AC Milan will only be sold if the club will benefit from it, according to the club's general manager Adriano Galliani.
Current president and owner Silvio Berlusconi is expected to meet with Bee Taechaubol on Wednesday night to rubber stamp the sale of a majority share to the Thai investor.
Initial negotiations were held towards the end of 2014 with a contract between the two parties already signed, albeit with Berlusconi reserving the right to change his mind.
Taechaubol arrived in Milan on Sunday and is due to leave again on Thursday, meaning Wednesday night is the last opportunity he will have of meeting with Berlusconi.
Completing a deal will end almost three decades of Berlusconi ownership, but Galliani insists that will only happen if all of the boxes are ticked.
"I can't talk about the sale. All that Berlusconi is interested in is the good of Milan," Galliani told reporters in Milan, quoted by La Repubblica.
"And if a sale does go through, which is still to be seen, then it will be for the good of Milan."
Galliani could not reveal any more since he, as well as all Milan employees and directors, are being governed by a pact of secrecy Berlusconi signed with a potential buyer, reported to be Taechaubol.
The Thai broker is not the only person said to be interested in acquiring the Serie A club, however.
Further consortiums from the Far East are also reported to be keen and their interest may have been what prompted Taechaubol to make his trip to Milan this week, to complete a takeover as quickly as possible.
On Wednesday, Berlusconi cancelled a planned trip to Rome, leading to speculation he is set to sign away the Rossoneri.
On the field, Milan risk posting the worst season in the Berlusconi era. That was in 1997, when they finished 11th -- just one position below where they currently are with six games of the season remaining.
"It's only this year that things are not going well," said Galliani, referring to criticism that Clarence Seedorf, who was in charge only for the second half of last season, was to blame for ruining the team.
"We got 35 points in the second half of last season and that's not little, as isn't the first, second and third places we had in the previous years."
The Dutch coach's remaining wages until 2016 were included in financial accounts revealed on Tuesday which showed a €91.3 million loss for the 2014 calendar year.
Half of that, according to Galliani, is due to the fact Milan were not involved in the Champions League.
They will not be participating in that competition again next season while qualification for the Europa League is also looking highly unlikely.