14. Other operating expenses

Other operating expenses

in € thousand

 

2021

 

2020

Consultancy, services, insurance and auditing expenses

 

64,367

 

50,229

External maintenance services

 

42,217

 

46,775

Leasing costs

 

12,286

 

7,211

Travel expenses, advertising and promotional costs

 

4,017

 

2,982

Other personnel expenses

 

3,431

 

3,519

External and internal cleaning costs

 

2,890

 

2,529

Other taxes

 

2,708

 

2,440

Other venture expenses

 

2,504

 

1,426

Postage and telecommunications costs

 

1,901

 

1,828

Impairment losses on financial assets

 

1,782

 

2,731

Expenses from exchange rate differences

 

991

 

1,353

Losses on the disposal of property, plant and equipment

 

780

 

558

Other

 

18,795

 

15,156

 

 

158,669

 

138,737

Expenses for consultancy, services, insurance and auditing increased, mainly due to an increased need for project-related consultancy.

Expenses for external maintenance services decreased due to higher real estate-related maintenance expenses in the previous year and a greater need for maintenance to the IT infrastructure in the previous year.

The HHLA Group regards the impairment losses on financial assets listed above as immaterial and has therefore decided not to show them separately in the income statement.

Other operating expenses also include numerous smaller individual items.