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Last name Pengchai (Pengchai , เพ็งไชย , เพ็งชัย ) , in the world, is quite a rare surname. The last name Pengchai is habitual in South-eastern Asia, particularly Thailand, where it is quite a rare surname.
Sopa, Norravit, Weerawut, Yupapong, Yupaporn, Manatchaporn, Sithathai, Apitchaya, Charinkorn, Phongphan, Phongphat, Ratchanee, Latthawat, Jittraporn, Thitipong, Teerapong, Teerayut, Patcharaporn, Thitiwat, Charkrit, Tita, Waet, Pinet, Samreong, Suchat, Apisit, Kammee, Tatiya, Sumalee, Aphiwat, Aphiphu, Tanawan, Fonthip, Wilawan, Siriporn, Pimwarat, and Phatcharaporn