>> Laboratory Accreditation ISO/IEC 17025 : 2005 (Testing No.0276) (LPN Metallurgical Research Center (Thailand)Co.,Ltd.

>> Laboratory Accreditation ISO/IEC 17025 : 2005 ( Testing No. 0158) (LPN Plate Mill Public Company Limited)

>> ISO 9001:2008 (LPN Metallurgical Research Center (Thailand)Co.,Ltd.)

>> ISO 9001:2008 (LPN Plate Mill Public Company Limited)

>> ISO 14001:2004 (LPN Plate Mill Public Company Limited)

>> OHSAS 18001:2007 (LPN Plate Mill Public Company Limited)