2022-10-26_PERMIT FILE - C1981041 ‎(5)‎

• Permit No: C1981041
• IBM Index Class Name: Permit File
• Doc Date: 10/26/2022
• Section_Exhibit Name: Tab 12 Operation Plan
• Media Type: D
• Archive: No

Quality of the Cameo average as
follows:
•
Moisture, as received
7.68:
Btu, as received
10,224
Ash, dry
19.71%
Volatile ratter, dry
35.85%
Fixed Carbon, dry
44.43%
Btu, dry
11,082
Sulfur, dry
0.92%
FSI
1
C. (dry
63.17%
R (dry)
4.51%
N (dry)
1.35%
Cl (dry)
0.01%
0 (dry)
10.32%
"Reserve Base" estimates were calculated in accordance with General
Mining Order No. 1. The "Coal Reserve Base Map" shows the location of
drill holes which were used to calculate tonnages. A work map has been
included which shows how the lease was divided into sections so acreages
could be obtained. The "Coal Recovery Chart — Reserve Base" shows each
• block along with coal thicknesses and calculated in place tons. Reserve
base on the total 2550.92 acres amounts to 29,640,799 tons.
"Mineable" reserves were calculated using an 8.0 foot maximum seam
height. This amounts to 29,497,259 tons which is within less than 1% of
the "Reserve Base".
Due to certain factors, i.e., OSM, subsidence, State of Colorado,
etc.; no detailed mine plan has been drawn up at this time. Recoverable
reserves were therefore calculated by first deducting coal contained in
a 50 foot boundary strip (453,573 tons) and then using a recovery factor
of 50% for the remaining acreage. This results in a total of 14,521,843
tons. Thicknesses in excess of 8.0 feet were not used because of anticipated
mining techniques, which include room and pillar methods and retreat
• longwall systems. The roof supports used in longwall mining are limited
as to the amount of vertical travel. Iherefore, these supports have to
be sized to be effective in the lowest coal encountered, which in this