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Inventories

12 Months Ended

Dec. 31, 2022

11 Inventories

The balance of this account comprises the following amounts:

Composition

	December 31, 2022	December 31, 2021
Finished products (i)	160,519	160,318
Work in process	73,993	51,152
Raw materials	30,773	27,081
Imports in progress	347	1,681
Right to returned goods (ii)	818	2,131
	266,450	242,363

(i)	These amounts are net of slow-moving items and net realizable value.
(ii)	Represents the Company’s right to recover products from customers when customers exercise their right of return under the Company’s returns policies, where the Company estimates the volume of goods returned based on experience and foreseen expectations.

Changes in provision for losses with slow-moving inventories, net realizable value and provision for right to returned goods are broken down as follows:

b. Changes in provision

	December 31, 2022		December 31, 2021		December 31, 2020
Opening balance	58,723		62,210		69,080
Additions	46,138		24,178		8,783
(Reversals)	(5,214	)	(2,061	)	(4,726	)
Inventory losses (i)	(15,598	)	(25,604	)	(10,927	)
Closing balance	84,049		58,723		62,210

(i)	Refers substantially to physical books destroyed, previously provisioned, due to indication of damage or obsolescence caused by changes in the educational content during the school year.