headquarters oslo norway key people helge aasen ceo products silicon microsilica carbon and special alloys for the foundry industry revenue nok 9.5 billion 2011 operating income nok 622 million 2011 number of employees ca. 2 400 2011 parent china national bluestar group co. ltd website http www.elkem.com elkem is a company that produces solar grade silicon silicon alloys for the foundry industry carbon and microsilica . elkem is owned by china national bluestar group co. ltd. bluestar which bought the company from orkla group for 2 billion usd in 2011 . the deal excluded 85 percent of the sister company elkem energi as . the company serves the construction transport engineering packaging aluminium chemical and electronic industries . elkem has 13 factories in europe north america south america and asia . contents 1 history 2 operations 2.1 carbon 2.2 foundry products 2.3 silicon materials 2.4 solar 3 see also 4 references 5 external links history edit elkem was founded in 1904 by sam eyde with the intention of development of furnaces and processes for electro metals . in 1917 a ferroalloy plant was acquired and elkem started production of the s derberg electrode . throughout the 1960s and beyond elkem expanded primarily in norway within aluminium mining and finished products . in 1972 the company merged with christiania spigerverk and continued with an international expansion within ferroalloys and steel . in 1981 84 elkem acquired union carbides plants in norway and north america and in 1986 the plants at thamshavn and bj lvefossen . in the 2000s elkem had acquired icelandic alloy remi claeys aluminium and sapa . between 2002 and 2005 there was an acquisition war between the us aluminium corporation alcoa and orkla . at the peak alcoa owned 40 % of elkem but orkla succeeded at purchasing the majority of the shares and in 2005 orkla acquired all the shares of elkem and elkem became part of orkla group . in january 2011 orkla asa signed a binding agreement with china national bluestar group to sell elkem including elkem silicon materials elkem foundry products elkem carbon and elkem solar for a sales price of usd 2 billion . 1 operations edit carbon edit elkem carbon is the world s largest producer of electrically calcined anthracite and electrode paste which are necessary in the manufacturing process for steel aluminium silicon and other metals . there are production plants at kristiansand norway shizuishan city china witbank south africa and vit ria brazil . foundry products edit the foundry production is served at four plants at bj lvefossen norway bremanger norway chicoutimi quebec canada and at grundartangi iceland . ferrosilicon improves the characteristics of steel and is incorporated into windmills trains cars and most other mechanical devices . elkem s special alloys are added to foundry products and contribute to the customer s increased productivity and reduced energy use . silicon materials edit elkem silicon materials is one of the world s leading suppliers of silicon and microsilica . elkem has silicon plants at bremanger salten and thamshavn all in norway . silicon improves the characteristics of aluminium acts as conductor in electronic products and chemical processing turns it into silicone . microsilica is an extremely fine grained silicon dust that is used as an additive in concrete as lining in oil wells as an asbestos substitute in refractory materials in fertilizers and in plastics . the use of elkem s silicon related products contributes to reduced needs for materials and increased strength in the customer s materials . solar edit elkem solar provides pure silicon to the solar industry . see also edit elkem thamshavn references edit orkla sells elkem to china national bluestar www.wallstreet online.de external links edit official site v t e railway companies of norway current airport express train cargonet malmtrafikk norwegian national rail administration norwegian state railways nsb gj vikbanen former cargolink dunderland elkem grimstad lier lillesand flaksvand linx nesttun os norsk transport norwegian state railways ofotbanen oslo lysverker salvesen & thams sydvaranger trunk urskog h land valdres vestfold privatbaner authority control bibsys 90072581 retrieved from https en.wikipedia.org w index.php title elkem & oldid 711036031 categories companies established in 19041904 establishments in norwaypower companies of norwaycompanies based in oslomer kerorkla groupsilicon wafer producersaluminium companies of norwayhidden categories wikipedia articles with bibsys identifiers navigation menu personal tools not logged intalkcontributionscreate accountlog in namespaces article talk variants views read edit view history more search navigation main pagecontentsfeatured contentcurrent eventsrandom articledonate to wikipediawikipedia store interaction helpabout wikipediacommunity portalrecent changescontact page tools what links hererelated changesupload filespecial pagespermanent 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