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Bonus Programs (Tables) | 12 Months Ended
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Dec. 31, 2018
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Summary of Number of Shares Held by the Trust | As of December 31, 2018 and 2017, the number of shares held by the trust associated with the Company’s share-based payment plans are as follows:
|  | Number of Shares |
|  | FEMSA UBD |  |  | KOFL |
|  | 2018 |  |  | 2017 |  |  | 2018 |  |  | 2017 |
Beginning balance |  |  | 2,945,209 |  |  |  | 3,625,171 |  |  |  | 935,899 |  |  |  | 1,068,327 |
Shares acquired by the administrative trust to employees |  |  | 913,846 |  |  |  | 1,311,599 |  |  |  | 262,909 |  |  |  | 344,770 |
Shares released from administrative trust to employees upon vesting |  |  | (1,580,595 | ) |  |  | (1,991,561 | ) |  |  | (501,582 | ) |  |  | (477,198 | )
Forfeitures |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |
Ending balance |  |  | 2,278,460 |  |  |  | 2,945,209 |  |  |  | 697,226 |  |  |  | 935,899 |

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- Definition The disclosure of the general terms and conditions of share-based payment arrangements. [Refer: Share-based payment arrangements [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 2 -IssueDate 2018-01-01 -Paragraph 45 -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=2&date=2018-03-01&anchor=para_45&doctype=Standard -URIDate 2018-03-16 + Details
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