10. Is there a ban on donations from corporations with government contracts to candidates?

Law on Financing of Political Entities, Article 11, paragraph 4.

11.4. Candidates of political subjects cannot accept any donation outside the rules established through this law for the financing of political subjects. No donation can be made directly to the candidate, but must go through the political entity, respecting the provisions of this law.

Candidates of political entities are not allowed to receive direct donations; instead, all financial transactions must go through the exclusive account of the political entity.