Promoted Police Tero said yesterday they are good enough to stay in Thai League 1.
The Dragons unveiled their new players and new jerseys under the theme 'Rise Up' at a press conference.
Among those at the function were coach Rangsan Viwatchaichok, Malaysian defender Dominic Tan and twins Thitathorn and Thitawee Aksornsri, who are both Thailand's U23 players.
"We have made a return to Thai League 1 just one year after we were in Thai League 2," said Police Tero director Pol Maj Gen Rungroj Thakulpunyasiri.
"I believe this will be a good year for our club. Our players have improved and look very determined during training. They are ready for Thai League 1.
"Club president Chakthip Chaijinda has sent us an encouraging message. I believe that with our potential, we can survive in Thai League 1."
The club are in their fourth year under the current name, having previously been BEC Tero.
Police Tero will begin their 2020 campaign with a home match against former champions Buriram United on Feb 16.