01 / Company
About Hangyeol Precision
A precision machining manufacturer serving semiconductor, battery and automotive equipment makers from Korea’s Sihwa–Banwol industrial cluster.
[01] Who we are
The same precision,
from the first part to the thousandth
Hangyeol Precision was founded in 2008 with three CNC lathes in Siheung, Gyeonggi-do. A reputation for never missing a delivery date led to tier-1 supplier status with a Korean semiconductor equipment manufacturer.
Today 96 people operate 48 machining and metrology machines, including 14 five-axis machining centers, across two plants. We take a drawing and deliver a finished, cleaned and documented part, whether it is a vacuum chamber, a battery line jig or an EV housing prototype.
“Hangyeol” means constant in Korean: the thousandth part should measure exactly like the first.
[02] Core Values
What guides every decision
Precision
A dimension that was not measured is not confirmed. Every shipment carries data.
Consistency
Process conditions are documented and repeated, so prototypes and production match.
Speed
Your development schedule is our production schedule. We remove waiting time.
Transparency
If a feature is hard to machine, we say so early and propose alternatives.
[03] Company Profile
At a glance
“Tolerances are not up for negotiation. They are a promise we make to our customers.”
| Company | HANGYEOL PRECISION Co., Ltd. |
|---|---|
| CEO | Taeseok Yoon |
| Founded | April 2008 |
| Employees | 96 |
| Revenue | KRW 31.2 billion (2025), 22% export |
| Certifications | ISO 9001:2015, ISO 14001:2015 (fictional) |
| Plants | Sihwa (HQ, Plant 1) and Banwol (Plant 2), Gyeonggi-do, Korea |
| Languages | Korean, English |
[04] Milestones
History
2026
- 5-axis fleet expanded to 14 machines; new large-envelope CMM
2025
- Designated a Gyeonggi Promising Export SME; exports reach 11 countries
2023
- Plant 2 opens in Banwol Industrial Complex
2020
- ISO 14001 certified; corporate R&D center established
2016
- Registered as a tier-1 supplier to a semiconductor equipment maker; first 5-axis machine
2012
- ISO 9001 certified; first CMM installed
2008
- Founded in Siheung with three CNC lathes
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