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The Oranje Nassau Mijnen was a coal mine company, established in 1893 by Friedrich Honigmann (1841-1913) and Carl Honigmann (1842-1903) to exploit the rich coal deposits in and around Heerlen. That there were coal deposits around Heerlen was already known for centuries (coal had been dug up since the 13th century around Rolduc), but efficient transportation was lacking. In 1886 Henri Sarolea (January 18, 1844, Maastricht - September 12, 1900, Heerlen) had the idea of building a railroad between Herzogenrath, Heerlen, and Sittard, which was finished in 1896. It was this plan that prompted the building of the first mine (Oranje Nassau I, production from 1899 to 1974).〔(ON-algemeen )〕 While Oranje Nassau Mijnen was the public name of the company, the legal name was N.V. Maatschappij tot Exploitatie van Limburgsche Steenkolenmijnen. It was the largest private mining company in the Netherlands and is now owned by the French Wendel Investissement group, which acquired the founders' shares in 1908.〔(Oranje Nassau Groep B.V. - History )〕 ==Mines== *Oranje Nassau I (1899-1974), Heerlen, Production: 31,978,000 tons *Oranje Nassau II (1904 - 1971), Landgraaf, Production: 34,064,000 tons *Oranje Nassau III (1917 - 1973), Heerlerheide (Heerlen), Production: 38,265,000 tons *Oranje Nassau IV (1927 - 1966), Heksenberg (Heerlen), Production: 13,754,000 tons Total production: 111,016,000 tons The ON I and ON III are now part of the Minewater Project, ON IV is now the Sigrano a silversand mine, part of Sibelco. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Oranje Nassau Mijnen」の詳細全文を読む スポンサード リンク
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