Who makes copper for AI data centers

Copper (busbars, cable, cold plates, transformer windings)

Refined copper metal and copper products — wire, cable, sheet and strip — used as the primary electrical conductor and a thermal-transfer material throughout the data center.

Copper carries current from the utility interconnect down to the chip, and carries heat away from it. It is the conductor in busbars and switchgear (Layers 6, 7), in low-voltage rack power distribution (Layer 4), in the windings inside every transformer (Layer 6), and — as engineered cold plates — the material in direct contact with GPUs and CPUs in liquid-cooled racks (Layer 5). The chain runs from mined ore through smelting and refining to finished wire, cable, sheet and machined parts, so data-center demand sits downstream of mining output, smelter capacity and scrap availability that are set mostly by other industries (grid buildout, electric vehicles, construction). AI racks pull far more power through a much smaller footprint than legacy enterprise IT, which means more copper cross-section per rack for busbars and windings, and cold plates add a use of copper that air-cooled racks never needed. For investors, the relevant questions are less about data centers specifically and more about global refined-copper supply and price: mine output growth, smelter bottlenecks, and how much of a given producer's book is copper products versus other metals. Companies further down the chain — magnet wire, cable, cold-plate fabrication — are the ones with more direct, visible data-center exposure.

AI delta: Denser racks carry more current at lower voltage and add direct-contact liquid cooling, both of which increase the amount of copper needed per rack and per megawatt of IT load.

Appears at:Edge / micro Enterprise / small colo Large colo / hyperscale building AI campus GW-class campus· cooling:any — Present at every scale as wire and busbar; the cold-plate use is limited to liquid and hybrid deployments, while busbars, cable and transformer windings apply regardless of cooling approach.

Companies on this part (0)

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Company	Role	Ownership	Ticker	Price	1d	Confidence	Note

Miners 10.01a

Company	Role	Ownership	Ticker	Price	1d	Confidence	Note
Anglo American	manufacturer	public	AAL.L	3663 GBp	+1.0%	inferred
Antofagasta	manufacturer	public	ANTO.L	3048 GBp	+1.1%	disclosed	· source
BHP	manufacturer	public	BHP	77.85 USD	-0.2%	inferred
First Quantum	manufacturer	public	FM.TO	33.44 CAD	-1.8%	disclosed	· source
Freeport	manufacturer	public	FCX	65.18 USD	+0.9%	disclosed	· source
Glencore	manufacturer	public	GLEN.L	538 GBp	+0.3%	disclosed	· source
Ivanhoe	manufacturer	public	IVN.TO	9.16 CAD	-0.1%	inferred
Lundin	manufacturer	public	LUN.TO	29.50 CAD	-0.0%	inferred
Rio Tinto	manufacturer	public	RIO	83.42 USD	-1.4%	inferred
Southern Copper	manufacturer	public	SCCO	185 USD	+1.1%	inferred
Teck	manufacturer	public	TECK	59.05 USD	+0.2%	disclosed	· source
Zijin	manufacturer	public	601899.SS	28.79 CNY	+3.4%	inferred
Codelco	manufacturer	state				inferred

Refining and products 10.01b

Company	Role	Ownership	Ticker	Price	1d	Confidence	Note
Aurubis	manufacturer	public	NDA.DE	131 EUR	-0.4%	disclosed	· source
Hindalco	manufacturer	public	HINDALCO.NS	870 INR	-1.8%	inferred
Jiangxi Copper	manufacturer	public	600362.SS	36.92 CNY	+1.7%	inferred
Mitsubishi Materials	manufacturer	public	5711.T	4276 JPY	-2.2%	inferred
Mueller Industries	manufacturer	public	MLI	54.11 USD	-0.6%	disclosed	· source
Nexans	manufacturer	public	NEX.PA	114 EUR	-0.7%	inferred
Prysmian	manufacturer	public	PRY.MI	99.08 EUR	-0.8%	inferred
KME	manufacturer	private				inferred
Southwire	manufacturer	private				disclosed	· source
Wieland	manufacturer	private				disclosed	· source

Nearby parts

Children: Miners, Refining and products
Next in layer: Aluminum
Layer: Layer 10 — Materials & upstream inputs

Watch

TSMC's First Breakthrough: The Copper/Low-K Interconnect Transition

Asianometry — history of why copper displaced aluminum for high-conductivity interconnects

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Questions about copper

What is copper?: Refined copper metal and copper products — wire, cable, sheet and strip — used as the primary electrical conductor and a thermal-transfer material throughout the data center.
How does AI change demand for copper?: Denser racks carry more current at lower voltage and add direct-contact liquid cooling, both of which increase the amount of copper needed per rack and per megawatt of IT load.

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