The annual event will be held in Bangkok from June 3-5.
After a meeting of FAT executive members, secretary-general Lt Gen Pisan Jundilok said: “The executive committee has picked the UAE, Jordan and Montenegro for this year’s King’s Cup.
“The UAE and Jordan have already confirmed their participation and we are expecting a positive answer from Montenegro in a few days time.”
He added that Montenegro would replace Croatia who wanted to send their second-string side for the King’s Cup.
Pisan said that the tournament will be played in a knockout format with the winners of the first two games on June 3 clashing in the final.
The FAT secretary-general also revealed that the association has accepted an invitation from Qatar to play a friendly in Doha on Aug 24.
Thailand coach Kiatisak Senamuang praised the FAT’s choice of teams for the King’s Cup.
“It is a good thing. Even though UAE is in the same group a us we don’t mind. Both of us will gain benefit from this cup,” he said.
"For Montenegro, they are European and they are good for the preparation we need for when we play against Australia.”
Meanwhile, after the drawing of AFC World Cup Qualification Third-Round which saw Thailand placed to face Australia, Japan, Saudi Arabia, UAE and Iraq, Kiatisuk gave confident words to the press.
“No matter who the competitors are, this round should be a tough task as we are the lowest ranking team. But I am confident that we also have something because we have been able to reach this stage.
“The important thing is preparation. All of them are the best. This is our first time in more than a decade, but it is our chance. We will do our best,” he said.
“One of our strengths is the home games. With our great supporters, we are ready to surprise all of the top teams, he added.
Thailand had reached the final round of World Cup Asian Qualification in 2001 (World Cup 2002) when Kiatisuk was a player of the team. Now, he is ready to lead his War Elephant up the last hurdle to the 2018 World Cup in Russia.