Pakorn saw his shot sail over the bar early in the match before Bordin Phala was twice denied by Ratchaburi defenders, including one by their skipper Philip Roller in the seventh minute.
However, a consultation with the referee on TV revealed that Suarez had been in an off-side position when he took the pass from Pakorn, who was impressive in his role as a playmaker for the Khlong Toei-based club.
Worawut fumbled a Steeven Langil cross from the left and Karaboue was quick to pounce on the mistake by Port's custodian to tap it into the net and kick-start celebrations from the Ratchaburi fans.
However, the match referee turned to the VAR officials as before the ball had sailed on to Langil on the left flank, Karaboue had skidded into Worawut and it was deemed a foul.
Assistant referees: Poonsawat Samransuk Worapong Prasartsri Fourth official: Wiwat Jumpa-on Assistant VAR: Sivakorn Pu-udom Rawut Nakarit Match Commissioner: Ekachai Tanaddernkao Referee Assessor: Preecha Kangram General Coordinator: Jetsada Dujnakee Match rules: