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Equity - Shareholders' composition (Details) - shares | Dec. 31, 2018 | Dec. 31, 2017
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Shareholders' composition: |  |
Number of shares | 101,017,081,114 | 99,444,132,192
% of Equity Holding (in percentage) | 100.00% | 100.00%
Sociedad Administradora de la Obligacion Subordinada SAOS S.A. |  |
Shareholders' composition: |  |
Number of shares | 28,593,701,789 | 28,593,701,789
% of Equity Holding (in percentage) | 28.31% | 28.75%
LQ Inversiones Financieras S.A. |  |
Shareholders' composition: |  |
Number of shares | 27,460,203,382 | 26,733,861,635
% of Equity Holding (in percentage) | 27.18% | 26.88%
Sociedad Matriz del Banco de Chile S.A. |  |
Shareholders' composition: |  |
Number of shares | 12,138,573,251 | 12,138,567,444
% of Equity Holding (in percentage) | 12.02% | 12.21%
Other minority shareholders |  |
Shareholders' composition: |  |
Number of shares | 32,824,602,692 | 31,978,001,324
% of Equity Holding (in percentage) | 32.49% | 32.16%

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