Preference or preference shares in Thailand are usually higher ranking shares in certain matters of the company limited (also see articles of association). The structure of preference shares opposite ordinary shares in a Thai company is typically used to give control to a group of shareholders above another group of shareholders in the company. 

A non-profit association in Thailand is a union of persons who for a particular purpose join in a juristic entity (the association) that does not operate to gain profit (non-profit) nor distributes its surplus funds to its members but uses them to help persue the associations purpose. In Thailand non-profit associations are governed by the Thailand Civil and Commercial Code sections 78 to 109.

Thai corporation income tax (or corporate tax ) refers to as the percentage of the profits of registered companies, i.e. tax levied on the profits made by companies or associations. A newly established company in Thailand is liable for income tax and must obtain a tax I.D. card and number for the company from the Thailand Revenue Department within 60 days of incorporation or the start of operations.

The articles of association of a company limited in Thailand together with the memorandum of association form the constitution of a Thai company. The articles of association are also referred to as articles. The articles, opposite the memorandum, govern the internal affairs of the company and the rights and duties among the Thai or foreign shareholders themselves, such as the rights and duties of directors and shareholders in meetings (e.g. rights to different classes of shares).

The memorandum of association of a Thai company limited or simply memorandum forms part of the limited company’s formation documents. Opposite to the 'articles of association' it basically governs the relationship between the company limited and the outside world. It's one of the first constitutional documents of a company limited in Thailand containing fundamentals such as the approved company name, the number of objectives, shareholders, subscription to and original share capital. The company formation documents of a Thai company are in Thai script only.

A Thai shareholder is an individual or another Thai company or juristic entity who owns one or more shares of the company. Thai shareholders may earn dividends and shareholders may have ordinary or preference shares. All shareholders in the company must have voting rights. Bearer shares (meaning shares in the company which are transferable by delivery of the share certificate) in a partly foreign owned company are not allowed in Thailand. Shares are registered in a person's or juristic entity's name and are transferred at the Department of Business Development and not by handing over the share certificates.

Shareholders must have a share certificate issued in their name by the limited company in Thailand.