ONEJOON Co., Ltd. is a mechanical engineering company based in Suwon and Hwaseong, South Korea, whose primary market is the production of high temperature furnace systems including the required material handling and process technology for the treatment of cathode and anode material in lithium-ion batteries. ONEJOON has 40 employees at its locations in Korea.

The company was established in the year 2000 as a family-owned company. ONEJOON Korea has supplied over 100 high performance roller hearth kilns and continuous furnaces to customers in the industry of electric and electronic devices & parts, lithium-ion battery materials, advanced ceramics.

Based on the successful supply of furnaces, ONEJOON Korea has provided turn-key solutions of powder process engineering services for battery materials production by optimizing the capacity & performance with furnace & powder process. ONEJOON Korea has extensive references within the Korean and Chinese markets and claims to be technology leader for high-end battery kilns.

Head Office

Story behind the Logo

ONEJOON’s logo embodies the traditional ascending kiln. From the company name of ONEJOON, the meaning of "ONE" are as like "Ace, Top and Best". "JOON" means the "highest mountain". This is the value what we are aiming for, and the ONEJOON logo represents it.

The symbol in front of the logo is inspired from one of Korean traditional ascending kilns.

Meaning Of Logo


Suwon and Hwaseong


Head Office:
174-29, Saneop-ro, Gwonseon-gu, Suwon-si, Gyeonggi-do, Korea

Factory 1:
28, Dongsanjae-gil, Bongdam-eup, Hwaseong-si, Gyeonggi-do, Korea

Factory 2:
899-54, Beodeul-ro, Ujeong-eup, Hwaseong-si, Gyeonggi-do, Korea

Size of the administrative and production areas

Head Office & Engineering House (Suwon)

  • Building Manufacturing: 1,719.42 m²
  • Land: 3,083.50 m²

Factory 1 & R&D Center (Hwaseong)

  • Building Manufacturing: 746.83 m²
  • Land: 1,685.00 m²

Factory 2 (Hwaseong)

  • Building Manufacturing: 2,115.17 m²
  • Land: 3,339.00 m²

Test Center Korea

In our Test Center Korea we offer you numerous opportunities for the development of new products and processes.

More Information

Management Board in Korea

Sung Je LEE President & CEO +82 31 2 97 05 94
Dono Ham Senior Manager +82 10 64 90 74 43
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Company Profile
ONEJOON Germany read more
Company Profile
ONEJOON China read more
Company Profile
ONEJOON USA read more
Heat treatment plants

More than 120 years experience in industrial furnace construction

ONEJOON Co. Ltd. Suwon City, South Korea +82 31 2 97 05 94