YZC [YANZHOU COAL MINING CO] 6-K: (Original Filing)
[Yanzhou Coal Mining Company Limited Date Zhang Baocai Director 2 YANZHOU COAL MINING COMPANY LIMITED (A joint stock limited company incorporated in the Peoples Republic of China with limited liability) (Stock Code: 1171) VOLUNTARY ANNOUNCEMENT RESULTS OF TRACKING CREDIT RATING FOR THE FIRST AND SECOND TRANCHE OF THE 2012 CORPORATE BONDS Yanzhou Coal Company This announcement is a voluntary announcement]