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December 27, 2023 Page 2-2 <br />Agapito Associates, Inc. <br />This area of the mine is absent of any underlying mine workings in the B seam and, as such, the <br />pillars are not subject to multi-seam stress. <br />In terms of the existing roof support installed in Sunset Mains South, the mine indicates the <br />roadways were typically supported with a four to five ⅞-inch, Grade 75 partially encapsulated <br />bolts every 5 ft. To date, there has not been any major roof falls in the travel-ways, which suggests <br />that the installed roof support density was sufficient for the purpose of maintaining roof stability. <br /> <br /> <br /> <br />