Jurairat Unhaka, a former executive of Shin, is among the contenders for the post of president of TOT, according to a source at the state agency.
The other five contenders for the post include TOT SVP Somkual Bruminhent and former TOT union member Porncha Meemak.
Unhaka, currently CEO of Siam Paper, was one of the veteran executives of Shin founded by caretaker Prime Minister Thaksin Shinawatra. She also has close ties with Thaksin's wife, Khunying Pojaman.
Unhaka has served as Shin's VP for finance and EVP for finance.
Unhaka's last position in the Shin group before resigning in 2001 was managing director of its Internet venture capital firm, AD Venture.
TOT stopped accepting applications for its top post last week.
The contenders for the post have to have experience of managing an organization with annual revenues of more than 5 billion baht ($133 million), and must not have been a member of management of the telecom firms under TOT concessions in the past three years. The term of the TOT president is four years.
TOT has operated without a president for several months since the board removed Teerawit Charuwat from the post in May, citing his failure to achieve business goals.
TOT is looking for a new president to steer it through intensifying competition due to market liberalization.