2025-03-14_PERMIT FILE - M2025016 (12)

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// PAGE 7 EXHIBIT D Raptor Materials, LLC Cogburn Sand, Gravel, and Reservoir Project February 2025 A Regular Impact (112) Construction Permit Application – Colorado Division of Reclamation Mining and Safety, Office of Mined Land Reclamation operation. An Operator/Applicant shall not be required to meet specific dates for initiation, or completion of mining in a phase as may be identified in the timetable. This does not exempt an Operator/Applicant from complying with the performance standards of Rule 3.1. If the operation is intended to be an intermittent operation as defined in Section 34-32.5-103(11)(b), C.R.S., the Applicant should include in this exhibit a statement that conforms to the provisions of Section 34-32.5-103(11)(b), C.R.S. Such timetable should include: Subsections (i) Through (iii) i. an estimate of the periods of time which will be required for the various stages or phases of the operation; ii. a description of the size and location of each area to be worked during each phase; and iii. outlining the sequence in which each stage or phase of the operation will be carried out. (Timetables need not be separate and distinct from the mining plan, but may be incorporated therein.) At anticipated production levels of 800,000 tons per year, extraction is expected to roughly follow the durations presented below. Please Note: The time periods will depend on the actual rate of production required to meet market demand, and the average annual advance may also vary with thickness and quality of the sand and gravel, management of water and ground conditions, and other unforeseeable circumstances. Some flexibility may also be exercised to optimize operations around or through existing infrastructure if scheduled for removal. As noted in Section (d) above, while sequential development of the pits is preferred, simultaneous operation in more than one and possibly all pits may be necessary. A more detailed discussion of mining and reclamation timing is presented in Exhibit E – Reclamation Plan. Exhibit C-2 – Extraction Plan Map shows the location and planned extraction limits, general direction of extraction, and related features described above; along with features made obvious in the included aerial image of the permit location and surrounding lands. Exhibits C-2 – Extraction Plan Map and L – Financial Warranty Map, shows Initial Extraction proposed to begin in the yellow hatch area shown on the Exhibit L Map. Pit P125_S1 is small, occupying only 10.4 acres. The direction of extraction will follow the perimeter of the extraction limits in order to establish the perimeter keyway (dewatering trench) for the 10.4-acre Pit P125_S1, 22.1-acre Pit P125A, and 38.8-acre Pit P125B. Approximately 60.7 acres across the three pits are expected to be extracted in the first five years. Table E-1 in Exhibit E – Reclamation Plan provides a projection of mine development and regrading/reclamation. The plan as described is a forecast and may vary according to market conditions with mining and subsequent regrading occurring faster or slower, sometimes significantly so. The geology uncovered as extraction progresses may also dictate changes in the rate of extraction. If efficiency demands a higher production scenario, up to three separate areas could be developed in the manner described simultaneously. Such changes may happen quickly and would be addressed in the Annual Report. The estimated timetable for extraction, commencing approximately summer to winter 2025, is estimated to take 8-9 years combined, or longer, followed by an additional five years to complete reclamation; or a total estimated life of the mine of 13-14± years, and ending approximately winter 2035 to 2036. This is a life of the mine operation and all timetables are estimates and may prove shorter or longer than stated. The final determination will occur five years after the deposit is exhausted and all marketable product has been removed and necessary infill completed at the location to the point of final reclamation as approved or modified under the terms of the permit.