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CSR Report 2007 (6.7MB)
… Plants Solar power Geothermal energy, etc. New energies Hydrogen, etc. Geothermal power plants Solar energy power …
https://www.mhi.com/sustainability/library/pdf/csrreport2007.pdf
CSR Report 2011 Detailed Version (5.7MB)
… to the Environment In June 2009, we discovered that the hydrogen ion concentrations in water emitted from the …
https://www.mhi.com/sustainability/library/pdf/csrreport2011_all.pdf
CSR Report 2010 (13MB)
… Group. On June 30, 2009, the company dis- covered that the hydrogen-ion concen- tration (pH) of wastewater discharged …
https://www.mhi.com/sustainability/library/pdf/csrreport2010.pdf