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  2. List of copper production by company - Wikipedia

    en.wikipedia.org/wiki/List_of_copper_production...

    2016 [2]; Rank Company Country Cu production (tonnes) 1: Codelco: Chile: 1,827,000 2: Freeport-McMoRan Copper & Gold: United States: 1,696,000 3: Glencore: Switzerland

  3. List of countries by copper production - Wikipedia

    en.wikipedia.org/wiki/List_of_countries_by...

    Production trends in the top five copper-producing countries, 1950-2012. This is a list of countries by mined copper production. Copper ore can be exported to be smelted so that a nation's smelter production of copper can differ greatly from its mined production. See: List of countries by copper smelter production.

  4. Laguna Copperplate Inscription - Wikipedia

    en.wikipedia.org/wiki/Laguna_Copperplate_Inscription

    Laguna Copperplate Inscription. The Laguna Copperplate Inscription (Filipino: Inskripsyón sa binatbát na tansô ng Laguna) is an official acquittance (debt relief) certificate inscribed onto a copper plate in the Shaka year 822 (Gregorian A.D. 900). It is the earliest-known, extant, calendar-dated document found within the Philippines.

  5. Wieland Group - Wikipedia

    en.wikipedia.org/wiki/Wieland_Group

    The Wieland Group is a manufacturer of semi-finished products in copper and copper alloys. The group of companies with Wieland-Werke AG as the ultimate parent company is organized into four business units. Since its foundation, the company’s headquarters has been located in Ulm. The Wieland Group has production sites in Asia, Europe and the USA.

  6. Xingye Alloy Materials - Wikipedia

    en.wikipedia.org/wiki/Xingye_Alloy_Materials

    Xingye Alloy Materials Group Limited ( SEHK : 505) was formerly known as Huan Yue Interactive Holdings Limited, and Xingye Copper International Group Limited, one of the leading high precision copper producer in China. It mainly involves in producing high precision copper plates and strips, tin phosphorus bronze plates and strips, brass plates ...

  7. Pewter - Wikipedia

    en.wikipedia.org/wiki/Pewter

    Pewter (/ ˈpjuːtər /) is a malleable metal alloy consisting of tin (85–99%), antimony (approximately 5–10%), copper (2%), bismuth, and sometimes silver. [1] In the past it was an alloy of tin and lead, but most modern pewter, in order to prevent lead poisoning, is not made with lead. Pewter has a low melting point, around 170–230 °C ...

  8. Copper extraction - Wikipedia

    en.wikipedia.org/wiki/Copper_extraction

    Copper(II) ions migrate through the electrolyte to the cathode. At the cathode (reduction reaction), Cu 2+ ions are reduced in copper metal and Cu (s) plates out, but less noble constituents such as arsenic and zinc remain in solution unless a higher voltage is used. [52] The reactions involving metallic copper and Cu 2+ ions at the electrodes ...

  9. List of countries by copper exports - Wikipedia

    en.wikipedia.org/wiki/List_of_countries_by...

    The following is a list of countries by refined copper exports. Data is for 2012, 2018 and 2023, in millions of United States dollars, as reported by The Observatory of Economic Complexity. Currently the top ten countries are listed. #