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# https://sunshinesilvermining.com/wp-content/uploads/2026/07/Sunshine-Silver-Drill-Results-Table_v1.pdf

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# https://sunshinesilvermining.com/wp-content/uploads/2026/07/Sunshine-Silver-Drill-Results-Table_v1.pdf
SUNSHINE SILVER MINING & REFINING
Sunshine Mine Exploration Drilling Results
Below are recent drill results from the ongoing expansion and infill programs at Sunshine Mine. Please see
the accompanying press release dated July 23, 2026, available on www.sunshinesilvermining.com.
True
From To Width AgEq1 AgEq1
Hole ID Vein Name Width Ag (gpt) Cu (%) Pb (%) Sb (%)
(m) (m) (m) (gpt) (opt)
(m)
31-2501 New 127.92 129.36 1.43 1.24 2,359 0.60 0.02 0.54 2,484 72
31-2501 New 134.08 134.23 0.15 0.09 1,104 0.34 0.09 0.28 1,173 34
31-2501 DVein 171.97 172.58 0.61 0.55 40 0.02 0.08 0.01 44 1
FS-3102 New 149.75 149.90 0.15 0.11 2,201 1.61 0.00 0.25 2,350 69
FS-3102 DVein 216.93 217.11 0.18 0.13 6 0.00 0.01 0.00 6 0
FS-3103 NYBoy 190.50 190.68 0.18 0.17 5 0.00 0.01 0.00 5 0
FS-3104 New 10.39 10.70 0.30 0.20 1,275 0.76 12.10 0.23 1,521 44
FS-3104 NYBoy 206.81 209.18 2.38 2.23 1 0.00 0.00 0.00 2 0
FS-3105 NYBoy 255.09 259.81 4.72 3.62 981 0.43 0.06 0.31 1,060 31
FS-3107 NYBoy 205.56 206.72 1.16 1.12 141 0.01 6.17 0.02 225 7
FS-ST01 CFault Vein 149.35 150.11 0.76 0.75 0 0.00 0.01 0.00 0 0
FS-ST02 CFault Vein 140.42 142.04 1.62 1.52 2,539 2.39 0.11 1.01 2,862 83
FS-ST02 including 140.82 141.06 0.24 0.23 8,880 6.41 0.44 3.39 9,857 287
FS-ST03 CFault Vein 143.41 144.02 0.61 0.61 340 0.23 0.01 0.09 370 11
FS-ST04 SYBoy 231.65 233.57 1.92 1.80 0 0.00 0.00 0.00 0 0
FS-ST04 NYBoy 243.81 244.60 0.79 0.77 3 0.00 0.00 0.00 3 0
FS-ST07 CFault Vein 140.97 141.88 0.91 0.90 0 0.00 0.00 0.00 0 0
FS-ST08 CFault Vein 144.26 146.61 2.35 2.03 297 0.68 0.31 0.17 374 11
FS-ST10 CFault Vein 188.95 189.95 1.01 0.71 3,429 1.17 0.01 0.87 3,645 106
FS-ST10 including 189.74 189.95 0.21 0.15 13,783 4.53 0.01 3.46 14,636 427
FS-ST11 CFault Vein 204.46 205.77 1.31 1.07 3,553 1.51 0.00 1.01 3,815 111
FS-ST11 including 205.44 205.59 0.15 0.12 23,931 10.40 0.01 6.76 25,705 750
FS-ST13 CFault Vein 235.95 236.13 0.18 0.18 1 0.00 0.00 0.00 2 0
FS-ST15 CFault Vein 221.13 221.28 0.15 0.11 1,341 0.73 0.09 0.48 1,467 43
FS-ST16 CFault Vein 240.79 242.01 1.22 1.10 6 0.01 0.00 0.00 7 0
1 Silver equivalent grade was calculated using metal prices of $49.05 per ounce silver, $4.89 per pound copper, $0.93
per pound lead and $11.24 per pound antimony, and metallurgical recovery assumptions of 97% for silver, copper,
lead and antimony.
Page 2
Sunshine Mine Exploration Drill Results (Continued)
True
From To Width AgEq1 AgEq1
Hole ID Vein Name Width Ag (gpt) Cu (%) Pb (%) Sb (%)
(m) (m) (m) (gpt) (opt)
(m)
FS-ST18 CFault Vein 195.07 195.22 0.15 0.11 1,299 0.60 6.79 0.46 1,501 44
FS-ST19 CFault Vein 219.61 220.89 1.28 1.11 453 0.33 1.48 0.17 521 15
FS-ST21 CFault Vein 213.70 214.61 0.91 0.70 915 0.38 0.01 0.27 984 29
FS-ST22 SYBoy 245.67 245.82 0.15 0.12 4,766 1.71 0.12 1.31 5,090 148
FS-ST23 CFault Vein 144.63 144.78 0.15 0.14 241 0.07 0.09 0.04 253 7
FS-ST23 SYBoy 254.14 254.60 0.46 0.26 3,909 1.62 0.16 1.17 4,205 123
FS-ST23 NYBoy 255.91 256.06 0.15 0.15 734 0.33 0.08 0.25 796 23
FS-ST24 CFault Vein 147.07 147.22 0.15 0.03 2 0.00 0.00 0.00 2 0
FS-ST24 SYBoy 258.62 259.54 0.91 0.90 5 0.00 0.01 0.00 7 0
FS-ST25 CFault Vein 149.96 151.18 1.22 1.15 154 0.31 0.09 0.12 195 6
FS-ST25 SYBoy 283.43 283.92 0.49 0.37 307 0.10 0.07 0.08 328 10
FS-ST25 NYBoy 288.95 289.10 0.15 0.12 1 0.00 0.01 0.00 2 0
FS-ST26 CFault Vein 142.49 144.17 1.68 1.52 1,076 1.01 0.33 0.43 1,216 35
FS-ST26 SYBoy 246.07 246.28 0.21 0.17 1,954 0.73 0.28 0.57 2,097 61
FS-ST26 NYBoy 248.23 248.72 0.49 0.34 3,607 1.56 0.06 1.18 3,898 114
FS-ST26 including 248.56 248.72 0.15 0.11 7,989 3.32 0.07 2.57 8,620 251
FS-ST27 CFault Vein 143.41 144.93 1.52 1.50 340 0.84 0.02 0.16 422 12
FS-ST27 SYBoy 249.33 250.85 1.52 1.50 459 0.16 0.09 0.13 491 14
FS-ST27 NYBoy 252.37 253.90 1.52 1.32 2 0.00 0.01 0.00 3 0
FS-ST29 CFault Vein 215.86 216.29 0.43 0.27 9,209 2.82 0.14 2.25 9,757 285
FS-ST29 SYBoy 233.17 234.24 1.07 1.03 439 0.09 1.60 0.08 478 14
FS-ST29 NYBoy 246.28 246.67 0.40 0.38 26 0.02 0.01 0.01 29 1
FS-ST30 CFault Vein 155.75 156.51 0.76 0.72 3,142 1.70 4.32 0.85 3,448 101
FS-ST30 SYBoy 207.87 209.40 1.52 1.38 128 0.04 0.05 0.03 136 4
FS-ST30 NYBoy 210.92 212.45 1.52 1.50 3 0.00 0.01 0.00 4 0
1 Silver equivalent grade was calculated using metal prices of $49.05 per ounce silver, $4.89 per pound copper, $0.93
per pound lead and $11.24 per pound antimony, and metallurgical recovery assumptions of 97% for silver, copper,
lead and antimony.
Page 3
Sunshine Mine Exploration Drill Results (Continued)
True
From To Width AgEq1 AgEq1
Hole ID Vein Name Width Ag (gpt) Cu (%) Pb (%) Sb (%)
(m) (m) (m) (gpt) (opt)
(m)
FS-ST31 CFault Vein 160.48 163.22 2.74 2.58 1 0.00 0.00 0.00 1 0
FS-ST31 SYBoy 208.30 209.09 0.79 0.69 1,748 0.38 0.03 0.32 1,825 53
FS-ST32 CFault Vein 164.68 165.66 0.98 0.75 1 0.00 0.00 0.00 2 0
FS-ST32 SYBoy 209.25 210.31 1.07 1.05 161 0.15 0.01 0.09 185 5
FS-ST33 CFault Vein 174.53 174.74 0.21 0.17 651 0.27 6.90 0.20 790 23
FS-ST34 CFault Vein 163.37 164.13 0.76 0.58 2,548 1.33 0.06 0.74 2,756 80
FS-ST34 SYBoy 212.38 214.43 2.04 2.01 7 0.00 0.01 0.00 7 0
FS-ST35 CFault Vein 171.91 172.06 0.15 0.15 1 0.00 0.00 0.00 1 0
FS-ST35 SYBoy 218.51 220.07 1.55 1.50 1,463 0.34 0.45 0.29 1,537 45
FS-ST35 including 219.91 220.07 0.15 0.15 7,954 1.65 0.78 1.39 8,296 242
FS-ST35 NYBoy 233.93 234.09 0.15 0.14 1 0.00 0.00 0.00 1 0
FS-ST36 CFault Vein 172.12 174.04 1.92 1.80 1,976 0.87 0.45 0.55 2,128 62
FS-ST36 including 172.88 173.03 0.15 0.14 9,600 3.66 0.01 2.65 10,267 299
FS-ST36 SYBoy 216.41 216.71 0.30 0.29 253 0.07 0.51 0.06 274 8
FS-ST36 NYBoy 220.22 220.68 0.46 0.43 25 0.01 0.00 0.01 27 1
FS-ST37 CFault Vein 183.09 183.25 0.15 0.12 1,402 1.16 0.12 0.51 1,563 46
FS-ST37 SYBoy 220.68 222.02 1.34 1.30 939 0.23 0.29 0.20 991 29
FS-ST37 including 221.86 222.02 0.15 0.15 6,960 1.76 2.28 1.51 7,347 214
FS-ST37 NYBoy 226.31 226.47 0.15 0.15 480 0.17 0.01 0.14 515 15
FS-ST38 CFault Vein 211.93 212.48 0.55 0.45 3,032 2.24 0.50 1.26 3,388 99
FS-ST38 including 211.93 212.23 0.30 0.25 4,149 3.24 0.89 1.70 4,649 136
FS-ST39 CFault Vein 151.79 151.94 0.15 0.11 1,313 1.12 0.16 0.56 1,479 43
FS-ST40 CFault Vein 144.78 146.00 1.22 1.20 3,432 1.68 0.05 1.14 3,727 109
FS-ST40 including 144.78 144.93 0.15 0.15 22,560 10.60 0.11 7.46 24,458 713
FS-ST40 SYBoy 204.98 205.13 0.15 0.14 6,000 1.51 0.19 1.22 6,297 184
1 Silver equivalent grade was calculated using metal prices of $49.05 per ounce silver, $4.89 per pound copper, $0.93
per pound lead and $11.24 per pound antimony, and metallurgical recovery assumptions of 97% for silver, copper,
lead and antimony.
Page 4
Sunshine Mine Exploration Drill Results (Continued)
True
From To Width AgEq1 AgEq1
Hole ID Vein Name Width Ag (gpt) Cu (%) Pb (%) Sb (%)
(m) (m) (m) (gpt) (opt)
(m)
FS-ST40 NYBoy 208.18 208.45 0.27 0.27 283 0.11 0.02 0.09 304 9
FS-ST41 CFault Vein 162.15 162.76 0.61 0.57 2 0.00 0.00 0.00 2 0
FS-ST41 SYBoy 217.93 218.69 0.76 0.66 2,966 0.65 0.37 0.50 3,094 90
FS-ST42 SYBoy 226.31 228.08 1.77 1.71 3,093 0.76 0.00 0.63 3,244 95
FS-ST42 including 226.31 226.86 0.55 0.54 4,423 1.03 0.01 0.91 4,637 135
FS-ST42 including 227.84 228.08 0.24 0.23 12,069 3.02 0.01 2.40 12,652 369
FS-ST42 NYBoy 231.86 232.41 0.55 0.52 1,847 0.60 0.06 0.40 1,950 57
FS-ST43 CFault Vein 172.21 173.74 1.52 0.76 7 0.01 0.00 0.00 8 0
FS-ST43 SYBoy 214.64 214.94 0.30 0.30 1,855 0.59 0.18 0.45 1,968 57
FS-ST44 SYBoy 214.12 217.63 3.51 3.39 345 0.10 0.03 0.07 363 11
FS-ST45 SYBoy 221.96 222.20 0.24 0.23 651 0.17 0.49 0.14 691 20
FS-ST46 CFault Vein 199.92 200.10 0.18 0.14 2 0.00 0.00 0.00 2 0
FS-ST46 SYBoy 225.09 226.77 1.68 1.65 759 0.31 0.08 0.23 817 24
FS-ST47 CFault Vein 216.10 216.41 0.30 0.15 1 0.00 0.00 0.00 1 0
FS-ST47 SYBoy 230.12 231.65 1.52 1.43 1 0.00 0.00 0.00 1 0
FS-ST48 CFault Vein 216.59 216.90 0.30 0.28 2,136 1.62 0.03 0.84 2,378 69
FS-ST50 New 224.03 224.76 0.73 0.37 460 0.22 0.03 0.17 502 15
FS-ST50 SYBoy 224.03 224.76 0.73 0.52 460 0.22 0.03 0.17 502 15
FS-ST51 10Vein 122.71 123.29 0.58 0.37 12,240 3.67 0.56 2.48 12,888 376
FS-ST51 NYBoy 194.83 195.89 1.07 0.92 48 0.02 0.05 0.02 53 2
FS-ST51 SYBoy 205.37 206.65 1.28 1.11 1 0.00 0.00 0.00 2 0
FS-ST53 NYBoy 281.03 281.64 0.61 0.47 562 0.29 0.20 0.23 621 18
FS-ST54 NYBoy 187.36 188.88 1.52 1.25 1 0.00 0.00 0.00 1 0
FS-ST55 NYBoy 256.03 257.25 1.22 0.89 7 0.00 0.00 0.00 7 0
FS-ST56 10Vein 113.42 114.00 0.58 0.05 37 0.70 0.02 0.05 93 3
1 Silver equivalent grade was calculated using metal prices of $49.05 per ounce silver, $4.89 per pound copper, $0.93
per pound lead and $11.24 per pound antimony, and metallurgical recovery assumptions of 97% for silver, copper,
lead and antimony.
Page 5
Sunshine Mine Exploration Drill Results (Continued)
True
From To Width AgEq1 AgEq1
Hole ID Vein Name Width Ag (gpt) Cu (%) Pb (%) Sb (%)
(m) (m) (m) (gpt) (opt)
(m)
FS-ST56 NYBoy 159.87 161.24 1.37 1.13 11 0.01 0.00 0.00 12 0
FS-ST56 SYBoy 169.16 170.63 1.46 1.37 1 0.00 0.00 0.00 1 0
FS-ST57 10Vein 135.94 136.15 0.21 0.12 44 0.08 0.04 0.03 54 2
FS-ST58 10Vein 138.78 139.75 0.98 0.33 959 0.10 32.35 0.14 1,409 41
FS-ST58 NYBoy 226.65 228.11 1.46 1.12 237 0.05 0.04 0.05 249 7
FS-ST59 10Vein 118.29 118.48 0.18 0.12 861 0.29 6.79 0.23 1,005 29
FS-ST59 NYBoy 218.88 219.06 0.18 0.14 758 0.04 23.10 0.11 1,078 31
FS-ST59 SYBoy 221.28 222.60 1.31 1.00 681 0.14 0.09 0.13 712 21
FS-ST60 10Vein 104.30 112.47 8.17 5.25 492 0.22 3.92 0.17 584 17
FS-ST60 including 105.00 106.71 1.71 1.10 1,969 0.87 11.91 0.67 2,289 67
FS-ST61 10Vein 124.66 132.28 7.62 3.81 518 0.11 10.98 0.11 685 20
FS-ST62 10Vein 103.02 105.61 2.59 1.30 332 0.02 14.12 0.04 522 15
FS-ST63 10Vein 66.84 67.06 0.21 0.15 1,083 0.20 24.40 0.20 1,446 42
FS-ST64 New 178.46 179.62 1.16 1.09 319 0.21 1.01 0.16 371 11
FS-ST64 10Vein 183.55 184.28 0.73 0.56 403 0.02 15.63 0.05 615 18
FS-ST65 10Vein 97.69 98.63 0.94 0.61 193 0.10 0.33 0.07 216 6
FS-ST66 10Vein 139.54 140.67 1.13 0.92 684 0.02 23.12 0.08 998 29
FS-ST67 10Vein 138.99 139.75 0.76 0.75 1,173 0.11 42.40 0.17 1,758 51
FS-ST68 10Vein 68.28 68.43 0.15 0.12 4 0.00 0.14 0.00 6 0
FS-ST69 10Vein 123.17 123.90 0.73 0.47 1,894 0.73 26.37 0.59 2,380 69
FS-ST69 SYBoy 203.24 203.61 0.37 0.33 617 0.19 0.08 0.16 656 19
FS-ST70 10Vein 92.05 92.20 0.15 0.08 52 0.02 0.22 0.02 58 2
FS-ST70 SYBoy 157.89 159.41 1.52 1.43 1 0.00 0.00 0.00 2 0
FS-ST71 10Vein 140.76 140.91 0.15 0.11 32,331 16.50 12.80 11.10 35,370 1,032
FS-ST71-A 10Vein 140.30 140.45 0.15 0.15 5,417 2.73 0.41 2.08 5,936 173
1 Silver equivalent grade was calculated using metal prices of $49.05 per ounce silver, $4.89 per pound copper, $0.93
per pound lead and $11.24 per pound antimony, and metallurgical recovery assumptions of 97% for silver, copper,
lead and antimony.
Page 6
Sunshine Mine Exploration Drill Results (Continued)
True
From To Width AgEq1 AgEq1
Hole ID Vein Name Width Ag (gpt) Cu (%) Pb (%) Sb (%)
(m) (m) (m) (gpt) (opt)
(m)
FS-ST71-A NYBoy 225.70 226.01 0.30 0.29 2 0.00 0.02 0.00 3 0
FS-ST72 10Vein 121.19 122.38 1.19 0.91 301 0.13 6.60 0.08 409 12
FS-ST72 SYBoy 211.99 213.48 1.49 1.14 770 0.27 0.08 0.22 824 24
FS-ST73 10Vein 90.62 92.26 1.65 1.35 5 0.00 0.16 0.00 8 0
FS-ST73 NYBoy 175.38 175.87 0.49 0.42 1,245 0.79 2.08 0.65 1,427 42
FS-ST73 SYBoy 178.70 179.83 1.13 0.92 1,749 0.38 0.54 0.36 1,839 54
FS-ST74 10Vein 249.23 251.37 2.13 1.51 914 0.37 6.31 0.29 1,068 31
FS-ST75 10Vein 197.05 202.23 5.18 2.19 1,135 0.36 14.85 0.33 1,404 41
FS-ST76 10Vein 161.54 164.35 2.80 2.15 125 0.04 3.13 0.03 174 5
FS-ST76 NYBoy 250.76 251.22 0.46 0.40 1,232 0.91 0.28 0.74 1,414 41
FS-ST76 SYBoy 254.23 254.84 0.61 0.55 946 0.30 0.35 0.26 1,012 30
FS-ST77

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