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Related Party Transactions | 12 Months Ended
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Dec. 31, 2019
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Related Party Transactions |
36. | RELATED PARTY TRANSACTIONS
Balances and transactions within the Group had been eliminated upon consolidation. Details of transactions between the Group and other related parties were disclosed as follows:
| a. | Related parties
In addition to those disclosed in Note 14, the related parties were as follows:
Related Parties |  | Relationship with the Company
ASE Cultural and Educational Foundation |  | Substantial related party
| b. | The Group contributed NT$100,000 thousand (US$3,343 thousand) to ASE Cultural and Educational Foundation in 2017, 2018 and 2019, respectively, for environmental charity in promoting the related domestic environmental protection and public service activities (Note 38).
| c. | As disclosed in Note 32, USIE repurchased its own 1,283 thousand and 2,805 thousand ordinary shares from the Group’s key management personnel with approximately NT$653,244 thousand and NT$1,247,187 thousand (US$41,698 thousand) in February 2018 and July 2019, respectively.
| d. | In 2019, ASE purchased real estate properties from associates with the amount of NT$2,326,000 thousand (US$77,767 thousand), which was primarily based on the independent professional appraisal reports and has been fully paid in September 2019.
| f. | Compensation to key management personnel
|  | For the Year Ended December 31
|  | 2017 |  | 2018 |  | 2019
|  | NT$ |  | NT$ |  | NT$ |  | US$ (Note 4)
Short-term employee benefits |  | $ | 860,631 |  |  | $ | 1,041,216 |  |  | $ | 1,027,191 |  |  | $ | 34,343 |
Post-employment benefits |  |  | 2,858 |  |  |  | 3,884 |  |  |  | 2,208 |  |  |  | 74 |
Share-based payments |  |  | - |  |  |  | 9,145 |  |  |  | 134,544 |  |  |  | 4,498 |
|  | $ | 863,489 |  |  | $ | 1,054,245 |  |  | $ | 1,163,943 |  |  | $ | 38,915 |
The compensation to the Group’s key management personnel was determined according to personal performance and market trends.

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- Definition The entire disclosure for related parties. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 24 -IssueDate 2019-01-01 -Section Disclosures -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=24&code=ifrs-tx-2019-en-r&doctype=Standard&dita_xref=IAS24_g13-24_TI -URIDate 2019-03-27 + Details
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