| Schedule of company and Bank's actual and required regulatory capital |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | To Be Well Capitalized Under | | | | | | | | | | | | | | | | Prompt Corrective Action | | | | Actual | | | For Capital Adequacy Purposes | | | Provisions | | As of June 30, 2026 | | Amount | | Ratio | | | Amount | | Ratio | | | Amount | | Ratio | | (dollars in thousands) | | | | | | | | | | | | | | | | | | | Total Capital (to Risk-Weighted Assets) | | | | | | | | | | | | | | | | | | | Consolidated | | $ | 618,987 | | 13.81 | % | | $ | 358,650 | | 8.00 | % | | $ | n/a | | n/a | | Southern Bank | | | 592,351 | | 13.37 | % | | | 354,515 | | 8.00 | % | | | 443,143 | | 10.00 | % | Tier I Capital (to Risk-Weighted Assets) | | | | | | | | | | | | | | | | | | | Consolidated | | | 562,917 | | 12.56 | % | | | 268,988 | | 6.00 | % | | | n/a | | n/a | | Southern Bank | | | 536,920 | | 12.12 | % | | | 265,886 | | 6.00 | % | | | 354,515 | | 8.00 | % | Tier I Capital (to Average Assets) | | | | | | | | | | | | | | | | | | | Consolidated | | | 562,917 | | 11.03 | % | | | 204,072 | | 4.00 | % | | | n/a | | n/a | | Southern Bank | | | 536,920 | | 10.45 | % | | | 205,606 | | 4.00 | % | | | 257,007 | | 5.00 | % | Common Equity Tier I Capital (to Risk-Weighted Assets) | | | | | | | | | | | | | | | | | | | Consolidated | | | 547,151 | | 12.20 | % | | | 201,741 | | 4.50 | % | | | n/a | | n/a | | Southern Bank | | | 536,920 | | 12.12 | % | | | 199,414 | | 4.50 | % | | | 288,043 | | 6.50 | % |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | To Be Well Capitalized Under | | | | | | | | | | | | | | | | Prompt Corrective Action | | | | Actual | | | For Capital Adequacy Purposes | | | Provisions | | As of June 30, 2025 | | Amount | | Ratio | | | Amount | | Ratio | | | Amount | | Ratio | | (dollars in thousands) | | | | | | | | | | | | | | | | | | | Total Capital (to Risk-Weighted Assets) | | | | | | | | | | | | | | | | | | | Consolidated | | $ | 577,150 | | 13.95 | % | | $ | 331,050 | | 8.00 | % | | $ | n/a | | n/a | | Southern Bank | | | 545,293 | | 13.34 | % | | | 326,920 | | 8.00 | % | | | 408,650 | | 10.00 | % | Tier I Capital (to Risk-Weighted Assets) | | | | | | | | | | | | | | | | | | | Consolidated | | | 517,842 | | 12.51 | % | | | 248,288 | | 6.00 | % | | | n/a | | n/a | | Southern Bank | | | 494,186 | | 12.09 | % | | | 245,190 | | 6.00 | % | | | 326,920 | | 8.00 | % | Tier I Capital (to Average Assets) | | | | | | | | | | | | | | | | | | | Consolidated | | | 517,842 | | 10.61 | % | | | 195,249 | | 4.00 | % | | | n/a | | n/a | | Southern Bank | | | 494,186 | | 10.05 | % | | | 196,782 | | 4.00 | % | | | 245,977 | | 5.00 | % | Common Equity Tier I Capital (to Risk-Weighted Assets) | | | | | | | | | | | | | | | | | | | Consolidated | | | 502,197 | | 12.14 | % | | | 186,216 | | 4.50 | % | | | n/a | | n/a | | Southern Bank | | | 494,186 | | 12.09 | % | | | 183,892 | | 4.50 | % | | | 265,622 | | 6.50 | % |
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