The two men, who were both aged 26-years-old at the time, face charges of conspiracy to murder and possession of a handgun without a permit, as well as a string of other lesser charges, according to the local Phuket News daily.
The two men have previously confessed to the killing of their compatriot, explaining that the attack was in revenge for a business relationship which had turned sour.
The men however deny murder, claiming that they did not intend to kill him, the newspaper reported.
The three men are reported to have been part of a call centre scam operating out of Pattaya.
The 25-year-old apparently fell out with the pair and reported the scam to Pattaya police and then moved to Phuket.
His former business partners tracked him to an apartment building in Koh Kaew and confronted him on the evening of August 1st 2011.
The victim is reported to have returned home at around 8pm and was attacked by the two men who tried to strangle him with a wire, according to local media reports.
The man was then stabbed in the neck and died soon after from his wounds.