If you are a citizen of a country outside the EU and wish to work in Sweden, in most cases you need a work permit.
The Swedish Migration Agency process applications for work permit in Sweden. Apply for a work permit in Sweden at the Swedish Migration Agency's website here.
All fees are available at the Swedish Migration Agency's website here.
There are different types of work permits in Sweden. Information on rules and documentation can be read on the Swedish Migration Agency's website.
If you are interested in working in Sweden, you can also find information on the website Working in Sweden.
Before leaving for Sweden, Thai citizens must contact the Department of Employment in Thailand to get official approval to leave Thailand to work abroad:
Office of Overseas Employment Administration
Department of Employment, Bangkok 10400
Tel: +66 2245 9428
Fax: +66 2245 6717