location

LOCATION Domestic and overseas bases

Global communication to support
high-quality manufacturing and integrated production

In order to produce competitive products of high quality, we continue to seek overseas manufacturing bases.
As of 2025, we have three plants at three companies as local subsidiaries in Thailand.
This international division of labor, which began in 1989, has greatly supported our growth.
Our domestic plants are dedicated to high-precision metal processing and technological development,
while our Thailand plants pursues versatile technologies to optimize manufacturing costs and ensure a stable supply capacity.

DOMESTIC BASES Domestic bases

Endo Manufacturing
Co., Ltd.

Endo Manufacturing’s head office is located in Tsubame, Niigata Prefecture, which is known as a center of metal plastic forming processing. From our central base here, we promote a variety of businesses in the forging, Metal Sleeve, golf, medical device, and aircraft fields. In addition to product development, technology development, and research, our head office is also responsible for sales and group-wide administration.

Our domestic plants are mainly engaged in the processing of forgings, especially in fields that require a high level of precision such as the medical and aircraft fields. Our head office plant is also involved in the manufacturing of these products. Inheriting the traditions of Tsubame Sanjo craftsmanship, this base supports the growth and development of our company in pursuing world-class quality.


EPON GOLF Co., Ltd.

Located adjacent to our head office, EPON GOLF Co., Ltd. is involved in the planning, development, and sales of golf clubs. We are committed not only to functionality but also to beauty of form, in pursuit of creating genuine tools that allow users to share an emotional experience with the manufacturer. Backed by the technical skills of Endo Manufacturing, which has supplied many golf club heads to top brands as an OEM, we have established strict quality control and a unique development process. We produce products that are extremely popular with golfers inside and outside Japan.

The company name “EPON” is meant to suggest “epoch-making, or marking a new era” and resonates with Endo Manufacturing’s catchphrase, “Creating a future without limits.” The workshop is located adjacent to the company, allowing for close cooperation among development staff, which in turn allows for an even higher level of manufacturing.

Company profile
Company name EPON GOLF Co., Ltd.
Location 1137 Higashi-Ota, Tsubame-shi, Niigata 959-1289, Japan
TEL 0256-64-5551
FAX 0256‑62‑6118
Founded February 1977
Capital JPY32,000,000
Representative President Taishi Watabe
Number of employees 8
Business description Planning, development, and sales of original golf clubs

Nichia Forging Co., Ltd.

Nichia Forging Co., Ltd. has established an integrated production system covering everything from mold design and fabrication to forging processing, heat treatment, and quality inspections, and provides highly difficult forgings such as stainless steel alloy steel and Stellite alloy steel. We make full use of a 16-ton air hammer, one of the largest in the industry, to produce large forgings for turbine parts, construction machinery parts, railroad parts, and other applications.

The company joined the Endo Manufacturing Group on February 3, 2025. As Endo Manufacturing’s forging base in Japan, it aims to meet domestic demand and expand our product range. Synergistic effects are also expected, such as improving technical skills and developing new manufacturing methods through sharing information between Japan and Thailand.

Company profile
Company name Nichia Forging Co., Ltd.
Location 77 Kitayama, Myogi-machi, Tomioka-shi, Gunma 379-0205, Japan
TEL 0274-73-2021
FAX 0274-73-2425
Founded January 1972
Capital JPY 50,000,000
Representative President Kenji Matsuda
Number of employees 120
Site area 49,000 m2 (building 10,500 m2)
Main facilities
  • Air stamping hammers (3 t, 4 t, 6 t, 8 t, 16 t)
  • Free-forging hammers (1/4 t, 2 t)
  • Forging roll
  • Presses (30 t to 2,500 t)
  • Electric upsetting machines (35 kVA to 200 kVA)
  • High-frequency heating furnaces (150 to 800 kVA)
  • PID-controlled heating furnaces, etc.
Business description General precision mold forging
Main product area(s) Steam turbine and gas turbine compressor blades for thermal, nuclear, and geothermal power generation facilities; construction machinery parts, railroad parts, rock crushing machinery parts, agricultural machinery parts, automobile parts, machine tool parts
Certification ISO 9001

Sevensix Inc.

Optical technology professionals involved in in-house development using advanced optical technology

Sevensix Inc. was established in 2007 as a trading company specializing in the import and export of optical components, and established a new Engineering Department in 2014. It is a group of optical technology professionals involved in in-house development utilizing advanced optical technology, such as laser light sources and 3D measurement systems.

In March 2021, a cooperative structure was established through the acquisition of shares in Sevensix Inc. As the first step in this collaboration, we began automating the inspection process for golf club heads. We developed Spector, an automatic inspection system with high precision and high repeatability using a non-contact laser, for use in highly difficult inspections that would normally require skilled techniques. We have established mass production technology that results in consistent product quality, efficient processes, and excellent reproducibility.
We will continue to work with advanced optical technology to promote the development of high-precision solutions to unresolved issues.

Company profile
Company name Sevensix Inc.
Location 17F, Roppongi Hills Mori Tower,
6-10-1 Roppongi, Minato-ku, Tokyo 106-6117, Japan
TEL 03-6721-1077
FAX 03-6721-1078
Founded April 2007
Capital JPY10,000,000
Representative President Yosuke Hane
Number of employees 45
Business description
  • Laser related
    • Laser light sources, measurement, sensor systems, optical parts and materials, optical peripherals, vacuum parts
  • Optical communication related
    • Optical components, measurement/measuring devices, fiber processing equipment devices, accessories
  • RF related
  • Import/export sales of optoelectronics
  • Research, development, and sales of optical and electronic devices
  • Online sales of preowned optical and RF-related products
Certification ISO9001
KESステップ2

OVERSEAS BASES Overseas bases

ENDO THAI CO., LTD.

Our base for producing world-quality golf clubs through integrated production that supports us both inside and outside Japan

ENDO THAI CO., LTD. is our base for processing golf club head products to meet the diverse needs of various manufacturers.
In cooperation with ENDO FORGING, which manufactures forged golf club heads, we provide integrated services covering everything from post-forging processing work to MC processing (CNC cutting), welding, polishing, plating, finishing, and packaging.

In addition to machining centers, we have a range of equipment installed, including a TIG welding machine, buffing line, Ni/Cr plating line, laser marking equipment, and X-ray inspection equipment, in order to support mass production and ensure quality.

Why choose
ENDO THAI CO., LTD.?

A wide variety of machining centers of various types

Our base for processing golf club head products supplied inside and outside Japan

Our comprehensive processing base capable of integrated production of parts with complex shapes

Laser marking and automatic inspection to help save labor and switch to digital

Advanced quality assurance system using the latest inspection and testing equipment

Company profile
Company name ENDO THAI CO., LTD.
Location 381 Moo 4 Latkrabang Industrial Estate,Chalongkrung Road, Lamplatiew,Latkrabang, Bangkok 10520 Thailand
TEL +66-23-26-0342
FAX +66-27-39-6259
Founded April 9, 1989
Capital 385,000,000Baht
Representative Taishi Watabe
Number of employees 788
Site area 24,948 m2 (building 12,150 m2)
Business description Golf club head manufacturing
Main facilities
  • Press process: Hydraulic press, crank press, roll press, blasting equipment
  • Machining center (MC) machining process: High-precision cutting equipment using various machining centers
  • Welding process: Laser welder, TIG welder, induction heating equipment, cleaning equipment, oven
  • Mold machining process: Machining center, wire cutter, electric discharge machine, grinder, lathe
  • Polishing/finishing process: Buffing machine, endless polishing machine, barrel polishing equipment, spray booth, oven, cleaning equipment
  • Plating process: Automatic Ni/Cr plating line, manual plating line, blasting/polishing machine
  • Quality assurance and inspection equipment: Laser marking equipment, microscope, X-ray inspection equipment, hardness testers (Rockwell, Vickers), non-contact 3D scanner, automatic angle measuring instrument, contracer, pendulum measuring instrument
  • Testing equipment, salt spray tester, head endurance tester
  • Packing/shipping process: Product inspection table, automatic packing line, labeling and final inspection equipment
Main product area(s) Golf club heads

ENDO FORGING (THAILAND) CO., LTD.

Our core base for overseas production supplying forged parts to a diverse range of industrial fields, capable of both mass production and high precision

ENDO FORGING (THAILAND) CO., LTD., our core base for producing forgings, is equipped with both air hammer forging and press forging lines. This manufacturing base specializes in small-to-medium forged parts in the 50 g to 4 kg class for automobiles, two-wheeled vehicles, agricultural machinery, and golf club heads.

The premises also features a mold plant that handles everything from mold design to processing, and makes full use of high-precision machining centers, wire cutters, electric discharge machines, and other equipment to supply high-precision molds with short delivery times. We also have a full lineup of pre- and post-processing equipment for use in processes including cutting, coining, and shot blasting, allowing us to complete the entire forging process in an integrated manner.

We also have a spacious inspection area, and have installed magnetic particle inspection equipment, 3D measuring equipment, and surface roughness and contour measuring devices. We have established a strict quality assurance system that is trusted internationally. This makes ENDO FORGING (THAILAND) an important base for supplying high-precision forged products of high reliability worldwide.

Why choose
ENDO FORGING?

Our core forging base with both air hammer forging and press forging lines

Forgings are handled by a large press line with a maximum capacity of 2,500 tons

Multiple air hammer forging lines for efficient high-volume production

Technology system that allows for everything to be completed in-house, from mold design to processing and prototyping

Can work in many fields including the automobile, two-wheeled vehicle, agricultural machinery, and golf club head fields

ISO-compliant quality inspection system with multiple precision inspection devices installed

Company profile
Company name ENDO FORGING (THAILAND) CO., LTD.
Location 179/2 Moo 7, Gateway Industrial Estate, General Zone,Highway Rd. No.331, Huasomrong, Plangyao, Chachoengsao, 24190, Thailand
TEL +66-38-575-223〜5、534〜6
FAX +66-38-575-221
E-mail contact@endoeft.com
Founded April 22, 1996
Capital 270,000,000 Baht
Representative Taishi Watabe
Number of employees 432
Site area 96,000 m2 (building 34,680 m2)
Business description Manufacturing of forged parts for automobiles, etc., and golf club head forgings
Main facilities
Main facilities
  • Press forging line
  • Air hammer forging line, 1.3 t to 2.0 t
  • Shot blasting equipment
  • Machining center
  • Quality inspection equipment (3D measuring equipment)
  • Mold machining equipment (machining centers, NC lathes, CNC lathes, wire cutters, electric discharge machines, etc.)
Main product area(s) Automobile parts, two-wheeled vehicle parts, agricultural machinery parts, golf iron club heads
Certification IATF 16949
ISO 9001
ISO14001​
ISO 45001

ENDO METAL SLEEVE (THAILAND) CO., LTD.

Supporting global manufacturing with our unique spinning technology

ENDO METAL SLEEVE (THAILAND) CO., LTD., our base for manufacturing Metal Sleeve products, forms and processes high-precision thin seamless sleeves from cup shapes, based on our unique spinning technology. Our system is capable of completing all processes in-house, from press forming from disc materials to spinning, cutting and grinding, cleaning and shot processing, and inspection and packaging, allowing us to meet a wide range of needs, including high-mix production, high-precision parts, and short delivery times.

Thanks to our efficient production lines and thorough quality control, we are ISO 9001 certified and are able to provide a stable supply of high-quality products. We provide products that combine functionality and quality to a wide range of industries, including the automobile, two-wheeled vehicle, and construction machinery fields.

Why choose
ENDO METAL SLEEVE?

Specialized in spinning processes, focusing mainly on thin seamless pipes

Integrated services covering everything from press forming to spinning, lathe turning and grinding, finishing, and inspection

Enhanced quality assurance system
(ISO 9001 certified)

A full range of advanced precision measuring and testing equipment

Company profile
Company name ENDO METAL SLEEVE (THAILAND) CO., LTD.
Location 179 Moo 7, Gateway Industrial Estate, Export Zone, Plangyao District, Chachoengsao, 24190, Thailand
TEL +66-38-575-016
FAX +66-38-575-035
Founded May 1992
Capital 230,000,000Baht
Representative Taishi Watabe
Number of employees 83
Site area 34,700 m2 (building 7,000 m2)
Business description Manufacturing of Metal Sleeve products
Main facilities
  • Forming press
  • High-precision cutting equipment (NC lathe, general-purpose lathe, milling machine, grinding machine)
  • Spinning machine
  • Measuring devices (laser diameter measuring instrument, hardness tester, tensile tester, roughness measuring instrument, etc.)
  • Cleaning and surface treatment equipment (shot blasting equipment, painting equipment, electric oven)
Certification ISO9001​
ISO14001
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Contact us We specialize in highly difficult forging, VA/VE proposals utilizing our extensive facilities, and OEM work

Endo Manufacturing participates in projects as a development partner proposing technologies, from the product development stage. Endo Manufacturing proposes feasible solutions while utilizing our expertise and technologies, such as optimization of manufacturing methods, material conversion proposals, mold fabrication, mass production, cost cutting, and weight reduction.