"He was seen carrying fireworks into the pub and lighting them during the countdown," said police spokesman Jongrak Jutanot.
Five others, all owners and managers of the club, have been charged with causing death by negligence and admitting minors.
The Santika club lacked an operating license from the city and signatures of engineers had been forged on construction documents, the Telegraph reported, noting the nightspot had been raided 47 times for operating without a license.
Written by United Press International