From railway rolling stock to power generators
Yumino’s technology supports essential infrastructure in our daily lives.
In addition to providing integrated services from precision sheet metal fabrication, thin sheet welding, and
metal fabrication to assembly, we combine advanced development in Japan with a mass production system at our factory in Vietnam (V-HONEST Co., Ltd.).
With proven technological capabilities recognized by multiple major electronics manufacturers,
we continue to build the foundation for Japanese life and industry.
notice
INFORMATION
We can handle a wide range of projects,
from highly complex machining to integrated production.
SERVICE & CAPABILITY
Can fabrication and advanced welding
- Compatible with a wide range of metal materials including iron (SS), stainless steel (SUS), and aluminum.
- High-quality welding with minimal distortion, achieved through the skilled craftsmanship of experienced artisans, including TIG welding, MIG welding, and spot welding.
- We handle fabricated metal products for various structures requiring airtightness and strength, as well as railway vehicles and generator-related equipment.
Machining
(small parts to finishing)
- We have multiple CNC lathes (vertical and horizontal) and CNC machining centers, and we manufacture parts in-house.
- We own a 5-axis gantry-type machining center (MCR-A5C 40X25 ATC100) and can also handle machining after sheet metal fabrication.
Surface treatment and
assembly
- Suitable for annealing, blasting, and painting.
- Surface treatments such as plating utilize a collaborative network.
- We offer a one-stop service, going beyond individual part processing to include everything from parts procurement to assembly and inspection of various components.
Reasons for choosing
WHY CHOOSE YUMINO
With over 80 years in business, Yumino’s strength lies in its accumulated trust and track record.
01
Multiple major manufacturer certified factories
We meet stringent quality standards and have a proven track record of reliable technology and trust, having received direct orders from major electronics manufacturers for many years.
02
A spirit of inquiry and advanced thin-wall sheet metal fabrication and welding technology
Even when faced with a challenging task that others have refused, we rack our brains and thoroughly consider “how we can make it happen.” We specialize in welding and fabricating thin sheets of metal, which require highly advanced skills.
03
One-stop integrated production with a single point of contact
Beyond in-house processing, we leverage our extensive network across various industries. From material procurement to specialized processing and surface treatment, we provide speedy service through a single point of contact.
Global production system
GLOBAL PRODUCTION
Japanese quality × Vietnamese production capacity
A hybrid system combining technological development in Japan and
mass production at a base in Vietnam.
The technical expertise and quality control system cultivated at Yumino Metal Industries in Japan
will be extended to the V-HONEST Co.,Ltd. factory in Vietnam.
Prototyping, complex processing, and technology development are handled in Japan,
while mass production and requests for significant cost reductions are handled at our factory in Vietnam.
We will propose the optimal production and supply system tailored to your needs.
Yumino Metal Industries Co., Ltd.
Head Office Factory
Material processing, metal fabrication, sheet metal work, machining,
heat treatment, painting.
2-14-28 Matsudo-cho, Hitachinaka City, Ibaraki Prefecture
V-HONEST Co.,Ltd.
Metal fabrication, sheet metal work, and machining.
Dai Dong Hoa Son Industrial Park, Bac Ninh Province, Vietnam
work environment
WORK ENVIRONMEN
We will present our work environment and company characteristics in an easy-to-understand way using numbers.
Sales trends for 2025
For the fourth consecutive year
UP！
2022
2023
2024
2025
Founding
1939year
Founding 80 Super anniversary!
Number of employees
40people
Employees: 35 / Temporary employees: 5
Percentage by age group
20s
30s
40s
50s
20s : 55%
30s : 12.5%
40s : 7.5%
50s : 25%
Gender ratio
male
woman
8.5 : 1.5
Average overtime hours
20 Hours/Month
Number of clients
40Company
（As of March 2025）
Parental leave return rate
100%
（As of March 2025）
Yumino Metal Industries is committed to creating an environment where every employee can work with peace of mind. Learn more about
our systems that support growth and a comfortable work environment, as well as employee interviews, here.
inquiry
CONTACT
Please feel free to contact us.