9. Is there a ban on donations from corporations with government contracts to political parties?

"Section 74       No political party shall receive a donation for carrying out its political activities from:

            (1) a person not of Thai nationality;

            (2) a juristic person under the law of a foreign country carrying out its business or activities or having its registered branch in or outside the Kingdom;

            (3) a juristic person registered in the Kingdom consisting of persons not being of Thai nationality who hold share capital or hold more than forty-nine per cent of shares. In the case of a public company limited listed registered with The Stock Exchange of Thailand, the consideration under this sub-section shall apply the public firm’s shareholder registration book. The shares hold by either anonymous or the representative of anonymous shall be considered shares hold by persons of not being Thai;

            (4) a group of person or juristic person receiving capital or supporting money from a foreign country, and having an objective to carry out any activity for the benefit of persons not being of Thai nationality or having a manager or a member of its executive committee who is not a person of Thai nationality;

            (5) a person, group of person or juristic person receiving a donation with a view to carrying out the activities of a political party or any political activity from a person, group of person or juristic person under (1) (2) (3) or (4);

            (6) a person, group of person or juristic person in the same manner as (1) (2) (3) (4) or (5) prescribed by the Election Commission.

            Paragraph one shall not apply to the case of a member receiving money, property or any other benefit for non-political activities.

Section 75       No person, group of person or juristic person under Section 75 shall donate money, property or any other benefit to any political party or its members with a view to carrying out the activities of the political party or any other political activity.

Section 76       No State agency, State enterprises, any other State agency or enterprise of which the State is a major shareholder, shall donate money, property or any other benefit to any political party or participate in activities under Section 64.

            An enterprise of which the State is a major shareholder under paragraph one means the enterprise in which the State is a partner or holds the largest number of shares when compared with each and all of the other partners or shareholders, or where the proportion is one-third of the controlled partnership stakes or shares or of the total partnership stakes or shares of such enterprise.

            Paragraph one shall apply to temple or other juristic persons having the religious objective and religious organization whether having juristic status or not. The Election Commission has the right to decide the compliance with other juristic persons established for public interest or non-profitable activities."

Source: Sections 74-76, Organic Act on Political Parties, 2017 (Unofficial translation by the researcher)