| Schedule of intangible assets subject to amortization |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Accumulated | | Accumulated | | Amortization | | Amortization | | Amortization | | Amortization | | | | | | | | | Remaining Life | | | | | Amortization and | | Amortization and | | and Impairment | | and Impairment | | and Impairment | | and Impairment | | | | | | | | (in months) at | | | | Impairment at | | Impairment at | | Three Months | | Three Months | | Six Months | | Six Months | | Net Book Value | | Net Book Value | | | March 31, | | | | March 31, | | September 30, | | Ended March 31, | | Ended March 31, | | Ended March 31, | | Ended March 31, | | at March 31, | | at September 30, | | | 2026 | | Original Cost | | 2026 | | 2025 | | 2026 | | 2025 | | 2026 | | 2025 | | 2026 | | 2025 | Intangible assets: | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | West Virginia Pipeline: | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Customer relationships | | 57 | | $ | 2,209,724 | | | 1,160,100 | | $ | 1,049,610 | | | 55,245 | | | 55,245 | | | 110,490 | | | 110,490 | | $ | 1,049,624 | | $ | 1,160,114 | Tradename | | 57 | | | 263,584 | | | 138,391 | | | 125,215 | | | 6,588 | | | 6,588 | | | 13,176 | | | 13,176 | | | 125,193 | | | 138,369 | Non-competes | | — | | | 83,203 | | | 83,203 | | | 83,203 | | | — | | | — | | | — | | | — | | | — | | | — | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Heritage Painting | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Customer relationships | | 39 | | | 121,100 | | | 42,378 | | | 30,270 | | | 6,054 | | | 6,054 | | | 12,108 | | | 12,108 | | | 78,722 | | | 90,830 | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Tri-State Paving: | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Customer relationships | | 73 | | | 1,649,159 | | | 645,921 | | | 563,463 | | | 41,229 | | | 41,229 | | | 82,458 | | | 82,458 | | | 1,003,238 | | | 1,085,696 | Tradename | | 73 | | | 203,213 | | | 79,592 | | | 69,431 | | | 5,081 | | | 5,080 | | | 10,161 | | | 10,160 | | | 123,621 | | | 133,782 | Non-competes | | — | | | 39,960 | | | 39,960 | | | 39,960 | | | — | | | — | | | — | | | — | | | — | | | — | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Tribute Contracting & Consultants | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Non-compete 1 | | 104 | | | 520,000 | | | 69,331 | | | 43,333 | | | 12,999 | | | 12,501 | | | 25,998 | | | 16,668 | | | 450,669 | | | 476,667 | Non-compete 2 | | 80 | | | 10,000 | | | 1,666 | | | 1,042 | | | 312 | | | — | | | 624 | | | — | | | 8,334 | | | 8,958 | Tradename | | 44 | | | 80,000 | | | 21,331 | | | 13,333 | | | 3,999 | | | 37,500 | | | 7,998 | | | 50,000 | | | 58,669 | | | 66,667 | Backlog | | 8 | | | 1,320,000 | | | 880,000 | | | 550,000 | | | 104,230 | | | — | | | 330,000 | | | — | | | 440,000 | | | 770,000 | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Rigney Digital Systems | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Tradename | | 126 | | | 657,100 | | | 29,868 | | | — | | | 14,934 | | | — | | | 29,868 | | | — | | | 627,232 | | | 657,100 | Backlog | | 18 | | | 260,600 | | | 65,148 | | | — | | | 32,574 | | | — | | | 65,148 | | | — | | | 195,452 | | | 260,600 | Non-compete | | 114 | | | 46,300 | | | 2,316 | | | — | | | 1,158 | | | — | | | 2,316 | | | — | | | 43,984 | | | 46,300 | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Total intangible assets | | | | $ | 7,463,943 | | $ | 3,259,205 | | $ | 2,568,860 | | $ | 284,403 | | $ | 164,197 | | $ | 690,345 | | $ | 295,060 | | $ | 4,204,738 | | $ | 4,895,083 |
| | | Intangible asset class | | Remaining Years | Customer relationships | | 5.3 | Tradename | | 8.7 | Non-competes | | 8.7 | Backlog | | 0.9 | All intangible assets | | 5.8 |
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