Need to change my Non-Immigrant B visa?

[hatyaiair]

My friend has asked me an important question that I cannot answer. He received a multiple entry Non-Immigrant B visa in the UK. He then entered LOS. He then received his work permit from the company that hired him. Now the company says he needs to change his visa for a different kind of work visa? I find this confusing because he has the Non-Immigrant B visa. Is this not all he needs?

Also the visa will expire 1 month before the work permit because he received it before the work permit. Is this an issue because normally my understanding is the work permit is renewed prior to the visa.

[PoorSucker]

I think the company asks him to make an extension based on work at immigrations.

Extension of Thai Business Visa
The Thai "B" or Business Visa can be extended to a one year visa in country as follows.
The extension of the visa is normally based on employment and as such there are certain regulations governing the company who is employing you.

These are the regulations for the extension of the "B" Business Visa:
1. The business must be registered in Thailand.
2. The company must be capitalized to at least Baht 2 Million while operating fund must be at least Baht 1 Million.
3. The company must have a ration of at least 4 : 1 - Four Thais for every foreigner.
4. You must earn at least in accordance with the level specified for each nationality by the Labour Department.

Duration of the Extension
- One year at a time.

Documents required for the extension:
1. Application form (T.M. 7 )
2. Passport or document used in lien of passport and its copies .
3. The applicants 4 x 6 cm. photograph .
4. Extension fee Baht 1,900.-
5. The company letters certifying as follows ;
- Nature of business
- Reason or necessity in employing the applicant his / her position, salary and education background.
- Number of Thai and foreign employees.
6. Copies of work permit or receipt of work permit application.
7. Company's annual balance sheets.
8. The juristic persons Annual Income Tax Declaration Form (Form No.50) of the latest year and its receipt of payment.
9. Thai employees Monthly Income Tax Declaration Form (Form No.1 ) of the latest month and its receipt of payment.
10. The applicants Annual Income Tax Declaration Form (Form No.91) of the latest year and its receipt of payment.
11. The official letter that certify the registration of such juristic person.
12. Business Registration or Business License.
13. Value Added Tax Registration and list of share holders.
14. A map that indicate location of the Company.
15. For those who operate export business, the documentary evidence clarifying its export activities is needed.
16. For those who operate tourism business, the documentary evidence clarifying its total number of tourist that brought in by the company is needed.

Some Immigrations offices.
17. Picture of all the company's employees at work
18. Picture of all company's employees in front of the office with clear name of the company showing

N.B. In case of necessity , documents No.7 , 8 , 9 , and 10 can be substituted by the company letters stating its reason.