Thailand's three restricted business lists for foreign investors

01Why this has to be settled before you register

The restricted lists do not decide whether you can come to Thailand. They decide whether foreign capital can run your particular business on its own, whether it needs a licence first, and whether a Thai shareholder has to sit in the structure. That in turn drives how the registered business scope is worded, how the shareholding is built, and whether you need a licence route or a promotion route. It also feeds into which type of entity you set up.

The trap is timing. A business scope that was clean at registration is not clean forever. Expansion, adding an activity, extending from manufacturing into trading or after-sales service: any of these can touch a list for the first time. By then the company is already trading, and fixing the structure costs far more than getting it right beforehand.

02How the three lists are structured

The three lists are not three degrees of the same restriction. Each has a different gate, and the gates open in different ways.

• List 1: prohibited outright. Foreigners may not operate these at all, and there is no room for exemption. Promotion status and treaty benefits do not reach this list. Typical entries include newspapers and broadcasting, parts of farming, forestry and fishing, extraction of Thai herbal medicines, trading in antiques, and dealing in land.
• List 2: cabinet-level approval required. These are activities touching national security, culture and tradition, and natural resources. On top of the approval itself there are usually requirements on the Thai shareholding percentage and on the number of Thai directors. Typical entries include arms and ammunition, domestic transport by land, water and air, antiques, artworks and traditional handicrafts, mining, and timber processing.
• List 3: a licence is enough. This is the broadest and most varied list, and the one Chinese-invested companies land in most often: accounting, legal, architectural and engineering services, construction, brokerage and agency work, wholesale and retail, advertising, hotels, restaurants. Some activities on this list carry an exception tied to a minimum investment or capital threshold, and a business that meets the threshold may be exempt from applying separately for a licence.

Wholesale and retail is the one to watch. Plenty of manufacturers drift into it without noticing: they start selling directly to local customers, or distributing other group products, and the character of the business slides from manufacturing towards trading and retail. How a given format is classified — a standalone store, a counter, a shop-in-shop, an online platform — is open to interpretation and has to be assessed case by case.

03Lawful routes past the 50% foreign ownership cap

There is a second layer behind the lists. Whether a company counts as a "foreigner" in the first place is itself a question of shareholding. If you need a higher foreign percentage in a restricted business, there are essentially three lawful routes.

• Investment promotion status or industrial estate status. This is the main legal basis and the route manufacturers use most often; see whether a wholly foreign-owned manufacturing project can still apply.
• A national-treatment exemption under a specific treaty. Available to investors of certain nationalities. Chinese investors generally do not qualify.
• Another specific law taking precedence in particular cases.

Note that there is no fourth route. Using a Thai nominee shareholder to get around the ownership limit is not a structure, it is criminal exposure. The Act carries specific penalties for nominee arrangements, including imprisonment and fines, and the court can order the nominee relationship terminated. Directors who knew and let it stand can be personally liable alongside the company.

04The rules have been moving, so check the date on what you read

At least several changes have been running in parallel over the past year or two. At government level, an initiative to relax foreign business restrictions and simplify approvals has been approved but is still under review. The cabinet has approved a draft amendment removing several activities from the restricted lists, but the amendment has not yet been gazetted and is not in force. Separately, the competent authority has been considering reclassifying particular industries such as data centres, which would change the foreign-ownership constraint on them if it lands (see source 2 below).

These sit at different stages: one is still under review, one is approved but not yet in force, and one is still at draft and hearing-preparation stage. When you see a headline saying Thailand has relaxed its foreign investment restrictions, first work out which change it means and how far that change has actually got. Building a structure on a draft that is not yet law is an expensive mistake.

05How to check your own business

The practical method is three steps. First, list every activity you expect to carry out over the next two or three years, not only what you do today. Second, check each one against the lists and mark it as not restricted, List 3 with a licence, or higher. Third, for anything restricted, decide whether to take the licence route, the promotion route, or to redraw the boundary of the activity itself.

Which list your business actually falls in, whether a threshold exception applies to it, and whether your existing registered scope has already crossed a line all have to be checked line by line against your specific business description and your registration. That check is worth running once before registration, and again each time before you add an activity.