Jokwang ILI
About Us

We are committed to becoming a specialist offering the world's best safety valves.
Company History
2026  04 Pertamina Vendor Approval
 04 Chandra Asri (TPPI) Vendor Approval
 03 CEO Appointed (Nam Eul-jin)
 02 NTPC Vendor Approval
2025  09 IKPT Vendor Approval
 09 SABIC Vendor Approval
 08 MA'ADEN Vendor Approval
 05 OQGN (OQ Gas Network) Vendor Approval
 05 IRPC Vendor Approval
 01 JGC Vendor Approval
2024  07 Qualified Supplier for Korea's Top 5 Power Plants
 07 PDO (Oman) Vendor Approval
 04 CTCI Vendor Approval
 06 PDO (Oman) Vendor Approval
2023  10 CEO Appointed (Hong Ki-heung)
 08 Plant 2 Established (Expansion)
 08 Qatar Energy Vendor Approval
 04 TR-CU Approval (Russia)
 03 Co-CEOs Appointed (Kim Woo-dong, Kim Cheol-han)
 03 KHNP Qualified Supplier (Auxiliary Eq. Class A)
 03 KHNP Qualified Supplier (Spare Parts Class A)
2022  12 KEPIC-MN Certification (Korea Electric Assoc.)
 11 LR Type Approval (Cryogenic Ball/Butterfly Valve)
 10 BV & ClassNK Type Approval (Cryogenic PRV)
 09 ABS Type Approval (Cryogenic PRV)
 07 Gas Appliance (Ball Valve) Mfg. License Acquired
 07 MOU for POSRV Localization (KHNP, KIMM, ENESGY, PNU)
 03 CE/PED Certification for Changeover Valve (Cat. III, Mod. H)
2021  12 Prime Minister's Citation for Gas Safety Management
 09 TR-CU 032 & 010 Cert. for Changeover Valve
 06 CEO Appointed (Kim Woo-dong)
 05 KR & LR Cryogenic Type Approval, ABS PDA Cert.
 01 CRN Registered in 9 Canadian Provinces
2020  12 C-SEL (China) Cert. for Safety Valves
 09 MOTIE Minister's Commendation for Machinery Industry
 07 Acquired Daeyoo Co., Ltd.
 03 1st in Korea to Supply 18"x24", 20"x24" Safety Valves to Shin-Kori Nuclear #5,6
 02 Renewed Maint. Qualified Supplier for 5 Major Power Plants
2019  11 CEO Appointed (Yang Sung-ho)
 09 PETRONAS Vendor Renewal (2019-2022)
 01 CE/PED Safety Valve Cert. (Cat. IV, Mod. B+D)
 01 GS Caltex (CL.300) Supplier Qualified
2018  04 ASME Sec. I "V" Stamp (Pilot Type)
2017  12 CE Mark / PED Certification
 11 RS (Russia) Type Approval
 08 TR-CU Certification
 03 "Outstanding Entrepreneur" Commendation (Yangsan City)
2016  02 HQ & Factory Relocated to Sanmak Industrial Complex
2015  04 ASME Sec. I "V" Stamp for Power Boilers (Conventional)
 01 C-SEL (China) Cert. for Safety Valves
2014  06 ASME Sec. I Safety Valve Capacity Cert. (NBBI)
 06 Selected for ATC R&D Project (MOTIE)
2013  03 ASME Sec. VIII "UV" Stamp (Conventional, Bellows, Pilot)
2012  03 OHSAS 18001:2007 Certification
2011  12 ISO 14001:2004 Certification
 04 ASME Sec. VIII "UV" Stamp (JSV-FF100)
 04 Selected as BS DIAMOND GROUP (Busan Bank)
 02 Venture Company Re-certified
2010  10 Safety Valve Capacity Cert. (NBBI)
2009  12 Designated as Promising Export SME
 02 Re-certified as R&D Venture Enterprise
2008  11 Re-certified as INNO-BIZ SME
 07 High-Performance Valve R&D Agreement (Dong-A Univ.)
 06 Industry-Academia Lab Support Project (PNU)
2007  12 Acquired Assets in Jangan Industrial Complex
 06 LNG Carrier Control Valve R&D Agreement
2006  11 Patent Acquired: PRV using Pilot Valve
 10 Commendation for Electric Power Tech R&D (MOCIE)
 05 Developed Main Steam Safety Valve (MSSV) for Nuclear
2004  07 Grand Prize at "2004 Small Business Awards"
 06 Type Approval Acquired (DNV, BV, LR)
 04 KEPIC Certification (Korea Electric Assoc.)
 03 ISO 9001:2000 Certification (KSA)
 02 Safety Valve Capacity Cert. (National Board)
2003  12 Launched Nuclear MSSV Localization Project
 10 Chairman's Award at "2003 Venture Business Awards"
 06 "Quality Management Excellence Award" (Busan City)
2002  12 Agreement for Nuclear MSSV Localization (KEPRI)
 05 High-Temp/Diff. Pressure Control Valve R&D Agreement
 05 KEPCO Eq. Repairer Safety (Q) & Reliability (R) Cert.
2001  12 Acquired Exclusive Patent Rights (Valves & Control Devices)
 12 ISO 9001 Certification (KSA)
 06 Established Qingdao Jokwang Special Valve (China)
 01 Listed on KOSDAQ
2000  10 Relocated to Noksan Industrial Complex
 04 Registered as Securities Issuer (FSS)
 03 EM Cert. Acquired (Bellows Type Safety Relief Valves)
 02 Registered as Protective Device Manufacturer (KOSHA)
 02 Corporate R&D Center Established
1999  12 Company Name Changed to Jokwang ILI Co., Ltd.
 07 Grand Prize at "3rd Safety Equipment Contest" (KOSHA)
1998  12 ISO 9001 Certification (TUV)
 05 Excellence Award at "2nd Protective Devices Contest"
1997  05 Designated as Promising Advanced Tech Enterprise
 02 Designated as Vision 21 Leading Enterprise
1996  12 Outstanding SME Award (Tech Category)
 11 Developed Bellows Type Safety Relief Valves
1994  04 KEPCO Thermal Power Eq. Mfg. Approval
 04 Incorporated as Jokwang Industry Co., Ltd.
1993  02 KEPCO Nuclear Power Eq. Mfg. Approval
1992  12 Technical Partnership with VENN Co., Ltd. (Japan)
 11 LPG Appliance Mfg. License Acquired
 11 Safety Valve Inspection Passed (KOSHA)
 01 Relocated to Busan Machinery Cooperative Complex
1988  10 Approved Plant for K.R Classification
1987  03 Korean Industrial Standards (KS) Mark Approval
1986  12 High-Pressure Gas Specific Eq. Mfg. License Acquired
 12 Steam Trap Tech Guidance Completed
 02 Shipbuilding Business Registered
1985  07 Registered as K.S.A Member
1982  07 Completed Testing for Gas Safety Valves
 01 Installed Dedicated 16kgf/cm©÷ Test Boiler
1981  11 Relocated to Sasang Industrial Complex
1978  04 Launched Cast Iron Double PRV
1977  11 Type Approval for High-Lift Safety Valve (Steam)
 06 Heat-Using Appliance Mfg. License Acquired
1975  02 Registered Utility Model for Safety Valve Spring Seat
1968  11 Founded Jokwang Industry (Founder: Lim Jong-in)
Jokwang ILI