If the scuba diving school owns its own boat for diving purposes the foreign shareholding
in the company under which the business is run must be limited to less than 30% of the total shareholding. Any more foreign shareholdings and the company will be regarded as a foreign entity under the Thai Vessel Act.
Thailand TAT tourism license regulations restricts foreign participation in companies engaging in tourist related businesses. The application of this license requires a Thai management in the company. A solely foreign managed Thai company would not be able to allowed a tourist licence.