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Copper

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Copper Soars Beyond 14,500 as Tariffs Tighten Global Supply
metals1 month ago

Copper Soars Beyond 14,500 as Tariffs Tighten Global Supply

Copper futures in London surged to a record above $14,500/ton as tariff front-running flooded US warehouses and tightened supply elsewhere. The move is described as a repricing of scarcity driven by weather, war, and policy, with three-month LME copper near $14,533/ton and the rally up about 17% this year and 47% over 12 months, underscoring that copper’s surge reflects tighter physical availability for data centers, grids, and electrification projects rather than a simple demand spike.

via Crude Oil Prices Today | OilPrice.com|
#commodities#copper#lme
Copper Climbs to Record Peak as Smelting Margins Erode
metals1 month ago

Copper Climbs to Record Peak as Smelting Margins Erode

Copper hit an all-time high on the LME amid a tight supply chain, but smelters are losing money turning concentrate into metal as TC/RC charges collapse to zero and spot rates turn negative. China remains the dominant processor, Indonesia expands capacity, and mine-supply constraints in Chile, Congo, and other regions, along with tariff-driven trade shifts, are reshaping who captures value in the copper market—pointing to a multi-year squeeze driven by ore control rather than refining margins.

via Crude Oil Prices Today | OilPrice.com|
#copper#metals#smelting
Single-Atom Copper Catalyst Enables Reusable, Light-Driven N-Demethylation
chemistry1 month ago

Single-Atom Copper Catalyst Enables Reusable, Light-Driven N-Demethylation

A recyclable, noble-metal-free photocatalyst composed of atomically dispersed Cu on functionalized graphitic carbon nitride (Cu@f-gC3N4) enables selective N-demethylation and N-dealkylation of a broad range of tertiary amines under 390 nm light in an O2 atmosphere. The reaction tolerates diverse substrates, including pharmaceutically relevant molecules, and can be scaled to 10 mmol with catalyst reuse exceeding ten cycles. Mechanistic studies (radical trapping, isotope labeling, in situ FTIR, EPR, XANES/EXAFS and DFT) support a photoredox pathway in which amine oxidation generates ammonium-like intermediates, O2 is reduced to superoxide to abstract a methyl hydrogen, forming an iminium that hydrolyzes to the secondary amine; the Cu single-atom sites and the functionalized g-C3N4 support drive charge separation and O2 activation, enabling practical late-stage amine diversification without sacrificial reagents.

via Nature|
#chemistry#copper#graphitic-carbon-nitride
US backs Congo cobalt-copper mines to counter China's rare-earth edge
world3 months ago

US backs Congo cobalt-copper mines to counter China's rare-earth edge

The U.S. backs Virtus Minerals to develop Chemaf’s Étoile and Mutoshi cobalt and copper mines in the Democratic Republic of the Congo—the first U.S.-owned operator there in over a decade—aiming for about 75,000 tonnes of copper and 20,000 tonnes of cobalt a year, exported via the Lobito Corridor to Angola with a $5 billion rail investment; officials call it a flagship investment to diversify critical mineral supply chains and counter China’s dominance in Africa.

via Fox News|
#cobalt#copper#drc
Pyrenees cave reveals 4,000 years of copper work at extreme altitude
archaeology4 months ago

Pyrenees cave reveals 4,000 years of copper work at extreme altitude

In a high-altitude Pyrenees cave (2,235 m) called Cova 338, archaeologists found 23 fire pits, malachite fragments, pottery, bones, and ornaments—plus remains of a child—showing repeated, organized visits over more than 4,000 years (from the late Neolithic to the Bronze Age). The site appears to have been used to heat and process copper-bearing rock, not necessarily smelted there, indicating sophisticated resource extraction and knowledge transfer in an otherwise remote location. Future work aims to confirm ore sources and the full metallurgical sequence.

via Space Daily|
#archaeology#copper#high-altitude
Trump Modifies 232 Tariffs on Aluminum, Steel, Copper with Expanded Derivative Rules
economy4 months ago

Trump Modifies 232 Tariffs on Aluminum, Steel, Copper with Expanded Derivative Rules

President Trump issues a new proclamation altering the Section 232 tariff regime for aluminum, steel, and copper imports, effective June 8, 2026. The changes expand derivative coverage (including agricultural equipment and certain residential HVAC components) and adjust tariffs: 25% on listed metal products, 10% on derivative articles that are entirely US-made in metal content, and a temporary 15% reduced rate for selected derivative products; aluminum lithographic plates and steel racks are now covered derivatives; the threshold for “made entirely from American” drops from 95% to 85%. For Canada and Mexico under USMCA, 25% applies only to non-U.S. content with a floor of 15%. Beginning 2028, rates will align with Proclamation 11021. The Secretary of Commerce and other agencies will monitor and adjust as needed to address national security concerns and ensure implementation across HTSUS changes.

via The White House (.gov)|
#aluminum#copper#economy
Green Rocks Reveal Ancient Copper Mining in a High-Altitude Pyrenees Cave
science5 months ago

Green Rocks Reveal Ancient Copper Mining in a High-Altitude Pyrenees Cave

Archaeologists excavating Cave 338 in the Pyrenees uncovered burnt green malachite fragments, hearths, jewelry, and human remains dating roughly 5,500 to 4,000 years ago, suggesting prehistoric people intermittently used the high-altitude cave to process copper rather than merely passing through, challenging the idea that mountains were marginal for ancient economies.

via Gizmodo|
#archaeology#cave-338#copper
Green rocks in Pyrenees cave reveal Copper Age copper-smelting site
archaeology5 months ago

Green rocks in Pyrenees cave reveal Copper Age copper-smelting site

Archaeologists excavating a high-altitude cave in Girona, Spain (2,235 m/7,333 ft) uncovered nearly 200 malachite fragments, charcoal-rich pits, and other artifacts suggesting prehistoric people repeatedly processed green copper ore to extract copper, constituting a Copper Age copper-smelting camp active for more than 4,000 years, with intensive use between 3600–2400 BCE. The finds—human remains, animal bones, pottery, and cultural ornaments—indicate long-term occupation and resource exploitation in the Pyrenees, and researchers plan to confirm the malachite identification and continue excavations to understand the site’s purpose.

via Live Science|
#archaeology#copper#copper-age
Doped nanotube fibers push toward copper-like wiring performance.
science5 months ago

Doped nanotube fibers push toward copper-like wiring performance.

Researchers doped bulk double-walled carbon nanotube fibers with tetrachloroaluminate (AlCl4−), boosting mean conductivity about 10x on average (up to 15x in the best fibers) and reaching roughly 70% of aluminum’s conductivity; when normalized by density, the doped fibers can outperform copper, suggesting potential for lightweight, high-capacity wiring. However, the dopant is air-sensitive and short-lived (weeks) unless the fibers are polymer-coated, posing stability and scalability challenges even as the approach identifies a promising dopant strategy.

via Ars Technica|
#carbon-nanotubes#conductivity#copper
Green Relic Hand: Copper Coin Preserves 150-Year-Old Hungarian Infant
archaeology5 months ago

Green Relic Hand: Copper Coin Preserves 150-Year-Old Hungarian Infant

Archaeologists in southern Hungary uncovered a 150-year-old infant hand preserved as a green mummy after a grieving mother reportedly placed a 19th‑century Kreuzer copper coin in the child’s fist. High copper exposure caused an antimicrobial reaction that preserved soft tissue, with copper levels about 500 times typical. The ritual, likely intended to pay Saint John the Baptist for heavenly baptism for an unbaptized infant, also involved sealing the child in a pot and burying it secretly; researchers found two other similar, inexplicably preserved infant burials nearby. This represents a rare case of copper-driven natural mummification rather than a deliberate process.

via ZME Science|
#archaeology#copper#hungary