AUTOMOTIVE PARTS · SINCE 1994
Precision engineering,
trusted partnership
Since 1994, Wonjin has grown alongside Korea's automotive industry as a specialist in plastic injection molding — supplying core components to Kia with 30+ years of quality.
CORE VALUES
Four principles we stand by
— 01
Precision Quality
Process control under IATF 16949 — defect rates managed at PPM level.
— 02
In-house Expertise
From mold design to mass production, executed with internal capability.
— 03
Delivery Commitment
24/7 response system for routine orders and urgent production.
— 04
Sustainability
Expanded use of recycled resin and low-carbon processes.
PRODUCT LINEUP
Injection-molded plastic parts
From exterior trim to functional modules — core components delivered into Kia's lineup.
WJ-EXT-01
Front Grille Assembly
Large SUV/sedan front grille with two-shot PC/ABS molding.
- WEIGHT
- 1,420g
- MATERIAL
- PC+ABS
WJ-INT-04
Center Fascia Panel
Integrated touch-screen housing with hairline IMD finish.
- WEIGHT
- 680g
- MATERIAL
- PC+ABS
WJ-FN-12
Air Vent Module
Louver and knob assembly — 360° airflow design.
- WEIGHT
- 210g
- MATERIAL
- PP+GF20
WJ-EXT-07
Tailgate Garnish
Large-surface exterior part with high-gloss paint.
- WEIGHT
- 980g
- MATERIAL
- ABS
WJ-INT-09
Door Trim Cover
Soft-touch TPU overmolded interior trim.
- WEIGHT
- 540g
- MATERIAL
- PP+TPU
WJ-FN-18
Battery Housing
EV high-stiffness functional housing.
- WEIGHT
- 1,860g
- MATERIAL
- PA66+GF30
2025 — KEY FIGURES
Wonjin by the numbers
Three decades of accumulated expertise and production capacity.
01
30
yrs
of automotive experience
02
480
+
part numbers in production
03
18
ha
Hwaseong headquarter site
04
99.7
%
first-pass yield (PPM basis)
Trusted by leading partners
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