	As of December 31,
	2018			2017
	US$’000			US$’000
Trade receivables		81,274			115,875
Less: Loss allowances		(1,657	)		(3,472	)
Trade receivable, net		79,617			112,403
Other receivables		12,502			9,537
Less: Loss allowances		(80	)		(28	)
Other receivable, net		12,422			9,509

	Individually impaired			Collectively impaired			Total
	US$’000			US$’000			US$’000
At January 1, 2017		2,981			361			3,342
Charge for the year		438			172			610
Write-off		(385	)		(44	)		(429	)
Unused amounts reversed		(269	)		(39	)		(308	)
Currency translation adjustment		223			37			260
Reclassification		(3	)		—			(3	)
At December 31, 2017		2,985			487			3,472
Opening loss allowance as at January 1, 2018 - calculated under IFRS 9								(16	)
At January 1, 2018								3,456
Charge for the year								726
Write-off								(2,292	)
Unused amounts reversed								(156	)
Currency translation adjustment								(74	)
Reclassification								(3	)
At December 31, 2018								1,657

The Company recorded a loss allowance on trade receivables amounted to $2.0 million, for a specific customer of a subsidiary, as of December 31, 2017. This loss allowance on trade receivables was written off in 2018 based on the court judgement with no reasonable expectation of recovery.

							Past due
	Total			Current			1-30 days			31-60 days			61-90 days			91-120 days			>120 days
	US$’000			US$’000			US$’000			US$’000			US$’000			US$’000			US$’000
December 31, 2018
Expected loss rate		2.04	%		0.07	%	0.86%				3.95	%	20.18%			31.71%			64.70%
Gross carrying amount - trade receivables		81,274			67,318			9,183			2,276			327			82			2,088
Loss allowances		1,657			45			79			90			66			26			1,351
Trade receivable, net		79,617			67,273			9,104			2,186			261			56			737

January 1, 2018
Expected loss rate		2.98	%		0.03	%		0.37	%		2.07	%		8.36	%		9.87	%		84.65	%
Gross carrying amount - trade receivables		115,875			90,686			17,105			3,389			347			557			3,791
Loss allowances		3,456			29			64			70			29			55			3,209
Trade receivable, net		112,419			90,657			17,041			3,319			318			502			582

Past due but not impaired

Total

Neither past due nor impaired

Past due 1-3 months

Past due 3-6 months

Past due 6-12 months

Past due over 12 months

December 31, 2017

US$’000

Trade receivable, net

112,403

90,503

20,608

654

397

241

The Company applies the IFRS 9 simplified approach to measuring expected credit losses which uses a lifetime expected loss allowance for trade receivables. To measure the expected credit losses, trade receivables have been grouped based on shared credit risk characteristics and the days past due. The expected loss rates are based on the Company’s historical credit loss experience, adjusted to reflect current and forward-looking information on general economic conditions affecting the ability of the customers to settle the receivables.

In the prior year, the impairment of trade receivables was assessed based on the incurred loss model. The Company measured estimated impairment losses on trade receivables based on the inability of its customers to make required payments. The Company considered the following factors when determining the collectability of specific customer accounts: customer credit-worthiness, customer financial condition, past transaction history with the customer, current economic industry trends, and changes in customer payment terms. The impairment losses assessed individually as of December 31, 2017 primarily resulted from the financial difficulties of the counter trading parties and the amounts recognized were the difference between the carrying amount of the trade receivable and the present value of expected collectable amounts.

The Company obtained collateral in respect of doubtful receivables from customers. The collateral takes the form of a lien over the customer’s assets and gives the Company a claim on these assets for the doubtful receivables.

In March 2017, a lawsuit was filed by a debtor to rescind the foreclosure that the Company has undertaken on the collateral in Thailand. The Company’s foreclosure prevailed according to the judgement from the Appeal Court on November 28, 2017. The debtor’s petition reached to the Supreme Court on June 19, 2018, and was denied on March 27, 2019. The Company performed a valuation to determine the fair value of the collateral. As of December 31, 2018, the fair value of the collateral was $1,200, which was lower than the amount of the associated delinquent account, and the Company recognized an impairment loss of $52 in other operating expenses. As of December 31, 2017 the fair values of the collateral was $1,181, which was higher than the amounts of the associated delinquent accounts, and no impairments loss was recognized.

See Note 27(b) credit risk of trade receivables for discussions on how the Company manages and measures credit quality of trade receivables that are neither past due nor impaired.

The carrying amounts of other receivables pledged as collateral against credit facilities received from financial institutions are disclosed in Note 27(e)(ii).