January
International Day of Clean Energy Nickel
The UN's International Day of Clean Energy isn't nickel-specific, but nickel-rich cathode chemistries are an increasingly important part of the EV battery supply chain alongside nickel's older, larger role in stainless steel.
International Day of Clean Energy Lithium
The UN's International Day of Clean Energy isn't lithium-specific, but lithium-ion batteries are foundational to both EV adoption and grid-scale energy storage — the two demand drivers the day is meant to raise awareness of.
International Day of Clean Energy Cobalt
The UN's International Day of Clean Energy isn't cobalt-specific, but cobalt-based cathode chemistry remains a significant part of the EV battery supply chain this day is meant to draw attention to.
International Day of Clean Energy Neodymium
The UN's International Day of Clean Energy isn't neodymium-specific, but NdFeB permanent magnets are essential to both EV motors and wind-turbine generators — squarely inside the clean-energy supply chain this day is meant to spotlight.
International Day of Clean Energy Rare Earth Elements
The UN's International Day of Clean Energy isn't rare-earth-specific, but NdFeB permanent magnets made from rare earth elements (chiefly neodymium) are essential to EV motors and wind turbines.
International Day of Clean Energy Critical Minerals
The UN's International Day of Clean Energy is the most directly relevant official observance to the "critical minerals" category as a whole, since every metal in this grouping (lithium, cobalt, gallium, indium, tellurium, molybdenum, nickel) feeds into clean-energy, semiconductor, or battery supply chains.
MetalsCost Critical Minerals Day Critical Minerals
MetalsCost marks January 27 for critical minerals as a category — the day after the UN's International Day of Clean Energy, keeping the two adjacent on the content calendar given how closely related they are.
February
MetalsCost Nickel Day Nickel
MetalsCost marks February 9 for nickel — the date Axel Fredrik Cronstedt formally announced his discovery to the Royal Swedish Academy of Sciences in 1754.
MetalsCost Silver Day Silver
MetalsCost marks February 15 for silver — no single verified discovery or exchange-listing date could be pinned to silver within our research (it has been known and worked since antiquity), so this date is an evenly-spaced content-calendar placeholder, not tied to a specific historical event.
MetalsCost Aluminium Day Aluminium
MetalsCost marks February 18 for aluminium — the date Hans Christian Ørsted announced his isolation of the metal to the Royal Danish Society of Sciences and Letters in 1825, the earliest documented step toward aluminium as a known metal rather than a laboratory curiosity.
March
MetalsCost Copper Day Copper
MetalsCost marks March 10 for copper — one of the oldest metals worked by humans, with no single discovery date to reference. This is an evenly-spaced content-calendar placeholder, not tied to a specific historical event.
MetalsCost Platinum Day Platinum
MetalsCost marks March 24 for platinum. Platinum was documented in European scientific literature from the 1730s-40s, but no single, cleanly-dated discovery event was verified within our research, so this date is an evenly-spaced content-calendar placeholder.
April
International Silver Day Silver
April 7 was chosen for silver's atomic number, 47 (Ag47) — a genuinely global, industry-backed observance rather than a MetalsCost creation, marking silver's dual role as both a precious metal and, increasingly, an industrial one.
May
MetalsCost Palladium Day Palladium
MetalsCost marks May 18 for palladium. William Hyde Wollaston isolated palladium around 1802-03, but the historical record (he first offered it for sale anonymously in a Soho shop rather than publishing) doesn't preserve a single clean discovery day, so this date is an evenly-spaced content-calendar placeholder.
MetalsCost Rhodium Day Rhodium
MetalsCost marks May 25 for rhodium. Wollaston isolated rhodium in 1803 and published his findings in 1804, but no single clean discovery day was verified within our research, so this date is an evenly-spaced content-calendar placeholder.
June
MetalsCost Neodymium Day Neodymium
MetalsCost marks June 18 for neodymium — the date Carl Auer von Welsbach announced his discovery to the Vienna Academy of Sciences in 1885.
MetalsCost Rare Earths Day Rare Earth Elements
MetalsCost marks June 19 for the rare earth elements as a group — the day after the neodymium discovery date, since neodymium is the one rare earth this site tracks a live price for.
July
MetalsCost Lead Day Lead
MetalsCost marks July 8 for lead — one of the oldest metals worked by humans, with no single discovery date to reference. This is an evenly-spaced content-calendar placeholder, not tied to a specific historical event.
MetalsCost Tin Day Tin
MetalsCost marks July 22 for tin — one of the oldest metals worked by humans, with no single discovery date to reference. This is an evenly-spaced content-calendar placeholder, not tied to a specific historical event.
August
MetalsCost Lithium Day Lithium
MetalsCost marks August 12 for lithium. Johan August Arfwedson discovered it in 1817 while analyzing petalite ore, but no single day within that year was verified, so this date is an evenly-spaced content-calendar placeholder.
MetalsCost Gallium Day Gallium
MetalsCost marks August 27 for gallium — the date Paul-Émile Lecoq de Boisbaudran discovered it by spectroscopy in 1875, the first of Dmitri Mendeleev's predicted "missing elements" to actually be found, a real validation moment for the periodic table itself.
September
MetalsCost Indium Day Indium
MetalsCost marks September 3 for indium. Ferdinand Reich and Hieronymous Theodor Richter discovered it in 1863 during spectral analysis of zinc ore, but no single day within that year was verified, so this date is an evenly-spaced content-calendar placeholder.
MetalsCost Cobalt Day Cobalt
MetalsCost marks September 10 for cobalt. Georg Brandt is credited with identifying cobalt around 1735, but sources disagree on the exact year of formal announcement and no single day is preserved, so this date is an evenly-spaced content-calendar placeholder.
MetalsCost Molybdenum Day Molybdenum
MetalsCost marks September 17 for molybdenum. Peter Jacob Hjelm first isolated metallic molybdenum in 1781, but no single day within that year was verified, so this date is an evenly-spaced content-calendar placeholder.
MetalsCost Uranium Day Uranium
MetalsCost marks September 24 for uranium — the date Martin Heinrich Klaproth announced his discovery to the Royal Prussian Academy of Sciences in 1789.
October
MetalsCost Iron Day Iron Ore
MetalsCost marks October 12 for iron — one of the oldest metals worked by humans, with no single discovery date to reference. This is an evenly-spaced content-calendar placeholder, not tied to a specific historical event.
MetalsCost Tellurium Day Tellurium
MetalsCost marks October 26 for tellurium. Franz-Joseph Müller von Reichenstein first investigated it in 1782, but the exact day of his initial discovery (as opposed to later publication dates) was not verified within our research, so this date is an evenly-spaced content-calendar placeholder.
December
MetalsCost Zinc Day Zinc
MetalsCost marks December 8 for zinc. Andreas Sigismund Marggraf is credited with isolating pure metallic zinc in 1746, but no single day within that year was verified, so this date is an evenly-spaced content-calendar placeholder.
MetalsCost Gold Day Gold
MetalsCost marks December 31 for gold — the date COMEX gold futures trading began in 1974, the same day the US lifted its decades-long ban on private gold ownership, opening the modern era of gold as a freely tradeable investment asset for American citizens.
