We invest in Copper Mountain Mine, located in British Columbia, Canada, where we engage in corporate management with an emphasis on biodiversity. We continually monitor the quality of water in local rivers, in accordance with quality guidelines issued by the provincial government, and also carry out ongoing surveys into fish populations, in order to gauge the impact of our activities on the ecosystem.
Surveying fish populations
We are carrying out a basic environmental study geared towards conducting EIA* as part of a development project in Zafranal, in southern Peru. At the same time, we are studying and analyzing the potential impact on the environment by the development, and are looking into ways to secure new habitats for species of flora and fauna if there is a risk of any impact on the ecosystem.
River water quality survey
We are continuing to plant mangrove trees in the Gresik area of Indonesia, where PT. Smelting is based. As a result of these activities, which have been going on since 2014 and have been highly acclaimed by the local government, we have planted a total of 33,000 seedlings to date (as of 2017). The mangrove trees planted in the first year are now over three meters tall. With a successful growth rate in excess of 95% across the entire forest, this has made a substantial contribution to biodiversity, even bringing wild animals back to the area in recent years.
Planting mangrove trees
At Cushenberry Mine in California, Mitsubishi Cement Corporation extracts limestone and also manufactures cement at the foot of the mine. Having worked with local experts to develop and plant trees across a mining area covering 25,000 square meters. Around 90% for the trees we have planted to date have grown. We also carry out activities to protect precious wild animals in the area, in conjunction with the local preservation authorities, and have maintained watering stations ever since the area was operational, in an effort to protect bighorn sheep and other wildlife living in the hills behind the mine.
(taken with an automatic camera)
The Une Mine of Ryoko Lime Industry Co., Ltd. extracts limestone from Mount Buko, which is the symbol of the Chichibu area in Saitama Prefecture. In the area in which limestone is extracted, we have planted more than 20,000 trees, the majority being Euptelea and willows native to the area. Despite the harsh environment with a slope facing north and an altitude over 1,000 meters, 35 years have passed since we planted the first trees and they are now more than 5 meters tall. Wild larch, beech and other trees have also found their way in from the adjacent forest and the mining site is slowly but steadily returning to its original state. In recent years, the fresh verdure can be seen from the city in May, allowing local residents to observe the achievements of our greening activities as well.
Greening at Une Mine
|Location and adjacent facility||Site area (thousand m2)||Natural parkland|
|Mitsubishi Materials Corporation|
|· Aomori Plant||124||Shimokita Hanto Quasi National Park|
|· Tohoku Power Service Station||60||Towada-Hachimantai National Park
Moriyoshizan Prefectural Natural Park
|· Yokoze Plant, Ceramics Plant||280||Buko Prefectural Park|
|· Naoshima Smelter & Refinery||1,811||Setonaikai National Park|
|· Higashitani Mine||3,358||Kitakyushu Quasi National Park
Chikuho Prefectural Park
|Mitsubishi Cement Corporation (USA)||4,006||San Bernardino National Forest (USA)|
|Ryoko Lime Industry Co., Ltd.||824||Buko Prefectural Park|
|Mitsubishi Cable Industries, Ltd.||52||Nishiarida Prefectural Natural Park|