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| 1873 |
Establishment of the company, and construction of the first zinc smelter.
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| 1875 |
Inauguration of zinc smelter operations; Cinkarna was engaged solely in metallurgy during the early years.
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| 1888 |
Zinc rolling mill operations begin.
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| 1912 |
Modernisation of the ore-roasting plant, and the initiation of sulphuric acid production, which complements Cinkarna's basic chemicals manufacturing.
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| 1934/35 |
Foundation of Pražarna & Kemična d.d., a joint-stock company engaged in ore-roasting and chemicals manufacturing; the launch of pigments production.
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| 1938 |
Initiation of zinc production, and zinc-based offset plate manufacture.
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| 1949 |
Establishment of organic dyestuffs manufacturing operation.
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| 1953 |
Merger of Cinkarna and Pražarna & Kemična.
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| 1961 |
Affiliation of organic dyestuffs plant.
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| 1962 |
Affiliation of Mozirje mineral pigments plant; launch of sulphuric acid production using the contact process.
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| 1966 |
Launch of aluminium offset-plate production.
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| 1970 |
Transition from a primarily metallurgy-oriented into a chemicals company.
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| 1973 |
Titanium dioxide production begins.
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| 1980 |
Start of operation gumming and fluorinated polymer processing.
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| 1981 |
A new rolling mill begins operation, and the manufacture of titanium-zinc sheets begins.
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| 1982 |
The double-absorption process is initiated in sulphuric acid production, resulting in a decrease in SO2 emissions.
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| 1989 |
Modernisation of titanium dioxide production.
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| 1991 |
Manufacture of grained aluminium lithographic plates commences.
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| 1993 |
Transformation into a limited liability company begins; some obsolete production facilities (Litopon, Organic dyestuffs, Ceramics) are closed, while the fungicide (blue copper) production plant is modernised; powder coatings manufacture begins in Mozirje.
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| 1994/95 |
Upgrading of titanium dioxide production, and instalment of additional anti-pollution devices.
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| 1996 |
Relocation and upgrade of growth substrates production; closure of the outmoded Galvana works.
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| 1997 |
Cinkarna Celje is transformed into a joint-stock company.
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| 1998 |
Completion of a new plant aimed at the production of building and construction materials; inaugural assembly of the Cinkarna Celje joint stock company.
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| 2000 |
Commencement of intensive investments into the expansion of titanium dioxide pigment production.
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| 2006 |
The completion of the project to expand and modernise titanium dioxide pigment production; the sub-projects for the upgrade of sulphuric acid production and dry gypsum disposal have been under way.
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| 2006 |
Launch of production of CEGIPS – white titanium gypsum.
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| 2007 |
Project of environmental and technological upgrade of the titanium dioxide production plant is mainly complete. The project of dry gypsum filling is still in progress.
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| 2008 |
Start of red gypsum dry filling.
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| 2009 |
Launch of the new masterbatch line. Discontinuation of zinc sulphate production.
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| 2010 |
The company is awarded the Integral Environmental Permit in compliance with the IPPC Directive. Resolution to close the Bukovžlak solid waste disposal site is adopted.
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