NOTE 5 — TRADE ACCOUNTS RECEIVABLE


	2018	2017
Trade accounts receivable - in Brazil	1,056,625	1,265,431
Trade accounts receivable - exports from Brazil	373,593	139,162
Trade accounts receivable - outside of Brazil	1,929,595	1,525,466
(-) Impairment loss on trade receivables	(158,157)	(131,639)
	3,201,656	2,798,420

Accounts receivable by aging are as follows:


	2018	2017
Current	2,362,408	2,234,723
Past-due:
Up to 30 days	792,569	467,901
From 31 to 60 days	63,294	96,852
From 61 to 90 days	10,133	17,636
From 91 to 180 days	22,261	27,841
From 181 to 360 days	26,003	22,985
Above 360 days	83,145	62,121
(-) Impairment loss on trade receivables	(158,157)	(131,639)
	3,201,656	2,798,420

The Company's maximum exposure to credit risk, net of allowance for doubtful accounts, is the amount of accounts receivable. The credit quality of accounts receivable to maturity is considered adequate, and the value of the effective risk of possible losses on accounts receivable from customers is presented as allowance for doubtful accounts.

The changes in the allowance for doubtful accounts are as follows:


Balance as of January 1, 2016		(185,261)
Provisions for bad debt during the year		(85,661)
Recoveries in the year		16,880
Write-offs		37,679
Loss of control by selling of subsidiary (note 3.4)		17,594
Exchange variation		(537)
Balance as of December 31, 2016		(199,306)
Provisions for bad debt during the year		(98,476)
Recoveries in the year		80,134
Write-offs		73,591
Loss of control by joint venture creation		1,487
Assets held for sale		11,207
Exchange variation		(276)
Balance as of December 31, 2017		(131,639)
Provisions for bad debt during the year		(111,900)
Recoveries in the year		101,986
Write-offs		39,943
Exchange variation		(5,136)
Effects of IFRS 9 adoption		(48,063)
Assets held for sale		(3,348)
Balance as of December 31, 2018		(158,157)