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PROPERTY, PLANT AND EQUIPMENT
 12 Months Ended
Dec. 31, 2022
Disclosure of detailed information about property, plant and equipment [abstract]  
PROPERTY, PLANT AND EQUIPMENT PROPERTY, PLANT AND EQUIPMENT
Land Buildings Building improvement Machinery and equipment Motor vehicle
and other asset		Office
equipment		Construction in
progress		Total
US$’000 US$’000 US$’000 US$’000 US$’000 US$’000 US$’000 US$’000
Cost
At January 1, 20216,872 52,116 7,336 100,265 5,969 7,588 15,661 195,807 
Additions— — 6 406 374 761 7,109 8,656 
Disposals— (37)— (7,232)(517)(474)— (8,260)
Transfer— (45)108 4,523 88 11 (4,642)43 
Exchange differences(856)(3,942)(613)(9,798)(438)(339)(1,316)(17,302)
At December 31, 20216,016 48,092 6,837 88,164 5,476 7,547 16,812 178,944 
Additions— 210 353 454 298 645 1,593 3,553 
Disposals— — — (3,783)(304)(457)(5)(4,549)
Transfer— 4,038 1,280 10,637 — 200 (16,155)— 
Exchange differences(296)(1,753)(272)(4,158)(160)(535)(840)(8,014)
At December 31, 20225,720 50,587 8,198 91,314 5,310 7,400 1,405 169,934 
Depreciation/Impairment
At January 1, 2021— (38,485)(4,856)(87,544)(3,857)(6,365)— (141,107)
Depreciation charge for the year— (993)(403)(2,184)(504)(506)— (4,590)
Impairment— — — (5)— (2)— (7)
Disposals— 36 — 7,170 505 468 — 8,179 
Transfer— 45 — — (87)— — (42)
Exchange differences— 3,389 428 8,639 268 318 — 13,042 
At December 31, 2021— (36,008)(4,831)(73,924)(3,675)(6,087)— (124,525)
Depreciation charge for the year— (1,069)(438)(2,434)(435)(556)— (4,932)
Impairment— — — — — — — — 
Disposals— — — 3,783 242 452 — 4,477 
Transfer— — — — — — — — 
Exchange differences— 1,482 194 3,557 88 438 — 5,759 
At December 31, 2022— (35,595)(5,075)(69,018)(3,780)(5,753)— (119,221)
Net book value
At December 31, 20225,720 14,992 3,123 22,296 1,530 1,647 1,405 50,713 
At December 31, 20216,016 12,084 2,006 14,240 1,801 1,460 16,812 54,419 
At January 1, 20216,872 13,631 2,480 12,721 2,112 1,223 15,661 54,700 
15(a)    Impairment of property, plant and equipment
In 2022, 2021 and 2020 our Company recorded an impairment loss of $0, $7 and $202 on property, plant and equipment at Sigma Cable, Shanghai Yayang and SFO facilities. The impairment is presented within cost of sales in consolidated income statements, other operating expenses in Note 7(b), and the impairment of property, plant and equipment of ROW, North Asia and Thailand segments in Note 5.
Our Company identified impairment at Sigma Cable due to lack of profitability. Our Company determined that certain machinery and equipment would not generate the expected future cash flows. The impairment test revealed that the total carrying amount of these assets was greater than their total recoverable amount. After considering the relevant objective evidence, our Company recorded an impairment loss.
15(a)    Impairment of property, plant and equipment (continued)
Our Company performed a valuation for utilized machinery measured at fair value less costs to sell using a cost approach due to closure of the manufacturing facilities at Shanghai Yayang. Its fair value measurement was classified as Level 3 of the fair value hierarchy. After considering the relevant evidence, the key assumption used included replacement costs, residual value and remaining useful life of these existing assets. The impairment test revealed that the recoverable amount was lower than the carrying amount.
Our Company considers the market demand for SFO’s products and performed an impairment test on the CGU composed of property, plant and equipment used in the manufacturing of fiber optic cables at SFO. Our Company determined the recoverable amount of the CGU to be $0 based on the value in use.
15(b)    Pledge
Information about the property, plant and equipment that were pledged to others as collaterals is provided in Note 27(e) (i).