11. Is there a ban on donations from corporations with partial government ownership to political parties?

'Among the prohibitions, the most common have to do with donations from foreign governments, institutions, and individuals (most of the countries, except El Salvador), government contractors (for example, Argentina and Bolivia)' (Source: Cost of Democracy: Essays on Political Finance in Latin America. International IDEA. 2016)

Since government contractors are forbidden it's reasonable that corporations with partial government ownership also is.