More Copper Refined Than MinedNarrow moat

KGHM Polska Miedź (KGH) — moat facet

A third of KGHM's refined copper is made from bought-in material, which is a second business sharing the smelters.

KGHM refines considerably more copper than it digs up, and the difference is a business most descriptions of the company leave out.

Where the refined copper came from, H1 2026 (kt)183,6KGHM's own concentrate107,9Purchased materialTotal electrolytic copper 291,5 kt, of which 63% from the mine
A third of the output is a smelting business earning a toll, sharing plants with a mining business earning a margin.

In the first half of 2026 the Polish assets produced 291,5 thousand tonnes of electrolytic copper, of which 183,6 thousand came from KGHM's own concentrate1. The remaining third was made from material bought in — concentrate and scrap from other people's mines and other people's wiring — at a cost of 8 335 million złoty across 20252.

That is a second business sharing a set of smelters with the first. The mine supplies what it can; the metallurgical plants at Glogow, Legnica and Cedynia are sized larger than the mine and fill the gap commercially. The concentrator plants turn ore into roughly two million tonnes of concentrate a year at 23% copper3, and the smelters take that plus whatever else the market offers.

The advantage is real and modest. A miner without smelters sells concentrate and pays whatever treatment and refining charge the world's smelters are quoting; KGHM captures that charge internally on its own material and earns it externally on everybody else's. It also means the fixed cost of a large metallurgical complex is spread across more tonnes than the mine alone could provide.

It goes further downstream than most miners do. The Cedynia division turns cathode into wire rod and oxygen-free rod — 279,9 thousand tonnes of it in 20254 — which is a manufactured product sold to named industrial customers rather than a commodity sold to a market. The February 2026 annex extending the agreement with the NKT Group to December 20365 is what that looks like in practice.

And the customers are close. Of the parent's first-half revenue, about 78% went to end customers in Europe, with 4 845 million złoty of 21 927 million staying in Poland and Germany taking 2 815 million6. A European copper supplier selling to European cable makers is a genuinely different proposition from a miner shipping concentrate to Chinese smelters.

The limit is that none of this is scarce. Smelting is a competitive, capital-intensive, low-margin trade priced by treatment charges that are set globally, and the purchased-feed business rises and falls with the availability of scrap. The measure is the share of refined output coming from own concentrate — 63% in the first half of 20267 — because that is the part with a mine behind it.

Moat trajectory: Holding steady

The smelting business grew - electrolytic copper output rose 7,0% in the first half of 2026 - but only because purchased feed grew. Own-concentrate production rose 0,6%, so the metallurgical franchise is holding rather than compounding.

The number that tests this moat
Moat Explorer calc
Refined output from KGHM's own concentrate
183,6 of 291,5 thousand tonnes - 63%

The smelters are sized larger than the mines and the gap is filled with purchased concentrate and scrap. Refining bought-in material earns a treatment charge set globally; mining KGHM's own ore is the part nobody else can do. Every point this share falls is a point of output whose margin is a toll rather than a mining margin.

Source: KGHM Group Management Board's report for H1 2026 ↗
Aspects of the moat
DIG DEEPER 01
Eight Billion Złoty of Other People's Metal
29% of the parent's costs go on concentrate and scrap to fill smelters the mine cannot.
DIG DEEPER 02
Two Million Tonnes of Concentrate
The fourteen-fold upgrade between mine and smelter, and where the silver credit is actually won.
DIG DEEPER 03
The Wire Rod at the End of the Line
Half the copper leaves as a specified product with named buyers rather than as anonymous cathode.
DIG DEEPER 04
Seventy-Eight Percent of It Goes to Europe
KGHM ships cathode and rod to European industry, not concentrate to Chinese smelters.
⚠ Threats to the moat
⚠ THREAT 01
Refining Is a Toll at Somebody Else's Price
Treatment charges are set globally and the feed price rises with the metal - the spread is nobody's decision.
⚠ THREAT 02
The Energy Bill Under a Smelter
Three metallurgical plants drawing Polish power, against a self-generation target of 220 megawatts.
References
  1. ReportedIn the first half of 2026 the Polish assets produced 291,5 thousand tonnes of electrolytic copper, of which 183,6 thousand came from KGHM's own concentrate.
    KGHM Polska Miedz S.A. Group - Management Board's report on activities in the first half of 2026, production, unit costs and employment (electrolytic copper of 291,5 thousand tonnes of which 183,6 thousand from own concentrate, metallic silver of 696,7 tonnes, the pre-precious-metals-credit unit cost of 52 201 złoty a tonne against a total unit cost of 17,415, C1 of 2,44 USD/lb, average group employment of 34 543 including 18 870 at the parent, and payable copper from the international assets of 59,5 thousand tonnes of which Sierra Gorda 40,2 and Robinson 17,7) — H1 2026 · publ. August 2026 · source ↗
  2. ReportedThe remaining third was made from material bought in — concentrate and scrap from other people's mines and other people's wiring — at a cost of 8 335 million złoty across 2025.
    KGHM Polska Miedz S.A. Group consolidated financial statements for 2025 (group revenue of 36 366m złoty with the parent at 30 964m and KGHM INTERNATIONAL at 3 439m; parent copper revenue of 22 378m and silver revenue of 6 133m; minerals extraction tax of 4 693m against 3 865m in 2024 and 3 496m in 2023; employee benefits of 6 303m; purchased metal-bearing materials of 8 335m; parent net profit of 1 946m against a group profit of 3 688m; total assets of 58 240m, equity of 32 898m and involvement in the Sierra Gorda joint venture of 10 250m including 8 436m of loans) — FY2023-FY2025 · publ. 10 March 2026 · source ↗
  3. ReportedThe concentrator plants turn ore into roughly two million tonnes of concentrate a year at 23% copper, and the smelters take that plus whatever else the market offers.
    KGHM Polska Miedz - mining and enrichment (geological resources at 31 December 2025 of 1 858 259 thousand tonnes of ore containing 30 387 thousand tonnes of copper and 91 837 tonnes of silver; a deposit dipping from a few hundred metres to 1 500; the statement that current deposits will suffice for the next 40-50 years of mining activities; concentrator output of about two million tonnes of concentrate at 23% copper a year; and more than one and a half billion tonnes of output and 23 million tonnes of copper produced over sixty years) — 2025 · publ. 2026 · source ↗
  4. ReportedThe Cedynia division turns cathode into wire rod and oxygen-free rod — 279,9 thousand tonnes of it in 2025 — which is a manufactured product sold to named industrial customers rather than a commodity sold to a market.
    KGHM Polska Miedz S.A. Group - Management Board's report on activities in 2025, the production and unit-cost record (electrolytic copper of 570,9 thousand tonnes against 588,7 in 2024, 592,4 in 2023 and 560,4 in 2020; metallic silver of 1 323 tonnes against 1 403 in 2023; C1 payable copper production cost of 3,16 USD/lb for the Polish assets against 1,03 for KGHM INTERNATIONAL and 0,86 for Sierra Gorda; group payable copper of 710,0 thousand tonnes against 753,7 in 2021; wire rod and wire production of 279,9 thousand tonnes; and world mined silver production of about 25,3 thousand tonnes) — FY2018-FY2025 · publ. 10 March 2026 · source ↗
  5. ReportedThe February 2026 annex extending the agreement with the NKT Group to December 2036 is what that looks like in practice.
    KGHM Polska Miedz S.A. Group condensed consolidated financial statements for the first half of 2026 (the note stating that revenues from no single contractor exceeded 10% of group sales, the geographical breakdown by end-customer location totalling 21 927m złoty with Poland at 4 845m and Germany at 2 815m, parent revenue of 14 430m from copper and 5 843m from silver, the amending act on the minerals extraction tax in force from 1 January 2026, the group structure and equity accounting of Sierra Gorda, and derivative counterparty concentration) — H1 2026 · publ. August 2026 · source ↗
  6. Moat Explorer calcOf the parent's first-half revenue, about 78% went to end customers in Europe, with 4 845 million złoty of 21 927 million staying in Poland and Germany taking 2 815 million.
    Moat Explorer calculation - arithmetic on figures KGHM reports: ore grade (30 387 thousand tonnes of copper over 1 858 259 thousand tonnes of ore, and 91 837 tonnes of silver over the same), the by-product credit (52 201 less 17 415 złoty a tonne), the European share of parent sales (about 17 147m of 21 927m), copper and silver as a share of parent revenue (22 378m and 6 133m of 30 964m), the minerals extraction tax against parent net profit (4 693m over 1 946m), the dividend against trailing earnings (1,50 against 43,44 a share), and own concentrate as a share of refined output (183,6 of 291,5 thousand tonnes) — FY2023-H1 2026 · publ. September 2026 · source ↗
  7. Moat Explorer calcThe measure is the share of refined output coming from own concentrate — 63% in the first half of 2026 — because that is the part with a mine behind it.
    Moat Explorer calculation - arithmetic on figures KGHM reports: ore grade (30 387 thousand tonnes of copper over 1 858 259 thousand tonnes of ore, and 91 837 tonnes of silver over the same), the by-product credit (52 201 less 17 415 złoty a tonne), the European share of parent sales (about 17 147m of 21 927m), copper and silver as a share of parent revenue (22 378m and 6 133m of 30 964m), the minerals extraction tax against parent net profit (4 693m over 1 946m), the dividend against trailing earnings (1,50 against 43,44 a share), and own concentrate as a share of refined output (183,6 of 291,5 thousand tonnes) — FY2023-H1 2026 · publ. September 2026 · source ↗
Sources
Generated September 24, 2026