地球アイコン

About Us

Wrought Copper Products That Support Everyday Life
Materials Manufacturer Committed to Craftsmanship and Social Responsibility

To remain a company that continually earns customer trust by creating products demanded at the forefront of each era.To foster employees who share high values and act with passion, contributing to the local community while realizing personal fulfillment and corporate growth.
To remain a company that continually earns customer trust by creating products demanded at the forefront of each era.To foster employees who share high values and act with passion, contributing to the local community while realizing personal fulfillment and corporate growth.

Message from the President

Make the Earth’s resources shine
From Copper, Beyond Copper
Manufacturing That Circulates Resources

Since our founding in 1898, Kiyomine Metal has dedicated itself to copper. From tableware and musical instruments in the past to advanced materials for automobiles and smartphones today, the copper alloys we produce have always supported everyday life.
Throughout more than 125 years of history—amid changing environments, eras, and technologies—we have remained mindful of what must change and what must never be changed, always with our customers’ satisfaction at heart.

Looking ahead, our thoughts are clear—Kiyomine Metal is not simply a company that manufactures.
We ask ourselves: “Is it enough just to make, consume, and discard?” With this question in mind, we are envisioning the next generation of manufacturing.
Copper, the metal we handle, is created, used, and then returned again. Beyond production alone, we consider how resources can circulate and connect to the future. By applying the lessons of copper to global resources, we aim to become a company that contributes more deeply to society.

Alongside our current manufacturing, we hold aspirations such as “to be involved beyond production” and “to rethink the way consumption works.” Yet this is not something we can accomplish alone.
Only by connecting with those who share our aspiration to “Make the Earth’s resources shine,” and by creating and circulating together, can this vision take shape.

So, who will we work with, and what will we achieve together?

Guided by our founding spirit—“There is so much more we can do.”—we continue to move forward, steadily and with confidence, every day.

President ＆ CEO
Kiyomine Metal Industry Co., Ltd.
Shuntaro Kiyomine

清峰俊太郎
清峰俊太郎

Department Overview

  • Manufacturing Department

    This core department oversees the entire production process, from melting and casting raw materials to precision rolling, annealing, slitting, and plating.
    It is a hands-on role where employees create products from the ground up to truly meet customer needs.

  • Production Engineering Department

    Responsible for improving productivity on the shop floor, improving and developing products, and maintaining existing equipment and introducing new systems.
    This department works closely with production sites to ensure smooth and efficient manufacturing operations.

  • Quality Assurance Department

    This department ensures and oversees product quality.
    We inspect our products to provide customers with safe and reliable solutions, while continuously improving quality across all processes.

  • Production Control Department

    Responsible for production planning, issuing manufacturing instructions to the shop floor, and managing shipments.
    It coordinates with production sites and partner companies, serving as the factory’s central control hub.

  • Management Department

    Responsible for overall company operations, including procurement, accounting, and human resources.
    By connecting departments and employees across the organization, this team plays a vital role in sustaining and supporing the company.

  • Sales Department

    Serves as the customer-facing division, offering products tailored to specific customer needs and managing all sales activities.
    As a manufacturer’s sales team, it collaborates closely with the factory to deliver optimal solutions.

Company Profile

Company Name
Kiyomine Metal Industry Co., Ltd.
Representative
Shuntaro Kiyomine, President & CEO
Founded
May 15, 1898
Incorporated
January 11, 1935
Capital
100 million yen
Employees
123
Business Activities
Manufacturing and sales of nickel silver, phosphor bronze, and special copper alloys (sheet, strip, wire, and rod)

Company Location

  • Head Office & Factory

    Address
    633 Kamihirooka, Tsukuba, Ibaraki, 305-0041 Japan
    Nearest Train Station
    Tsukuba Station (Tsukuba Express Line)
    By Taxi:Approximately 10 minutes from Tsukuba Station
    By Bus: Take the bus bound for Tsuchiura Station West Exit and get off at Kiyomine-mae (immediately in front of the stop)
    Note: Limited bus service available
    Contact
    Phone:+81-29-821-2510
    FAX:+81-29-823-3664

  • Tokyo Office

    Address
    7th Floor, Swallow Tower, 13-5 Kuramae 2-chome, Taito, Tokyo, 111-0051 Japan
    Nearest Subway Stations
    Kuramae Station (Toei Asakusa Line) – 3-minute walk
    Kuramae Station (Toei Oedo Line) – 5-minute walk
    Contact
    Phone:+81-3-5821-5511
    FAX:+81-3-5821-5522