Mishima Plant (SP)

Business activities

Production of tires for passenger cars

Total site area

112,000 m2

Number of employees

994 (December 2023)

Location

8-1 Minami-Futsuka-machi, Mishima City, Shizuoka 411-0832, JAPAN

Contact for consultation and complaints

Mishima Plant Operation Division
Tel: +81-55-975-0800
Fax: +81-55-976-4322

Message from the General Manager

Toshinari Matsumoto

The Mishima Plant is located in Mishima City in the North Izu area of Izu Peninsula UNESCO Global Geopark in eastern Shizuoka Prefecture. Mt. Fuji, a World Heritage site, can be seen to the north from the plant, and the area is blessed with magnificent scenery and bountiful blessings.The plant mainly manufactures tires for passenger cars and light trucks. We are also the only company in the Yokohama Rubber Group that manufactures racing tires for motorsports.

The plant is surrounded by clear water that is part of the natural abundance of Mt. Fuji and the Izu Geopark, and thanks to the tree planting of the Yokohama Forever Forest Project that the Yokohama Group has been engaged in since 2007, it has been possible to see fireflies in the early summer in the tree planting areas in front of the plant in recent years. Meanwhile, residential areas have been developed in the area surrounding the plant as a result of the convenience of the proximity to the Mishima-Futsukamachi Station on the Izuhakone Railway, which means that in addition to control and management of exhaust, drainage, and sound, response to sensory issues such as odors is required, and these are being steadily addressed.

While Yokohama Rubber is aiming to contribute as a member of the global community, the plant is aiming to contribute as a member of the local community.

We are currently promoting cleanup activities around the factory and Rakujuen, one of the Izu Geoparks, as well as environmental conservation activities and observation of the biodiversity of the Goten River, which runs along the west side of the factory. I would like to cultivate the blessings of nature.

In the future as well, we will work hard to build trusting relationships with all stakeholders in an aim to be a plant that is loved by the region.

Organizational Governance

Corporate Governance and Compliance

The Mishima Plant has also developed its activities in line with Yokohama Rubber's important task of becoming "a company that contributes to the earth, earning the unwavering trust of society. In addition, as a priority issue of reducing environmental risks and contributing to the local community while strengthening the environmental management system, we are deepening communication with stakeholders, preventing environmental pollution and sensory pollution, regularly reviewing past environmental troubles and near misses, and continuously promoting environmental improvement through proactive management.

Corruption prevention

In working to give employees a thorough understanding of our compliance policies as such relate to the prevention of quality fraud, education in compliance issues has been conducted for the entire workforce.

Human Rights

Education on respect for human rights

We distributed “compliance cards” to all employees so as to enlighten and educate them about human rights.
In addition, we conducted compliance education related to human rights to ensure understanding and thoroughness.
We offer employment irrespective of gender, age or disability.

Promotion of employment of people with disabilities and workforce diversity

Currently, we have 15 employees with disabilities.
As of December 2023, of a total of 685 employees at the plant, 29 are women, and 41 are elderly individuals (persons aged 60 or over).

Labor Practices

Occupational safety and health

Recognizing that securing the safety and health of our employees and employees of partner companies are the foundations of corporate activities, the plant acquired OSHMS (Occupational Safety and Health Management System) certification in November 2010 as a means to realize a safe, healthy and comfortable workplace. We promote safety and health activities by identifying risks through risk assessment activities and reducing risks through countermeasures and improvements, based on 3S activities and KY before work with the participation of all employees.

Employee diversity

In 2023, Zero employees took nursing care leave and 12 employees took parental leave.

Work-life balance

The second and fourth Fridays of even month are designated as “Happy Family Life Days,” and employees are encouraged not to work overtime on these days.

Human resources cultivation and training in the workplace

In order to improve the knowledge and skills necessary for employees, we provide rank-based training based on years of experience and position. A plan is made so that the target person can take the course at the appropriate timing, and the content is not just a passive lecture, but is tailored to the target person so that they can think on their own and step up. We conducted education and training for a total of 73 people, including 55 people in group training and 18 people in Mishima Factory's own role training.
Additionally, we assign a trainer to each new employee and provide full support until they are able to work independently. Furthermore, we follow up on a daily basis not only on the technical side, but also on a system that helps resolve concerns and anxieties.

The Environment

Environmental management

Mishima Plant Environmental Policy

We operate under the ISO14001 environmental management system and have declared an environmental policy based on the management policy of “valuing fairness to society and harmony with the environment.”

  1. Under leadership of top management, Mishima Plant will globally initiate environmentally-conscious measures in all of its activities, and will put this into practice across its entire organization
  2. Mishima Plant will deepen communication with its stakeholders and will strive to make contributions to local communities and to society as a whole by promoting collaboration to working with the value chain.
  3. Mishima Plant will strengthen its environmental management system and will aim to achieve zero environmental risk by continually striving to help improve the environment by using approaches to mitigate its impact with chemical substance management, prevent environmental pollution, and reduce sensory nuisances.
  4. Mishima Plant will comply with all related laws, regulations, and agreements as well as endeavor to continually implement activities that help improve the environment.
  5. Mishima Plant will promote decarbonization measures, such as energysaving activities and the introduction of renewable energy, and strive to conserve and recycle resources in order to realize a carbon-neutral and circular economy.
  6. Mishima Plant will strive to conserve biological diversity and use biological resources sustainably in its business activities.
  7. Mishima Plant will promote harmony with local communities as part of its commitment to work with and become a company that is trusted by local communities.
  8. Mishima Plantl provide education and awareness to all people working at the factory so that they understand and act on this policy.
  9. Mishima Plant shall publish this policy.

Jan 1, 2024
Toshinari Matsumoto,
General Manager,
Mishima Plant, Yokohama Rubber Co., Ltd.

In order to reduce the burden on the environment, we focus on reducing greenhouse gas emissions, reducing industrial waste, managing chemical substances, and reducing water usage, and are working to improve production processes and eliminate energy waste. We are working on this. As for other initiatives, we have established voluntary control values to comply with laws and regulations and are operating within these voluntary control values.
Among our efforts to contribute to the environment in the local community, the YOKOHAMA Forever Forest project, which is a company-wide activity, involves planting 29,646 trees (as of December 2023). We support the creation of forests.

Kakegawa City seawall “Creating a Forest of Hope”

Tree planting event in February 2023

Weeding work in October 2023

As part of our biodiversity conservation efforts, we are conducting team activities in the upstream, midstream, and downstream areas of the Goten River, which is located on the west side of the factory, to measure water quality and observe biological species, including fish such as dragonflies, koyama dragonflies, koikawa dragonflies, koikawa dragonflies, and catfish. , reptiles such as soft-shelled turtles, lacewing turtles, and red-eared sliders, as well as kingfishers, the symbol of Mishima City, which are rare to find nesting within the factory grounds, and kestrels of the peregrine falcon family, and a variety of other creatures have been confirmed to be living there. . We are working to remove alien species. On the other hand, there is a lot of garbage being dumped into the river, so we carry out river cleaning after monitoring in order to contribute in any small way to keeping the Goten River beautiful. In May 2019, the Shizuoka Prefecture Numazu Civil Engineering Office, Mishima City, and Mishima Factory signed a "River Friendship" agreement to regenerate vegetation in the Goten River and create an environment conducive for aquatic life. I am doing it. In the 10th year since we started our activities in 2013, for the first time, we have seen the first blue-spotted buttercups reach the bottom downstream of the factory drainage, and beautiful flowers are blooming in the water.

Creatures seen during activities

Endangered II Psilotum nudum

Ranunculus nipponicus var. japonicus

Kingfisher catching a small fish

A soft-shelled turtle and a red-eared slider turtle at the final drain

Silurus asotus

Elaphe climacophora in YOKOHAMA forever forest

Swallow chick in welfare hall

Red-breasted bulbul chick in building entrance/exit

Black cicadas crowding around trees

Kestrels mating in a carbon tank

Environmental data

Reductions in greenhouse gas emissions

Greenhouse gas emissions
  • The base year is deemed as 1990 except for HFC, PFC and SF6, where the base year is 1995 as per the Kyoto Protocol.
  • Method of calculation of greenhouse gases (GHG): this is in compliance with the “Calculation and Reporting Manual for Greenhouse Gas Emissions” issued by the Ministry of the Environment and the Ministry of Economy, Trade and Industry.
    Note that GHG emissions associated with purchased electric power in FY2009 were calculated using the Table of Emission Coefficients by Power Company (Ministry of the Environment).

Effective use of resources / Reduction of waste

Waste output
Water usage

The plant derives 90% of its total water usage from underground water. The remainder is from city waterworks.

Measures for discharge into water, air and soil

Data related to water contamination

The water used at the plant is discharged into the Goten River after being treated in the plant’s treatment facilities.

Move the screen to the left or right to see the table information

Item Regulatory values Voluntary standard values FY2023 results
Average Maximum Minimum
pH ※5.8~8.6 6.2~8.2 7.6 7.7 7.4
BOD concentration (mg/l) 15 4以下 1.7 10.9 0.5
COD concentration (mg/l) ★120 5以下 2.0 5.6 1.2
SS concentration (mg/l) 20 8以下 1.1 3.0 1.0
Oil concentration (mg/l) 2 1以下 1.0 1.0 1.0
Air pollutants (NOx, SOx)

Move the screen to the left or right to see the table information

Substance NOx SOx
Amount of emission (t/year) 18
Facility Substance Regulatory values Voluntary standard values FY2023 results
Average Maximum Minimum
Mishima Plant
Cogeneration
NOx*1(ppm)
Soot and dust (g/m3N)
100
0.05
80
0.01
53
0.005
64
0.005
38
0.005
Mishima Plant Boiler NOx*2(ppm)
Soot and dust (g/m3N)
130
0.1
65
0.02
29
0.005
33
0.005
25
0.005

Reporting on chemical substance management status (Pollutant Release and Transfer Register (PRTR) Law compliance)

The Mishima Plant verifies whether secondary materials and auxiliary materials contain chemical substances subject to Safety Data Sheet (SDS) requirements, and in the case of substances where the amounts handled exceed the thresholds specified by the PRTR Law, annual reports are submitted to the national (or prefectural) authorities and safety impact assessment is performed.
Regarding the handling of substances pursuant to the PRTR Law, please refer to the Safety Evaluation Table of Domestic Production Bases.

Fair Operating Practices

Relationship with business partners

On May 29th and June 2nd, 2023, the first supplier briefing session was held online, jointly sponsored by the Raw Materials Procurement Department and the Materials Procurement Department.

While many people said that they found the event informative and educational, due to the large number of participants, the main focus was on explanations from the organizers. In order to deepen the understanding of participants, we will be working to make the meeting more meaningful for both parties by accepting questions and answers in advance.

Consumer Issues

Communication with customers

To customers who tour the plant, we introduce our acquisition of the Automotive Industry Quality Management System Standard ISO/TS 16949.
Furthermore, in response to inquiries received from customers to whom we have delivered products, we make reports to them based on our quick investigation of the relevant matters.

Community Involvement and Development

Responses to comments and complaints received

We hold local resident meetings twice a year (spring and fall). We offer factory tours and explanations of our environmental initiatives for people who live near the factory and environmental monitors. Following measures to prevent the spread of the new coronavirus infection, the event was held on a small scale starting in 2022, and in 2023, 6 people participated. At the Mishima Factory, the Environmental Management Secretariat acts as a point of contact for local communication. We ask for the cooperation of 28 households (as of December 2023) from among those living in the four towns surrounding the factory as environmental monitors, and visit once a month. In fiscal 2023, we conducted visits and sent direct mail, making 358 visits (of which 82 were dialogues). Much of the content was related to noise and odors. Regarding efforts related to sensory pollution, we are promoting soundproofing to prevent noise, and to prevent odors, we operate three deodorizing devices that spray water 24 hours a day during operation. By making improvements while incorporating explanations and opinions on environmental issues, etc., we achieved zero external complaints in fiscal 2023.

Relationship with local societies

Plant tours and workshops

In fiscal 2023, we accepted 60 factory tours, with a total of 538 people (+449 people compared to the previous year) visiting the Mishima Factory.
Since April 2020, the number of tours has dropped to zero due to measures to prevent the spread of the new coronavirus, but from June 2022 onwards, we will resume small-scale factory tours, and in May 2023 we will move to Category 5. Since then, we have resumed accepting 12 people per session.

Plant Tour Information

Due to production line expansion work to increase motorsport tire production capacity, we will not be accepting factory tours for the time being.