About SEUNG JIN
About SEUNG JIN
2026
Jan
UL Listed (USA)
UL Certification Achieved – FLEXONE 25B Panel Type
2025
Sep
KFI Cert. Approved
KFI Cert. Approved
KFI Cert. Approved
KFI Cert. Approved
KFI Cert. Approved
KFI Cert. Approved
KFI Cert. Approved
Seismic Separation Joint, Welded-U Type, 1.2 MPa, 250A, Maximum Movement ±300 mm
Seismic Separation Joint, Welded-U Type, 1.2 MPa, 50A, 65A, 80A, 100A, 125A, 150A, 200A, Maximum Movement ±200 mm
Seismic Separation Joint, Welded-U Type, 1.2 MPa, 50A, 65A, 80A, 100A, 125A, 150A, 200A, 250A, Maximum Movement ±100 mm
Seismic Separation Joint, Grooved-U Type, 1.2 MPa, 50A, 65A, 80A, 100A, 125A, 150A, 200A, 250A, Maximum Movement ±300 mm
Seismic Separation Joint, Grooved-U Type, 1.2 MPa, 50A, 65A, 80A, 100A, 125A, 150A, 200A, 250A, Maximum Movement ±200 mm
Seismic Separation Joint, Flanged-U Type, 1.2 MPa, 50A, 65A, 80A, 100A, 125A, 150A, 200A, 250A, Maximum Movement ±300 mm
Seismic Separation Joint, Flanged-U Type, 1.2 MPa, 50A, 65A, 80A, 100A, 125A, 150A, 200A, 250A, Maximum Movement ±200 mm
Aug
Comprehensive
EGS Assessment
Renewal of ESG Excellent Company Certification (ESG-3)
Jan
FM Approved
World-Class Seismic Separation Joint, 300 psi, Movement Range 50–600 mm, Sizes 25–350A
2024
Nov
CE(CPR) Approved
Flexone, Flexone-S, Cleanflex, Cleanflex-S, Duceflex Braided Flexible Sprinkler Hoses with End Fittings
Sep
KFI Cert. Approved
Verification of Direct Production of Expansion Piping
First in Korea – Seismic Separation Joint, Flanged-U Type, 2.0 MPa, 300A, Maximum Movement ±400 mm
SME Distribution Center
Aug
Comprehensive EGS Assessment
Renewal of ESG Excellent Company Certification (ESG-3)
Jun
Venture Business Certification Renewal
Korea Venture Business Association
Feb
INNO-BIZ Certification Renewal
Ministry of SMEs and Startups
2023
Dec
Commendation from the Minister of SMEs and Startups
Export Promotion Division
Aug
Comprehensive EGS Assessment
KFI Cert. Approved
Acquired ESG Excellent Company Certification (ESG-4)
Seismic Separation Joint, Grooved-U Type, 1.2 MPa, 50A, 65A, 80A, 100A, 125A, 200A, 250A, 300A, Maximum Movement ±100 mm
Sep
KFI Cert. Approved
Seismic Separation Joint, Flanged-U Type, 1.2 MPa, 50A, 65A, 80A, 100A, 125A, 200A, 250A, 300A, Maximum Movement ±100 mm
Mar
KFI Cert. Approved
Seismic Separation Joint, Welded-U Type, 2.0 MPa, 250A, Maximum Movement ±300 mm
Feb
Specialized Company for Materials, Parts and Equipment
Ministry of Trade, Industry and Energy
2026
Jan
• UL Listed (USA)
UL Certification Achieved – FLEXONE 25B Panel Type
2025
Sep
• KFI Cert. Approved
Seismic Separation Joint, Welded-U Type, 1.2 MPa, 250A, Maximum Movement ±300 mm
• KFI Cert. Approved
Seismic Separation Joint, Welded-U Type, 1.2 MPa, 50A, 65A, 80A, 100A, 125A, 150A, 200A, Maximum Movement ±200 mm
• KFI Cert. Approved
Seismic Separation Joint, Welded-U Type, 1.2 MPa, 50A, 65A, 80A, 100A, 125A, 150A, 200A, 250A, Maximum Movement ±100 mm
• KFI Cert. Approved
Seismic Separation Joint, Grooved-U Type, 1.2 MPa, 50A, 65A, 80A, 100A, 125A, 150A, 200A, 250A, Maximum Movement ±300 mm
• KFI Cert. Approved
Seismic Separation Joint, Grooved-U Type, 1.2 MPa, 50A, 65A, 80A, 100A, 125A, 150A, 200A, 250A, Maximum Movement ±200 mm
• KFI Cert. Approved
Seismic Separation Joint, Flanged-U Type, 1.2 MPa, 50A, 65A, 80A, 100A, 125A, 150A, 200A, 250A, Maximum Movement ±300 mm
• KFI Cert. Approved
Seismic Separation Joint, Flanged-U Type, 1.2 MPa, 50A, 65A, 80A, 100A, 125A, 150A, 200A, 250A, Maximum Movement ±200 mm
Aug
• Comprehensive EGS Assessment
Renewal of ESG Excellent Company Certification (ESG-3)
Jan
• FM Approved
World-Class Seismic Separation Joint, 300 psi, Movement Range 50–600 mm, Sizes 25–350A
2024
Nov
• CE(CPR) Approved
Flexone, Flexone-S, Cleanflex, Cleanflex-S, Duceflex Braided Flexible Sprinkler Hoses with End Fittings
Sep
• KFI Cert. Approved
First in Korea – Seismic Separation Joint, Flanged-U Type, 2.0 MPa, 300A, Maximum Movement ±400 mm
• Verification of Direct Production of Expansion Piping
SME Distribution Center
Aug
• Comprehensive EGS Assessment
Renewal of ESG Excellent Company Certification (ESG-3)
Jun
• Venture Business Certification Renewal
Korea Venture Business Association
Feb
• INNO-BIZ Certification Renewal
Ministry of SMEs and Startups
2023
Dec
• Commendation from the Minister of SMEs and Startups
Export Promotion Division
Aug
• Comprehensive EGS Assessment
Acquired ESG Excellent Company Certification (ESG-4)
• KFI Cert. Approved
Seismic Separation Joint, Grooved-U Type, 1.2 MPa, 50A, 65A, 80A, 100A, 125A, 200A, 250A, 300A, Maximum Movement ±100 mm
Sep
• KFI Cert. Approved
Seismic Separation Joint, Flanged-U Type, 1.2 MPa, 50A, 65A, 80A, 100A, 125A, 200A, 250A, 300A, Maximum Movement ±100 mm
Mar
• KFI Cert. Approved
Seismic Separation Joint, Welded-U Type, 2.0 MPa, 250A, Maximum Movement ±300 mm
Feb
• Specialized Company for Materials, Parts and Equipment
Ministry of Trade, Industry and Energy
9 Cheomdan-ro 181beonan-gil, Danwon-gu, Ansan-si, Gyeonggi-do, Republic of Korea
TEL.031-499-0991 l FAX. 031-499-0993
EMAIL: sales@onlyflexone.com l info@onlyflexone.com
All content on this website is protected under copyright law. Unauthorized reproduction, distribution, or modification is strictly prohibited, and violations may result in legal liability in accordance with applicable copyright laws. Copyright ©2026, SEUNGJIN IND.CO.,LTD