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Bank loans: Syndicated loan (Details) $ in Thousands, $ in Thousands | Dec. 31, 2024 COP ($) | Dec. 31, 2024 MXN ($) | Apr. 30, 2024 COP ($) | Apr. 30, 2024 MXN ($) | Dec. 31, 2023 MXN ($) | Apr. 30, 2022 COP ($) | Apr. 30, 2022 MXN ($) | Jun. 01, 2015 COP ($) | Jun. 01, 2015 MXN ($)
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Bank loans: |  |  |  |  |  |  |  |  |
Total Loans and Debt | $ 440,000,000 | $ 13,359,456 |  |  | $ 12,224,770 |  |  | $ 440,000,000 | $ 2,897,404
Prepaid Loan |  |  | $ 100,000,000 | $ 438,712 |  | $ 149,999,914 | $ 794,510 |  |
Bancolombia, S. A. |  |  |  |  |  |  |  |  |
Bank loans: |  |  |  |  |  |  |  |  |
Total Loans and Debt | 150,000,000 |  |  |  |  |  |  |  |
Prepaid Loan |  |  | 34,090,909 |  |  | 51,136,744 |  |  |
Banco Ita CorpBanca Colombia S.A. |  |  |  |  |  |  |  |  |
Bank loans: |  |  |  |  |  |  |  |  |
Total Loans and Debt | 102,000,000 |  |  |  |  |  |  |  |
Prepaid Loan |  |  | 23,181,818 |  |  | 34,772,986 |  |  |
Banco Davivienda, S. A. |  |  |  |  |  |  |  |  |
Bank loans: |  |  |  |  |  |  |  |  |
Total Loans and Debt | 90,000,000 |  |  |  |  |  |  |  |
Prepaid Loan |  |  | 20,454,545 |  |  | 30,682,039 |  |  |
Banco de Bogot, S. A. |  |  |  |  |  |  |  |  |
Bank loans: |  |  |  |  |  |  |  |  |
Total Loans and Debt | 37,000,000 |  |  |  |  |  |  |  |
Prepaid Loan |  |  | 10,227,273 |  |  | 12,613,358 |  |  |
Banco de Occidente, S. A. |  |  |  |  |  |  |  |  |
Bank loans: |  |  |  |  |  |  |  |  |
Total Loans and Debt | 37,000,000 |  |  |  |  |  |  |  |
Prepaid Loan |  |  | 8,409,091 |  |  | 12,613,366 |  |  |
Banco Popular, S. A. |  |  |  |  |  |  |  |  |
Bank loans: |  |  |  |  |  |  |  |  |
Total Loans and Debt | 8,000,000 |  |  |  |  |  |  |  |
Prepaid Loan |  |  |  |  |  | 2,726,835 |  |  |
Banco AV Villas, S. A. |  |  |  |  |  |  |  |  |
Bank loans: |  |  |  |  |  |  |  |  |
Total Loans and Debt | 8,000,000 |  |  |  |  |  |  |  |
Prepaid Loan |  |  | 1,818,182 |  |  | 2,727,293 |  |  |
Servicios Financieros, S. A. |  |  |  |  |  |  |  |  |
Bank loans: |  |  |  |  |  |  |  |  |
Total Loans and Debt | $ 8,000,000 |  |  |  |  |  |  |  |
Prepaid Loan |  |  | $ 1,818,182 |  |  | $ 2,727,293 |  |  |

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