He said the ministry holds shares in a large number of companies but could not generate revenue from the holding. Proceeds from the shares would help reduce the public debt.
He also insisted that the policy would not involve stakes in listed companies.
The ministry proposes a law to extend the repayment period of debts worth Bt720 billion.
In the 2016 fiscal year, it is estimated that the government would allocate Bt61 billion for principal repayment and Bt139 billion for interest payment, Sommai said.