It appears that Kameda have offered a big payment to Pungluang after the Thai's promoter, Onesongchai, said they were going to pull out all the stops to win purse bids.
Although the US would seem an odd venue for a fight between a Japanese champion and a Thai challenger it has the premise of a great bout and should be all action with the men having styles that should gel perfectly. In regards to the challenger the US would clearly be a preferred venue now that it's obvious he won't be getting home advantage.
Prior to the bout Kameda will be in a US based training camp which is expected to start in March and will probably see him calling on his contacts from Mexico that helped the youngster early in his career.
For Kameda this will be his second defense of the title whilst Pungluang will be trying to recapture a belt he lost to Paulus Ambunda in February 2013, a man that was later beaten by Kameda.