Weerawong Chittmittrapap, a Thai and US-qualified lawyer, is said to be in line to head the office.
The White & Case office lost its two-year association with local Thai firm the Pacific Legal Group at the end of last year when its managing director, Paul Russell, decided to run his firm independently once more.
Associations with local practices have been used by foreign firms to break into Bangkok. Clifford Chance set up at the beginning of this year with an association with Thai firm Siam Niti.
In France, White & Case has also recruited Michael Hancock, the in-house lawyer of French telecomms company Alcatel CIT, to its Paris office as a consultant.