Credentials
Registrations, accreditations & IP
Registrations and accreditations held by JH Engineering (manufacturing) and JH E&S (field services). Certificate scans contain personal data and are therefore not published here; redacted copies are available on request.
Patents & Utility Models filed
21 patents and 5 utility models in total
2004 ~ 2010
13 patents, 3 utility models
2011 ~ 2016
8 patents, 2 utility models
Registrations
Registrations & accreditations held
- JH E&S2023-02-27
Construction Business Registration — Mechanical & Gas Facility Works
Principal field: Gas Facility Construction, Class 1
- No.
- 남양주23-파-01
- Issuer
- Mayor of Namyangju, Gyeonggi-do
- JH E&S2022-01-27
Construction Business Registration — Gas Heating Works
Principal field: Gas Facility Construction, Class 2
- No.
- 남양주22-하-1
- Issuer
- Mayor of Namyangju, Gyeonggi-do
- JH Engineering2010-09-16
Construction Business Registration — Gas Facility Construction, Class 2
Registered constructor under Article 9, Framework Act on the Construction Industry
- No.
- 남양주10-24-148
- Issuer
- Mayor of Namyangju, Gyeonggi-do
- JH E&S2022-02-21
Corporate R&D Department Accreditation
Location: 30 (Bldg C), Yangji-ro 125beon-gil, Onam-eup, Namyangju-si / filed 15 Feb 2022
- No.
- 제2022151066호
- Issuer
- Ministry of Science and ICT · KOITA
- JH E&S2021-10-13
Factory Registration Certificate
30 (Bldg C), Yangji-ro 125beon-gil, Onam-eup, Namyangju-si / Other fabricated metal product manufacturing (25999) / 164㎡ production floor
- No.
- Factory No. 413602021699642
- Issuer
- Korea Industrial Complex Corporation
- JH Engineering2010-08-27
Factory Registration Certificate
827 Chasan-ri, Hwado-eup, Namyangju-si / Other general-purpose machinery manufacturing (29199) / 1,000㎡ site, 132㎡ production floor
- No.
- Registered 26 Aug 2010
- Issuer
- Namyangju City, Gyeonggi-do
- JH E&S2022-01-07
Business Registration Certificate
Manufacturing & services / piping equipment, gas facility repair / commenced 14 Jun 2021
- No.
- 734-05-02329
- Issuer
- Guri District Tax Office
- JH Engineering2022-04-12
Business Registration Certificate
Manufacturing / gas apparatus and related equipment / commenced 7 Sep 2004
- No.
- 204-11-86421
- Issuer
- Namyangju District Tax Office
- JH E&S2019-04-15
Commercial General Liability Insurance
Contractor's liability for gas piping works / KRW 100 million limit per occurrence, bodily injury and property damage
- No.
- FA20198780261000
- Issuer
- Hanwha General Insurance
※ Renewed annually — replace with the current policy
Downloads
Downloads
Catalogues and spec sheets appear in this list automatically once a PDF is uploaded from the admin panel.
Nothing published yet.
News
Notices
- Pinned2026-01-05
The new JH E&S website is now live
The official JH E&S website is now open. Equipment, project records and certifications are all in one place. For quotations and service enquiries, use the contact page or call 010-3323-6376.
- 2026-01-02
2026 fleet expansion and technical staffing completed
Following the expansion of our divisions, additional tapping and stopping equipment has been acquired and our technical team reinforced. In 2026 we plan to broaden the range of clients we serve under service contracts.
Certificate copies are available on request.
Documents containing personal data are sent redacted.