Move the screen to the left or right to see the table information
|Item||FY 2017 results||FY 2018 results|
|Implementation rate of biodiversity conservation activities for ecosystems near production facilities||
(10 domestic business locations, and 7 overseas locations)
(10 domestic business locations, and 9 overseas locations)
|Biodiversity in each area, and impact||Yokohama Tire Retread Co., Ltd. (YTRH)
Vicinity of Lake Utonai
|Yokohama Tire Retread (YTRH)|
Vicinity of Lake Utonai
|Habitats being safeguarded or restored||Satoyama (traditional community-managed forest) conservation in Toyooka Village, Nagano Prefecture; Satoyama conservation in Tsuchiya district, Hiratsuka City, Kanagawa Prefecture; conservation of loggerhead turtle egg-laying sites along the Ominato Coast in Ise City, Mie Prefecture, and conservation of breeding grounds of eastern bluebird near the Virginia Plant||Satoyama (traditional community-managed forest) conservation in Toyooka Village, Nagano Prefecture; Satoyama conservation in Tsuchiya district, Hiratsuka City, Kanagawa Prefecture; conservation of Loggerhead Turtle egg-laying sites along the Ominato Coast in Ise City, Mie Prefecture, and conservation of breeding grounds of Eastern bluebird near the Virginia Plant|
Total number of species included in the IUCN Red List of Threatened Species or in Japan’s domestic list of species requiring special conservation efforts
<Categories of threatened species>
・Critically endangered (CR)
Rivers receiving wastewater
CR+EN: One species: stonewort
VU: Two species: Japanese rice fish (each river), loach catfish (Tenryu River)
NT: Three species: ferocious water bug (Sonobe River), Japanese fluvial sculpins (Kuroda River), black-spotted pond frog (Tenryu River)
Within factory grounds and in Satoyama forests
VU: One species: Cephalanthera falcata
NT: Three species: great purple emperor, whisk fern, Japanese fire belly newt
Least concern: One species: grey-headed lapwing
Rivers receiving wastewater|
CR+EN: Two species: stonewort, Japanese eel (Kaname River, Hinokijiri River)
VU: Two species: Japanese rice fish (each river) and goosefoot (Tenryu River)
NT: Five species: Veronica undulata (Kaname River), ferocious water bug (Sonobe River), Japanese fluvial sculpins (Kuroda River), black-spotted pond frog (Tenryu River), Japanese pond turtle (Goten River)
On premises of plants and satoyama
VU: One species: golden orchid
NT: Four species: great purple emperor, whisk fern, Calanthe discolor, Japanese fire belly newt
Least concern: One species: grey-headed lapwing
Beaches near to where wastewater flows out
EN: One species: loggerhead sea turtle (Ominato sea coast)
- Activities are conducted by each office, with the Biodiversity Committee (which the Environmental Protection Promotion Department serves as a secretariat for) implementing company-wide policy discussions and activities.
Why is “Biodiversity” a critical issue to be addressed?
Explanation of the reason and background
Guidelines on Biodiversity
- Recognition as a Management Issue
Since Yokohama Rubber is directly using biological resources and conducting business activities that may affect biodiversity, we recognize the importance and risks towards the grace of nature. Therefore we will address the preservation of biodiversity from a long-term perspective.
- Participation by All Employees
We will raise the awareness of our employees in regard to the grace of nature. All our employees will contribute to the preservation of biodiversity both at work and their local communities.
- Determine the Effect on Biodiversity and its Reduction
We will determine the effect that our business activities may have on biodiversity, and shall thereby try to avoid or minimize such effect.
- Preservation of Biodiversity through the Supply Chain
In order to preserve biodiversity, by understanding that it is important to be considerate as early as the stage of resource extraction, we shall contribute to the preservation of biodiversity at resource mining sites through cooperation with relevant personnel of the supply chain.
- Sustainable Usage of Biological Resources
We will work on any sustainable usage of biological resources by gathering knowledge with regards to biodiversity, and also through technological development, innovation of design and production, or approaches to biodiversity in the value chain.
- Information Sharing and Communication
We will work on the information gathering or social requirement as to preservation of biodiversity; we shall thereby disclose our activities and achievements proactively to facilitate dialogue and tie-ups with our stakeholders, such as customers, local communities, NGOs, and the government.
Vision (attainment goal) / target
YOKOHAMA Forever Forest project achieved its goal to plant 500,000 seedlings in both our domestic and overseas production sites and related department sites in September 2017. Going forward, the project is working toward the new target of planting 1.3 million trees by 2030 through afforestation at production sites and related department sites and the provision of seedlings to communities.
<Overview of Yokohama Rubber’s Activities to Conserve Biological Diversity>
Measures for vision achievement
In water quality surveys, we measure water temperature, electrical conductivity, pH, etc., and in the monitoring of organisms, we conduct bird observation, vegetation surveys, and observation of aquatic organisms and insects.
Move the screen to the left or right to see the table information
|Business location||Location||Water quality*||Aquatic life||Vegetation||Wild birds||Insect||Other|
|In Japan||Mie Plant||Within premises||○||○||○||○||○|
|Outside premises||○||○||○||○||○||Loggerhead turtle|
|Mishima Plant||Outside premises||○||○||○|
|Shinshiro Plant||Within premises||○||○||○|
|Onomichi Plant||Within premises||○||○||○|
|Hiratsuka Factory||Within premises||○||○||○||○||○|
|Ibaraki Plant||Within premises||○||○||○|
|Nagano Plant||Outside premises||○||○||○||○|
|Yokohama Tire Retread Hokkaido Plant||Outside premises||○||○||○||○||○|
|Yokohama Tire Retread Nagoya Plant||Within premises||○||biotope|
|Yokohama Tire Retread Onomichi Plant||Outside premises||○||○||○||○||○|
|Yokohama Mold||Outside premises||○||○||○||○|
|Overseas||YTMT (Thailand)||Within premises||○||○||○|
|YTRC (Thailand)||Within premises||○||○||○|
|CHZY (China)||Within premises||○||○||○|
|CSZY (China)||Within premises||○||○||○|
|YTPI (Philippines)||Within premises||○||○||○|
|Outside premises||○||Watershed conservation|
|YTMV (United States)||Within premises||○||○||Mammals|
|YRPZ (Russia)||Within premises||Growth of pine trees|
|Y-CH (China)||Outside premises||Laojunshan Project|
|YTVI (Vietnam)||Outside premises||○|
- Presence or absence of biodiversity activities
YOKOHAMA Forever Forest Project
In wild bird surveys at the Hiratsuka Factory, 57 species of wild birds have been observed on plant premises up until now. From the third year of tree planting, we began to see brown-headed thrushes that have a penchant for forests. We believe this reflects how the Forever Forest is functioning as it should as a forest for wild birds. In addition, we observed the crowned willow warbler and the great reed warbler that is seen near water, which suggests that the Forever Forest is functioning as a stopover for wild birds as they move throughout their habitat.
Announcement of procurement policy aimed at maintaining natural rubber as a sustainable resource
Communication with communities
The presence of birds including streaked fantail warblers, kingfishers, great reed warblers, bull-headed shrikes, and migratory fish including eels, rhinogobius, and gobies in the Kaname River are indicative that both the river and the nearby sea are healthy. However, investigations of the vegetation showed significant quantities of introduced species such as giant ragweed and bur cucumber, and we decided that our conservation activities should include removal of specific introduced species. Up until last year, our 260 employees have participated in the activities and removed approximately 1.9 tons of introduced species in total.
Additionally, starting in 2015, we began to rent abandoned land in Yadota, near Komagataki in the Tsuchiya district of Hiratsuka, to create a biotope through manual labor, and activities including the regeneration of the abandoned cedar forest around Yato.
As a result, it has become possible to find Cephalanthera falcata, Cephalanthera erecta, Calanthe discolor and Cymbidium goeringii.
These activities to conserve biological diversity and our ongoing surveys of fixed amounts of CO2 absorption associated with the growth of the Forever Forest planted in and around the site in 2007 were recognized with Association for Business Innovation in Harmony with Nature and Community (ABINC) certification as a plant that is considerate of biodiversity in March 2017.
- “Black Team”: Conducted water quality survey on rivers that factories discharge wastewater into (Hinokijiri River and Hotosu River) and aquatic life survey on organisms such as killifish
- “Tall Team”: Measured the number of foreign species removed and native plants and conducted a loggerhead sea turtle egg laying survey at beaches (Ominato sea coast) near to where wastewater flows out
- “Short Team”: Created biotopes in rainwater ponds at plants, conducted water quality survey, biological survey, aquatic life survey, and water quality measurements
These confirmed that the Goten River was home to a huge variety of wildlife, including larvae from damselflies and koyama dragonflies; fish such as the Zacco platypus (pale chub) and the dark chub; reptiles including the Chinese pond turtle; and birds such as kingfishers. However, the river also included large amounts of discarded trash, and so after monitoring, we also carried out some cleaning to do what we could in order to preserve the Goten River in a pristine state.
However, river vegetation was wiped out by river dredging at the end of 2016, and the diversity of the river disappeared. Because of this, in May 2019 our Mishima Plant signed a “River Friendship” consent form with the Numazu Civil Engineering Office and Mishima City, and we started working on the regeneration of vegetation in the Goten River and creating an environment conducive to aquatic life.
At Yotsuya Senmaida, we are creating and maintaining a biotope in unused farmland. Here, we can find freshwater crabs, pond frogs, forest green tree frogs, fire belly newts, and other creatures.
On October 13, we attended the 4th tree planting ceremony for the “Biodiversity Strategy 2020 of Aichi” organized by the Shinshiro-Shitara Ecology Network Council, and planted 600 broadleaf trees (provided by the Shinshiro Plant) with participants so that the planted trees will provide food for various wildlife on the mountain where conifer trees were thinned.
Surveys of aquatic life in the Fujii River found aquatic insects including mayflies, damselflies, and dragonflies; fish such as cyprinids, sleepers, and rhinogobius; and crustaceans such as mitten crabs and lake prawns.
Within the plant premises, we are providing a mosaic of environments to host wildlife, by growing trees to create a Forever Forest and by creating ponds and marshes from groves, grass areas, and rainwater?this has become home to dragonflies, butterflies, crickets and grasshoppers. Within the plant premises, we can also see nest-building by skylarks, shrikes and redstarts staking out their territories, and wintering by bush warblers.
At the 42nd Fujiigawa Evening held on June 9, we introduced activities contributing towards biodiversity in the plant, and distributed 150 seedlings for the Forever Forest.
Also, we applied for Association for Business Innovation in Harmony with Nature and Community (ABINC) certification in 2017 and obtained it in January 2018.
Loach catfish, which is a quasi-endangered species in Nagano Prefecture, and stonewort, which is a category I endangered species were found during surveys into aquatic life at the area with our Nagano Plant located that is near the confluence of the Tenryu River and its tributary, the Oshima River, as well as at the Shinsui Park on the Terasawa River.
Based upon the “Forest Adoption Promotion Project” being promoted by Nagano Prefecture, we concluded with Toyooka village a “forest adoption agreement” to cooperate in maintenance of the village’s forest, and are conducting conservation activities.
When implementing monitoring, the Ambrosia trifida, Goldenrod and Star Cucumber plants that were growing rampantly on the embankments of the Sonobe River were removed; as a result, the area covered by these three non-native species has been reduced.
In 2015, we started surveys of bird life at the plant. Comparing the results of observations within the Sonobe River area has helped us to understand the different environments, further assisting in letting us provide more support for local wildlife.
These activities have been carried out with guidance from the Wild Bird Society of Japan (Ibaraki Office), and from the Omitama Wildlife Association. The activities implemented at the Ibaraki Plant to safeguard biodiversity have been featured on the Omitama Wildlife Association’s website.
In recognition of the above activities, we participated in the poster session of the World Lake Conference (Lake Kasumigaura, Ibaraki, Japan, 2018) held at the Tsukuba International Congress Center in October last year.
Yokohama Tire Retread Co., Ltd. Hokkaido Plant (YTRH)
In order to protect this special place, we have been conducting clean-up events from April to November as a conservation activity for Lake Utonai since 2017, and we conduct foreign plant extermination activities in the summer.
During foreign plant extermination in 2018, the number of samples per person reached a record high for Lake Utonai (7770 in total → 555 per person).
In the future, in addition to employees of Yokohama Tire Retread, we will continue meaningful activities together with family members, affiliated companies and the Wild Bird Society of Japan.
Yokohama Tire Manufacturing (Thailand) Co., Ltd. (YTMT)
Additionally, we carried out activities to create areas of saline soil, with the aim of helping preserve the wildlife within the Khao Yai National Park, a world heritage site.
Y.T. Rubber Co. Ltd. (YTRC)
We have conducted monthly monitoring of aquatic life (fish) and water quality since November 2014. We discovered that anti-flood ponds are connected to the adjacent Tapi River during flooding in the rainy season, and contain the same kinds of fishes. Additionally, we observed that providing different configurations within the anti-flood ponds allows coexistence of different species of fishes. We found that, currently, 18 different species of fish are living in the anti-flood ponds, and 21 different bird species are found there. We realized that this contributed to saving the different types of fishes in the Tapi river as well as their genomes, and we will continue to monitor water quality trends, so that these more closely match the water quality of the river.
Hangzhou Yokohama Tire Co., Ltd. (CHZY)
Additionally, the Qiantang River which flows near the plant is connected to many other waterways, and sewage flowing into these has raised concerns about water quality. Together with Hangzhou Normal University and local government, we are implementing biodiversity conservation activities, using one of these waterways as a model for making improvements to water quality.
Yokohama Tire Philippines, Inc. (YTPI)
In addition, YTPI creates educational materials and holds meetings to raise employee awareness of forest and biodiversity conservation. In order to promote the improvement of the ecosystem in the vicinity, seedlings are provided to the local community, and we hold and participate in tree planting activities outside the factory.
Angeles City, adjacent to YTPI, is considered an “urbanized areas where water use due to intensive consumption is critical” indicated by the Japan International Cooperation Agency (JICA), and the water shortage level is evaluated as “critical” in a report by the environmental NGO Greenpeace.
Angeles City is said to be at risk of having water shortages by 2025. Because of this, at the request of Angeles City’s mayor Edgardo Pamintuan, an activity to plant 1 million trees in Sapang Bato, a water source area, was launched to restore the city's basin. YTPI supports this activity and participates in tree planting activities in this area.
Yokohama Tire Manufacturing Virginia（YTMV）
In 2015, we began setting up nests to protect the breeding of the Eastern bluebird. All of our employees keep a close watch on the growth of the chicks. We conduct periodic surveys of organisms living at the bottom of the Roanoke River as well.
Suzhou Yokohama Tire Co., Ltd (CSZY)
In past activities, we have observed birds such as sparrows and white eagles, plants including Chinese tallow, Hall crabapple, border privet, dandelions, morning glory and daisies, insects like honey bees and butterflies, and earthworms. Among them, we also pick up tree seeds and raise them as seedlings for Forever Forest activities. The third biodiversity survey activity on December 16, 2018 was conducted jointly by inviting students, family members and teachers from the Jing’en Experimental Primary School. Before starting the activity, participants were told the meaning of the living organism survey, and were then divided into groups to observe living organisms that could be found in the Forever Forest area at our plant. In addition to observing living organisms, this survey activity enabled everyone to know the status of growth of the Forever Forest. It was a good opportunity for deepening understanding of the positive impacts that the growth of our Forever Forest has on the community’s ecosystem.
LLC Yokohama R.P.Z.(YRPZ)
Because biodiversity is a concept that people in general are still not familiar with, we will enable employees to deepen their understanding of the importance of biodiversity conservation through participation in monitoring activities and conservation activities, and we will actively communicate information to local communities to provide a better understanding of our efforts.