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Contract Assets | 12 Months Ended
--- | ---
Dec. 31, 2019
Contract Assets [Abstract] |
Contract Assets |
14. | contract ASSETs
14(a)Assets related to contracts with customers
| As of December 31, |
| 2019 |  | 2018 |
| US$’000 |  | US$’000 |
Contract assets - current |  | 4,686 |  |  | 1,460 |
There were no advances received or retentions on SDI service contracts during the financial years ended December 31, 2019 and 2018. The Company mainly conducts its SDI services contract with customers within public sector, and the expected credit loss on contract assets is close to zero. 14(b)Unsatisfied supply, delivery, and installation (SDI) services contracts The following table shows the aggregate amount of the transaction price allocated to the unsatisfied performance obligations.
| As of December 31, |
| 2019 |  | 2018 |
| US$’000 |  | US$’000 |
Unsatisfied long-term SDI contracts |  |  |  |  |  |
Expected to be recognized as revenue over 3 years |  | 156,592 |  |  | 14,922 |

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- Definition The disclosure of assets recognised from the costs to obtain or fulfil contracts with customers. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 15 -IssueDate 2019-01-01 -Paragraph 128 -Subparagraph a -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=15&code=ifrs-tx-2019-en-r&anchor=para_128_a&doctype=Standard -URIDate 2019-03-27 + Details
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