8. Other operating expenses

in PLN thousand	For the year ended 31 December 2018	For the year ended 31 December 2017 (transformed data)
Loss on sale of property, plant and equipment	(81)	(673)
Provision for recultivation of ash storages	(3 132)	(2 853)
Donations	(685)	(714)
Penalities, compensations and fines paid	(27)	(58)
Costs of liquidation of fixed assets and materials	-	(71)
Maintenance costs of ESP Młoty	(164)	(835)
Maintenance costs of social facilities	(56)	(87)
Receivables' write-offs	(487)	(11)
Costs of leased assets	(27)	-
Other	(187)	(373)
	(4 846)	(5 675)