14. Other operating expenses

Other operating expenses

in € thousand

 

2020

 

2019

Consultancy, services, insurance and auditing expenses

 

50,229

 

48,071

External maintenance services

 

46,775

 

43,360

Leasing costs

 

7,211

 

9,472

Other personnel expenses

 

3,519

 

3,479

Travel expenses, advertising and promotional costs

 

2,982

 

4,840

Impairment losses on financial assets

 

2,731

 

1,064

External and internal cleaning costs

 

2,529

 

2,551

Other taxes

 

2,440

 

2,924

Postage and telecommunications costs

 

1,828

 

1,604

Other venture expenses

 

1,426

 

827

Expenses from exchange rate differences

 

1,353

 

520

Losses on the disposal of property, plant and equipment

 

558

 

144

Other

 

15,156

 

15,719

 

 

138,737

 

134,575

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

Expenses for external maintenance services mainly increased due to higher real estate-related maintenance expenses and a greater need for maintenance to the IT infrastructure.

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. The increase in expenses is chiefly attributable to a greater need for adjustments to trade receivables as a consequence of the prevailing coronavirus pandemic in the reporting year.

Other operating expenses also include numerous smaller individual items.