12. Is there a ban on donations from corporations with partial government ownership to candidates?

Art. 168. "(3) It shall be prohibited to use public administrative resources gratuitously in connection with the election campaign."

Supplementary provisions. Art. 18. "Public administrative resources shall be on-budget resources, premises, automobiles, airplanes and other means of transport, equipment and other movable and immovable things constituting State or municipal property, allocated to the administration, the central and local government authorities, and the State-owned and municipal-owned enterprises, as well as the work of administration employees

Source: Article 168 (3) and Art. 18 (see chapter Supplementary provisions), The Election Code, 2014

There is no explicit ban on donations from corporations with partial government ownership to political parties. However there is a ban on using public administrative resource including budget available to the state and local enterprises.