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

"The political entities are prohibited from receiving material and financial assistance and in-kind contributions from: other states, companies and legal entities outside the territory of Montenegro; natural persons and entrepreneurs who do not have the right to vote in Montenegro, anonymous donors, public institutions, legal entities and companies with a share of state-owned capital; trade unions; religious communities and organizations; non-governmental organizations; casinos, bookmakers and other providers of games of chance. A person who was convicted by a final judicial decision for a criminal offense with the elements of corruption and organized crime is prohibited from financing a political entity. In the period from the day of calling until the day of holding of the elections, the natural and legal persons referred to in paragraphs 1 and 2 of this Article are prohibited from running media and public campaigns on behalf or for the needs of a political entity. Political entities shall not borrow from natural persons. Legal entities, companies and entrepreneurs and related natural persons which, based on a contract with the competent bodies, in accordance with the Law, performed affairs of public interest or concluded a contract through the public procurement procedure, in the period of two years preceding the conclusion of the contract, for the duration of the business relationship, as well as two years after the termination of the business relationship shall not give contributions to the political entities. Natural persons and legal entities against which the tax authority initiated a procedure of forced collection of debt through the adoption of the decision on forced collection of tax, shall not make contributions to political entities. Legal entity which failed to meet the outstanding obligations towards the employees within the past three months shall not give contributions to legal entities."

Source: Article 24, LAW ON FINANCING OF POLITICAL ENTITIES AND ELECTION CAMPAIGNS 2014