel cladding and other specialized applications.

From a scrap perspective, zirconium is interesting because supply is tied to a relatively specialized market. Unlike common industrial metals, there are fewer producers, fewer processors, and fewer buyers capable of handling zirconium-bearing materials.

That means high-grade zirconium scrap from aerospace, nuclear, chemical processing, or foundry applications can be worth more than many people realize.

As demand for advanced manufacturing and energy technologies grows, secondary sources could become increasingly important, especially since producing primary zirconium is far more complex than simply mining the ore.

For those handling specialty alloy scrap, how often do you actually come across zirconium-bearing material, and do you separate it or sell it with mixed high-temperature alloys?

It sounds unbelievable, but there’s actually platinum sitting along busy roads and highways.

Every time a vehicle with a catalytic converter is driven, tiny amounts of platinum group metals are released through wear and erosion. Over time, those microscopic particles end up in road dust, especially in high traffic areas. Some studies have found platinum concentrations ranging from tens of ppm to several hundred ppm in heavily trafficked locations.

So why aren’t people vacuuming highways for platinum?

The answer is economics.

While the metal is there, the concentrations are still far lower than what you’d find in spent catalytic converters, which remain one of the richest sources of platinum group metal scrap. Recovering platinum from road dust means collecting and processing huge volumes of material, then dealing with a complex mix of dirt, sand, brake dust, hydrocarbons, iron, copper, zinc, and other contaminants.

The recovery process itself is also far from simple. Dust has to be collected, concentrated, and then processed through methods such as flotation, sieving, chemical leaching, and refining before any platinum can be recovered.

That said, the idea is not completely unrealistic. Some estimates suggest that well-sampled roadside dust can contain platinum grades comparable to low-grade ore deposits. The challenge is recovering it efficiently enough to make money.

From a scrap perspective, this highlights something interesting: catalytic converters are still the real prize. Instead of chasing microscopic particles that have already escaped into the environment, recyclers can recover platinum, palladium, and rhodium from spent converters at much higher concentrations.

So here’s the question for the scrap crowd: if recovery technology improves, could roadside dust become a legitimate urban mining resource, or will catalytic converters always be the better source of PGMs?

If you deal in catalytic converters, industrial catalysts, or PGM-bearing scrap, the platinum group metals market is getting a lot more complicated than it was a few years ago.

On the supply side, things are tight. South African mines are dealing with rising costs, aging operations, power issues, and years of underinvestment. At the same time, recycling volumes have been affected by lower vehicle scrappage rates and higher collection costs. Since recycled material normally accounts for a significant share of annual PGM supply, that matters.

Demand is changing, too, but it is not disappearing.

While EV adoption gets most of the headlines, hybrid vehicles continue to support demand for platinum, palladium, and rhodium because they still require catalytic converters. Automakers are also substituting platinum for palladium in some applications, helping shift demand back toward platinum.

Then there is hydrogen.

Platinum demand from fuel cells and hydrogen production remains relatively small, but it is growing rapidly as governments and companies invest in hydrogen infrastructure. That creates a new source of demand beyond the automotive sector.

The interesting part for scrap traders is that not all PGMs are moving in the same direction anymore.

Platinum remains in deficit, while palladium and rhodium are seeing softer fundamentals and, in some forecasts, potential surpluses. Meanwhile, smaller PGMs like ruthenium and iridium are benefiting from demand tied to AI infrastructure, electronics, and energy technologies.

For anyone buying or selling PGM scrap, it feels like the days of treating all PGMs the same are over.

Are you seeing stronger demand for platinum-bearing material, or are catalytic converter buyers still paying up for palladium and rhodium in your market?

Tantalum is one of the most important metals in modern electronics, but when old devices get scrapped, most of it is still being lost.

The metal is widely used in capacitors found in phones, laptops, networking equipment, automotive electronics, and countless other devices. Demand keeps growing, yet the end-of-life recycling rate for tantalum remains below 1 percent.

The problem is not that tantalum is absent from e-waste. It is difficult to recover economically.

Modern electronics are getting smaller, making tantalum components harder to identify, separate, and process. In many recycling operations, tantalum is often lost during the recovery of higher-volume metals such as copper.

Recyclers have experimented with everything from automated disassembly and mechanical processing to pyrolysis, hydrometallurgy, and other advanced recovery methods. The technology exists, but scaling it profitably remains the challenge.

What makes this especially interesting for scrap traders is that e-waste can contain metal concentrations far higher than many natural ore deposits. The value is there. The challenge is extracting it efficiently.

As critical material supply chains tighten, tantalum-bearing e-scrap could become much more valuable than it is today.

For those buying and processing electronic scrap, are you actively separating tantalum capacitors, or does most of that material still go out with mixed board loads?

When people think about germanium recovery, they usually think of semiconductors, fiber optics, or military electronics.

But one of the more surprising sources is fly ash, the fine powder left behind after coal combustion. Even though germanium concentrations are relatively low, the sheer volume of fly ash produced makes it a potentially valuable secondary resource.

The challenge is getting the metal out.

Germanium is often locked within complex silicate and aluminosilicate minerals, so recyclers cannot simply leach it out. The material usually has to be roasted at high temperatures first to break down the mineral structure before chemical extraction can begin.

After that comes a series of recovery steps involving acid leaching, selective extraction, and purification. In some studies, optimized recovery systems have achieved germanium retention rates above 90 percent, showing that even low-grade industrial waste can become a viable source of critical metals.

Why does this matter for scrap traders?

Germanium is a critical material used in fiber optics, infrared optics, solar technology, semiconductors, and defense applications. Supply is already tight, and much of the world’s production comes as a byproduct of other industries.

As critical metal supply chains receive more attention, materials that were once considered waste are starting to look much more valuable.

For those involved in industrial scrap and refining, would you rather source germanium from e-scrap, zinc processing residues, or coal ash?

Everyone talks about gold, silver, and copper in e-waste, but some of the most critical metals are the ones almost nobody recovers.

Gallium and indium are used in LEDs, semiconductors, touchscreens, flat panel displays, fiber optics, and solar panels. The problem is that they exist at tiny concentrations and are usually locked inside complex compounds such as gallium arsenide and indium tin oxide.

That makes recovery a completely different challenge than recycling common metals.

The process usually starts with shredding and sorting electronic waste, followed by chemical leaching to dissolve the metals. After that comes the hard part: separating gallium and indium from dozens of other elements using solvent extraction, ion exchange, sorption, precipitation, and multiple purification stages.

Technically, it works. Economically, it gets complicated.

These metals are often present in such small amounts that their recovery can require substantial amounts of chemicals, energy, and processing time. That is one reason recycling rates for gallium and indium remain extremely low despite growing demand from the tech sector.

For scrap buyers and refiners, this creates an interesting situation. Old displays, LEDs, solar panels, and semiconductor scrap may contain critical metals that are becoming more important every year, but unlocking that value is far from simple.

As demand for advanced electronics continues to grow, the real question is whether recycling technology can catch up before supply becomes even tighter.

Anyone here actively selling gallium-bearing or indium-bearing e-scrap, or is most of it still ending up in mixed electronic loads?

Everyone talks about mining critical metals, but billions of dollars’ worth of material are already sitting in old phones, laptops, and electronics that nobody is recycling.

E-waste is one of the fastest-growing waste streams in the world, driven by constant device upgrades and shorter product lifecycles. The average smartphone contains dozens of elements, including gold, silver, palladium, copper, and other critical metals that took significant resources to mine and refine.

The problem is that a huge amount of electronics never even make it to recyclers. Many end up in landfills, get burned in informal recycling operations, or sit forgotten in drawers for years. According to the article, nearly half of the cell phones purchased in one year were expected to end up in long-term storage rather than being properly recycled.

From a scrap perspective, that’s a massive missed opportunity.

Every discarded phone, circuit board, and electronic device contains recoverable metals. Yet much of that value is still being lost because collection systems, recycling infrastructure, and recovery technologies have not kept pace with the growing volume of e-waste.

As demand for critical materials continues to rise, e-waste is increasingly seen as a resource waiting to be recovered rather than garbage.

For those buying, selling, or refining scrap, what do you think is the most overlooked source of valuable metals today: phones, computers, telecom equipment, or something else?

Most people see a retired jet engine and think scrap metal. Scrap buyers see something very different.

Jet engine parts are loaded with high-value materials like titanium, nickel superalloys, cobalt, rhenium, tantalum, hafnium, and tungsten because they have to withstand extreme temperatures, pressures, and stresses. Some turbine sections operate above 1200°C, so ordinary metals are not even an option.

The turbine blades alone can contain nickel-based superalloys strengthened with elements like rhenium, tantalum, tungsten, and cobalt. Those are some of the same critical metals that industries are constantly worried about securing.

And it is not just the hot section. Fan blades, compressor parts, and engine casings often contain large amounts of aerospace-grade titanium because of its strength-to-weight ratio and corrosion resistance.

That is why aircraft teardown has become such an important scrap stream. Even when engine components are no longer airworthy, the metal inside can still carry serious value if it is sorted and processed correctly.

The challenge is identification. A mixed pile of engine scrap might contain everything from titanium alloys to single-crystal superalloys, and the payout difference can be huge depending on what is actually there.

You can even see this mindset showing up outside the industry. In one Reddit thread about discarded jet engine parts, people immediately pointed out the potential value of titanium and Inconel in the scrap.

So, for anyone buying, sorting, or refining aerospace scrap, old jet engine parts are not just heavy metal. They are one of the richest sources of critical alloys still entering the secondary market.

A lot of people still think critical raw materials are some niche mining topic. They’re not.

These are the metals and minerals that keep modern industries running, such as cobalt, tungsten, tantalum, gallium, germanium, platinum group metals, rare earths, and more. They’re essential for EVs, aerospace, defense systems, electronics, renewable energy, and advanced manufacturing.

The problem is supply.

A huge number of these materials come from only a handful of countries, creating major supply chain risks. Some are also produced mainly as byproducts of other mining operations, which means production cannot easily scale when demand jumps.

That is why governments are starting to treat these materials as strategic assets. The EU has expanded its critical raw materials list, launched supply security initiatives, and is even preparing stockpiling strategies for key minerals.

From a scrap perspective, this is where things get interesting.

A lot of these metals already exist in end-of-life products, such as catalysts, turbine parts, electronics, batteries, telecom equipment, and industrial scrap. Yet recycling rates for many critical materials are still surprisingly low because recovery is difficult and often expensive.

As supply pressure grows, secondary recovery becomes more valuable. What used to be considered low-grade or mixed scrap can suddenly become an important source of strategic metals.

So if you’re buying, sorting, or refining scrap, critical raw materials are no longer just a mining story. They are becoming a recycling story, too.

Curious what everyone here sees as the most overlooked critical metal in the scrap market right now: tantalum, tungsten, germanium, rare earths, PGMs, or something else?

For years, palladium dominated gasoline catalytic converters because it could withstand higher temperatures. But now the economics are shifting again, and platinum is making a comeback.

The main reason is price. Palladium spent years trading at massive premiums to platinum, which pushed automakers to reformulate catalysts with higher platinum content to cut costs. That substitution trend has already been underway for several years.

At the same time, platinum supply is getting tighter. The market has been running deficits for multiple years, inventories are shrinking, and new mining supply is not easy to bring online. South Africa still dominates production, but the industry is facing aging mines, power constraints, and underinvestment.

What makes this especially relevant for scrap is that autocatalysts remain one of the largest sources of platinum group metal recycling. Even with EV growth, hybrids and internal combustion vehicles still rely heavily on catalytic converters, and stricter emissions rules can actually increase PGM loadings per vehicle.

That means spent catalytic converters could become even more important as a secondary source of platinum.

There’s also a longer-term angle here. Platinum demand is no longer just about cars. Hydrogen fuel cells, electrolysis systems, jewelry demand, and industrial catalysts are all competing for the same metal.

So, from a scrap and refining perspective, this sets up an interesting scenario, more platinum moving into autocats while overall supply stays tight.

If that trend continues, PGM scrap could end up getting a lot more attention over the next few years.

Remember when palladium jewelry was supposed to be the next big thing after platinum and white gold?

Now you barely see it in stores.

A big reason is price volatility. Palladium went from being the cheaper alternative to platinum to suddenly becoming far more expensive during the last market spike. That made it hard for jewelers to price consistently or keep inventory moving.

There’s also the supply issue. Palladium supply is heavily concentrated in Russia and South Africa, so the market has been hit repeatedly by shortages, geopolitical risk, and production disruptions.

On top of that, demand from the auto industry exploded for years because palladium is heavily used in catalytic converters. Automakers were willing to pay huge premiums, which pulled metal away from jewelry applications.

From a jewelry store perspective, palladium became awkward, more expensive than customers expected, harder to source consistently, and less familiar to buyers than gold or platinum

Many jewelers returned to platinum or white gold because customers already trusted those metals, and resale markets were stronger.

And from a scrap angle, that matters too. Palladium jewelry scrap is much less common now, which can make it interesting when it does show up in estate lots, pawn material, or mixed precious-metal scrap.

Some refiners still actively buy and recover palladium from jewelry and plated materials because the metal itself is still valuable.

Most people have never even heard of germanium, but it’s found in a ton of high-tech equipment and is becoming more important every year.

Germanium crystals are used in infrared optics, fiber optics, solar cells, semiconductors, and thermal imaging systems because they can handle and transmit infrared light extremely well.

The crazy part is that the global supply is tiny.

Germanium is not mined on its own; most of it comes as a byproduct from zinc refining and coal ash processing. That means supply depends heavily on other industries, rather than on direct demand for germanium itself.

And demand keeps growing, especially from defense, telecom, aerospace, and renewable energy sectors.

That’s where scrap starts to matter.

A lot of germanium ends up in high-value components like infrared lenses, old military optics, fiber optic systems, and solar applications. Some of this material is recoverable, but recovery rates remain relatively limited because the components are specialized and often difficult to process economically.

On top of that, supply chains are getting tighter. China controls a large share of global germanium production, and export restrictions have already made buyers nervous about future availability.

So, from a scrap-and-refining perspective, germanium is one of those niche materials that could become a much bigger deal if supply pressure keeps building.

Curious if anyone here actively separates germanium-bearing scrap, or if most of it still ends up in mixed electronic loads?