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QUALITY
ALIKE, BUT IT'S DIFFERENT
QUALITY
ALIKE, BUT IT'S DIFFERENT
1984
Established as "Koryo Industrial"
1985
Manufactured Earbud Tips for Panasonic, Aiwa, Sony and etc
Developed EPDM O-Rings for Water/Sewer Pipes
1989
Manufactured Urethane Earphone Dampers for Sony Korea
1993
Initiated Production of O-Rings for PlumbFast Co., Ltd., Providing Alternatives to Imported O-Rings
1998
Started Self-Production of Molds
1999
Certified to the ISO-9001
2010
Granted with an Utility Model for Earbud Tips
2000
Incorporated as "Koryo Industrial Co., Ltd."
2001
Obtained a Patent Registration for Silicone Rubber Rings (USA, Japan, China)
2017
Completed Construction of the Vietnam Plant (ISO-9001, ISO-14001 Approved)
2019
Company Name Changed to GEM (Goryeo Elastomers) Co.,Ltd.
2020
Implemented Software/Technology-Mediated Resource Management System
Expanded Vietnam Plant with Additional Cleanroom Facilities
Obtained Drinking Water Certifications (Europe and North America)
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