6. Is there a ban on donations from Trade Unions to candidates?

Article 10, the resolution of the high independent instance of elections,2022-17, 1 July 2022, the rules, procedures, and methods to financing electoral campaign:
- It is prohibited to finance the campaign with funds that come from:
- Foreign sources, 
- Anonymous sources,
- A legal entity, public or private, whether its activity has a commercial nature or aims to achieve a non-profit interest,
- From money laundering in accordance with the legislation in force and a final criminal ruling was issued against it.
All disguised campaign financing is prohibited.

Unofficial English translation.

There is a ban against donations from legal entities.