Japan tousei-sangyou Co. Ltd. is a high-tech enterprise specializing in the sales and technical support services
of
optoelectronic products and new energy products.
We are also an authorized distributor for several well-known companies, including US Conec (USA), SUNCALL (Japan),
HAKUSAN (Japan), SUMITOMO (Japan), and Changxincheng.
Our product offerings cover a wide range of industries, including:
Optical communication: fiber optic cables, connectors, manufacturing equipment, and consumables
New energy vehicles: automotive high- and low-voltage connectors, wires, cables, tapes, harness fastening
components, plastic and rubber parts for vehicles, power cords, fuses, and more
Network cabling solutions
Guided by our corporate spirit of "Integrity, Honesty, Unity, and Progress," and under the philosophy of "Customer
First," we are committed to becoming a trusted business partner for our clients.

COMPANY NAME | Japan tousei-sangyou Co. Ltd. |
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ESTABLISHED DATE | 2019-10-25 |
ADDRESS | 3-chōme-16-5 Kamisawa, Fujimi, Saitama Japan. TEL:+81-4-9215-9229 |
PRESIDENT | Jennifer Pi |
PARENT COMPANY | Luoyang Junke Optronic Technology Co., Ltd. |
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ESTABLISHED DATE | 2007 |
ADDRESS | No. 111A B7, Block B, Luoyang National University Science Park, No. 2 Penglai Road, Luoyang Area
(Jianxi) of China (Henan) Pilot Free Trade Zone, Luoyang City, Henan Province 471000, P. R.
China TEL:+86-0379-65181617 |
PRESIDENT | Jennifer Pi |
BRANCH OFFICE | Suite 1201, 13A, Business Center, 6979 Hongshan, Longhua New District, Shenzhen City, Guangdong
Province, P. R. China TEL:+86-13525440689 |

History of the Group
- 2007Luoyang Junke Optronic Technology Co., Ltd. was founded with a registered capital of 5 million RMB.
- 2007Began sales of Mipox polishing consumables.
- 2007Qualified as an approved supplier for Jonhon Optronic Technology Co.,Ltd.
- 2008Started sales of MPO connectors from OE, Taiwan.
- 2008Began distributing products from US Conec and Hakusan.
- 2010Launched sales of NTT polishing machines.
- 2014Obtained distribution rights for LEONI.
- 2015Began cooperation with Odawara Engineering.
- 2018Started sales of Domaille products.
- 2019Established a Japanese subsidiary, Japan tousei-sangyou Co. Ltd.
- 2021Set up a Shenzhen office for Junke.
- 2021Acquired exclusive agency rights for the SUNCALL brand in Japan.
- 2022Developed and began production of Junke’s own brand of connectors.
- 2022Started sales of SUMITOMO products in Japan.
- 2023Became an authorized distributor for Changxinsheng.
- 2024Became an authorized distributor of optical fibers and connectors from SUMITOMO Electric, Japan.