Usibelli Coal Mine Cleaner Energy Brighter Future Coal: Data Sheet HEALY COAL - DATA SHEET Producer: Usibelli Coal Mine, Inc. Location: Healy, Alaska USA Railroad: Alaska Railroad, state owned and operated. Shipping Port: Seward Coal Terminal, owned by the Alaska Railroad Corporation Coal Property: Approximately 35,100 acres (14,200 hectares) under coal lease primarily from State of Alaska. Reserves: Total proven surface reserves approximately 450 million tons. Coal Rank: Subbituminous C Coal Seams: Mining is primarily from seams 3, 4, and 6 of the Suntrana Formation. These seams average approximately 18' (5.5m), 30' (9.1m), and 24' (7.3m) respectively. Preparation: Raw coal is crushed to 2" x 0" (50 mm x 0 mm) but no washing is performed. Screening circuit can reduce minus 1/4" (6 mm) to less than 10% with top size to 6" (150 mm). Production: The current production level is approximately 1.2 to 2 million tons (1 to 1.8 million Metric tons) per year. HEALY COAL - DATA SHEET - Typical As-Mined Analysis Proximate analysis: Typical Gross As Received: GAR Range Moisture 29 % 27 - 32% Ash 7 % 4 - 12% Volatile matter 36 % 32 - 39% Fixed carbon 26.5 % 25 - 33% Sulfur 0.20 % 0.08 - 0.28% Heat Value (Btu/lb) 7,560 (4,200 kcal/kg) 7,200 - 8,000 (4000-4300 kcal/kg) Initial Deformation Temp. (Red) 2,150 degrees F (1,175 degrees C) 2050 - 2250 F (1120 - 1230 C) T250 Temperature 2,320 degrees F (1,275 degrees C) Grindability (HGI) 42 Ultimate Analysis (MAF): Carbon 70.0 % Oxygen 24.0 Hydrogen 5.0 Nitrogen 0.8 (0.60 - 0.95) Sulfur 0.3 (0.2 - 0.4) Total 100.0 % Typical Ash Analysis: Silicon Dioxide SiO2 44.4% Aluminum Oxide Al2O3 18.0 Titanium Dioxide TiO2 0.8 Iron Oxide Fe2O3 7.0 Calcium Oxide CaO 19.1 Magnesium Oxide MgO 3.1 Potassium Oxide K2O 1.2 Sodium Oxide Na2O 0.3 Sulphur Trioxide SO3 5.1 Phosphous Pentoxide P2O5 0.07 Strontium Oxide SrO 0.20 Barium Oxide BaO 0.57 Manganese Oxide MnO2 0.16 Total 100.0 % MINE OFFICE PO Box 1000 Healy, AK 99743 Tel: (907) 683-2226 Fax: (907) 683-2253 FAIRBANKS OFFICE 100 Cushman St., Ste. 210 Fairbanks, AK 99701-4674 Tel: (907) 452-2625 Fax: (907) 451-6543 Go © 2009-2015 Usibelli Coal Mine info@usibelli.com