Perma Corporation Co.,Ltd. 311, 2nd Floor, Soi Chokchaijongjumroen, Rama 3 Rd., Bangpongpang, Yannawa, Bangkok 10120, Thailand.Tel. +662-6591999Fax. +662-6591933E-mail. [email protected] Work Hours. Monday – Friday | 8.30 A.M.- 6.00 P.M. Follow Us. Facebook Line Youtube