Company Data (Environment and Safety)
Mitsubishi Chemical Corporation
Safety Data
Mitsubishi Chemical and its Group companies Audits of environment and safety activities
Sites audited: 9 sites, 5 plants, 2 R&D centers, and 162 domestic and overseas Group company sites
| FY2024 audits performed | Total issues identified | FY2024 audit subjects | |
|---|---|---|---|
| Safety audits by MCC |
|
294 |
・Confirmation of the content of environment and safety activity plans as well as implementation status of environment and safety activities of the entities audited, based on key measures in the fiscal year ended March 31, 2025 |
| Environmental audits by MCC |
|
23 |
・Confirmation of compliance with environmental laws |
Mitsubishi Chemical Corporation and its Group companies Process safety incidents in Japan
(Number of incidents)
| Classification | FY2020 | FY2021 | FY2022 | FY2023 | FY2024 |
|---|---|---|---|---|---|
| Tier 1 Incidents | 3 | 4 | 7 | 5 | 9 |
| Serious Tier 1 Incidents | 0 | 0 | 0 | 0 | 0 |
Process safety incidents*1 classified in one of the categories of Tier 1*2process safety incidents as defined in the Process Safety Metrics Guide for Leading and Lagging Indicators by the Center for Chemical Process Safety
- *1Includes fires not due to process substances, and equipment damage without discharges and leaks
- *2Incidents with a severity level of 18 points or higher are defined as Serious Tier 1 Incidents, all others are defined as Tier 1 Incidents.
Mitsubishi Chemical and its Group companies Occupational injuries in Japan
(Number of incidents)
| Classification | FY2020 | FY2021 | FY2022 | FY2023 | FY2024 |
|---|---|---|---|---|---|
| Medical treatment injuries | 83 | 94 | 92 | 90 | 84 |
| Lost time injuries | 39 | 55 | 36 | 43 | 30 |
| Serious occupational injuries | 1 | 2 | 2 | 1 | 0 |
Mitsubishi Chemical and its Group companies Lost time injury frequency rate
(Number of lost time injuries per 1 million total working hours)
| Classification | FY2020 | FY2021 | FY2022 | FY2023 | FY2024 |
|---|---|---|---|---|---|
| Mitsubishi Chemical and its Group companies | 0.31 | 0.62 | 0.45 | 0.67 | 0.46 |
| Japan Chemical Industry Association member companies | 0.28 | 0.41 | 0.43 | 0.47 | 0.47 |
| Chemical industry (Source: Ministry of Health, Labour and Welfare) | 0.93 | 1.07 | 1.16 | 1.04 | 1.23 |
Mitsubishi Chemical and its Group companies Lost time injuries by classification
(Number of incidents)
| Classification | FY2020 | FY2021 | FY2022 | FY2023 | FY2024 |
|---|---|---|---|---|---|
| Cuts | 1 | 5 | 2 | 5 | 3 |
| Being caught and entangled in equipment | 8 | 13 | 4 | 9 | 5 |
| Falling to same level | 6 | 9 | 7 | 7 | 4 |
| Contact with hazardous substances | 1 | 5 | 3 | 3 | 4 |
| Contact with high/low temperatures | 6 | 2 | 2 | 2 | 1 |
| Reaction to motion/improper motion | 6 | 6 | 12 | 8 | 5 |
| Collisions | 4 | 5 | 2 | 2 | 2 |
| Fall from height | 3 | 2 | 2 | 2 | 0 |
| Struck by flying/falling objects | 2 | 3 | 0 | 1 | 4 |
| Others | 3 | 6 | 4 | 4 | 2 |
Management of chemicals
Mitsubishi Chemical and its Group companies in Japan establish guidelines to appropriately manage chemicals that pose a high risk of abuse, mainly due to theft or loss.
The necessary training on handling chemical substances appropriately is provided in accordance with the Industrial Safety and Health Act and other relevant laws and regulations. We also perform working environment measurements, provide specialized health checkups, and take other steps to make sure there are no issues with the work environment.
In fiscal 2023, we established guidelines on chemical risk assessment (hazards) to ensure that risk assessments of chemicals are performed properly, in accordance with the Industrial Safety and Health Act. Training is provided to those in charge of risk assessments to enable them to evaluate risks quantitatively and consider and implement measures to prevent exposure, depending on the risk.
Employee participation in preventing occupational injuries
To prevent occupational injuries and process safety incidents, Mitsubishi Chemical and its Group companies strive to create work environments that enhance psychological safety and encourage employees to raise each other's awareness. We perform risk assessments. The people who actually perform the work participate in various ways to prevent recurrence of safety process incidents and occupational injuries, mainly through meetings in which preventive measures are considered. We strive to reflect their opinions in the workplace. Mitsubishi Chemical and its Group companies in Japan also hold regular committee meetings on safety and health, and other meetings. Employees and employers participate in these meetings and share and discuss information on occupational safety and health, in accordance with the Industrial Safety and Health Act.
Environmental Data
Mitsubishi Chemical and its Group companies Greenhouse gas emissions (Scope 1 and Scope 2)
(1,000 metric t)
| Category | FY2020 | FY2021*3 | FY2022 | FY2023*4 | FY2024 |
|---|---|---|---|---|---|
| Greenhouse gas emissions | 8,000 | 10,100 | 8,600 | 8,200 | 7,600 |
- *3Figures for MCC and its Group companies in Japan up to fiscal 2020. The boundaries changed in fiscal 2021 and figures from this point onward are for MCC and its Group companies both in Japan and overseas.
- *4The figures for Scope 1 of fiscal 2023 have been retroactively corrected following the identification of miscalculations in certain reported values.
Mitsubishi Chemical and its Group companies Greenhouse gas emissions (Scope 3)
(Thousand metric t-CO2e)
| Category | FY2021 | FY2022 | FY2023 | FY2024 |
|---|---|---|---|---|
| Greenhouse gas emissions | 46,000 | 44,900 | 42,800 | 33,680 |
Mitsubishi Chemical and its Group companies Energy consumption
(1,000 metric t)）
| Category | FY2020 | FY2021 | FY2022 | FY2023 | FY2024 |
|---|---|---|---|---|---|
| Energy consumption | 32,600 | 34,200 | 29,500 | 30,400 | 27,400 |
Mitsubishi Chemical and its Group companies Waste generated and recycling rate
| Category | FY2020 | FY2021 | FY2022 | FY2023 | FY2024 |
|---|---|---|---|---|---|
| Waste generated (t) | 398,000 | 403,000 | 349,000 | 350,000 | 331,000 |
| Recycling rate (%) | 77 | 76 | 76 | 76 | 73 |
Mitsubishi Chemical and its Group companies Waste disposed of in landfills and landfill disposal rate
| Category | FY2020 | FY2021 | FY2022 | FY2023 | FY2024 |
|---|---|---|---|---|---|
| Waste disposed of in landfills (t) | 21,000 | 21,000 | 19,000 | 16,000 | 9,000 |
| Landfill disposal rate (%) | 5.2 | 5.3 | 5.4 | 4.6 | 2.8 |
Mitsubishi Chemical and its Group companies Emissions of pollutants into the atmosphere and water systems
(t)
| Pollutant | FY2020 | FY2021 | FY2022 | FY2023 | FY2024 |
|---|---|---|---|---|---|
| NOX | 7,600 | 7,800 | 6,700 | 6,000 | 5,400 |
| SOX | 3,000 | 3,100 | 2,300 | 2,300 | 1,600 |
| Dust | 180 | 190 | 160 | 140 | 160 |
| VOC*5 | 5,800 | 5,900 | 4,400 | 4,000 | 4,200 |
| BOD | 200 | 300 | 200 | 200 | 100 |
| COD | 1,650 | 1,680 | 1,460 | 1,310 | 1,100 |
| Total phosphorus | 100 | 90 | 40 | 40 | 40 |
| Total nitrogen | 4,900 | 4,800 | 4,400 | 3,900 | 3,400 |
- *5VOC: Substances subject to aggregation in Japan are substances regulated by the Law concerning Pollutant Release and Transfer Register (PRTR Law), VOCs subject to the PRTR survey by the Japan Chemical Industry Association, and ethylene, propylene, and ethanol. Overseas, figures include VOCs specified in the laws and regulations of each country, in addition to those listed above.
Mitsubishi Chemical and its Group companies PRTR-regulated substance emissions
(t)
| Category | FY2020 | FY2021 | FY2022 | FY2023 | FY2024 |
|---|---|---|---|---|---|
| PRTR-regulated substance emissions*6 | 1,100 | 1,060 | 900 | 880 | 1,100 |
- *6PRTR-regulated substance: The substances specified in the laws and regulations of each country
Mitsubishi Chemical and its Group companies Water withdrawal and discharge volumes
(km3)
| Category | FY2020 | FY2021 | FY2022 | FY2023 | FY2024 | |
|---|---|---|---|---|---|---|
| Withdrawal | City water | 3,100 | 3,200 | 3,200 | 4,600 | 4,500 |
| Surface water | 55,800 | 54,200 | 51,300 | 49,800 | 46,800 | |
| Groundwater | 24,700 | 29,200 | 28,800 | 28,500 | 28,900 | |
| Industrial water | 99,800 | 82,700 | 78,600 | 76,000 | 71,900 | |
| Seawater | 648,500 | 641,100 | 642,800 | 598,900 | 447,000 | |
| Discharge | Oceans | 718,800 | 710,100 | 711,900 | 667,700 | 517,300 |
| Streams and wetlands | 50,800 | 51,200 | 49,700 | 47,700 | 46,000 | |
| Sewage | 9,300 | 15,800 | 16,100 | 15,800 | 13,400 | |
ISO 14001 Certified Mitsubishi Chemical manufacturing sites and R&D centers
| Site/Center | Certification body | Registration date |
|---|---|---|
| Ibaraki Plant | JCQA*7 | March 2001 |
| Toyama Plant | LRQA*8 | July 2016 |
| Tokai Plant (Aichi) | LRQA | July 2016 |
| Tokai Plant (Mie) | JCQA | July 1999 |
| Central Japan Plant (Shiga) | JQA*9 | December 1999 |
| Okayama Plant | JCQA | March 2000 |
| Hiroshima Plant | LRQA | March 2016 |
| Kagawa Plant | LRQA | December 2000 |
| Kyushu Plant (Fukuoka) | JQA | July 2000 |
| Onahama Plant | JCQA | March 2003 |
| Kanto Plant (Tsukuba) | JCQA | February 2000 |
| Kanto Plant (Tsurumi) | LRQA | October 2016 |
| Kanto Plant (Hiratsuka) | JQA | March 2000 |
| Central Japan Plant (Ogaki) | SGS*10 | July 2001 |
| Kyushu Plant (Kumamoto) | SGS | July 2001 |
As of March 31, 2025
- *7JCQA: Japan Chemical Quality Assurance Ltd.
- *8LRQA: Lloyd’s Register Quality Assurance Limited
- *9JQA: Japan Quality Assurance Organization
- *10SGS: SGS Japan Inc.
Environmental risk assessment
Mitsubishi Chemical and its Group companies perform environmental risk assessments using an environmental management system. Sites that have obtained ISO 14001 certification confirm assessment results annually and perform reassessments as necessary.
Mitsubishi Chemical Environmental Accounting
Mitsubishi Chemical uses environmental accounting, based on the Ministry of the Environment’s guidelines, to better understand the costs and effects of its environmental burden reduction and conservation efforts.
Environmental conservation costs
(Millions of yen)
| Classification | Main initiatives | FY2024 | ||
|---|---|---|---|---|
| Investment | Expenses | |||
| Costs within business areas | Pollution prevention costs | Air pollution prevention, dust countermeasure reinforcement, dust collection system replacement, water pollution prevention, activated sludge consolidation, wastewater management reinforcement, response to deterioration of wastewater facilities and pipes, etc. | 1,547 | 23,106 |
| Global environmental conservation costs | CO2 emissions reduction, operational improvement, etc. | 294 | 964 | |
| Resource-recycling costs | Industrial waste reduction, proper waste disposal, resource conservation, energy conservation, etc. | 2,560 | 8,886 | |
| Upstream/downstream costs | Waste reclamation, green purchasing, etc. | 0 | 0 | |
| Environmental conservation costs in management activities | Operation of units to address environmental conservation, ISO 14001 compliance and renewal, national exams, environmental education, etc. | 0 | 1,763 | |
| Environmental conservation costs in R&D activities | R&D for increased productivity | 1 | 4,563 | |
| Environmental conservation costs in social contribution activities | Construction and upkeep of factory green spaces | 0 | 543 | |
| Costs of dealing with environmental damage | Cleanup of contaminated soil, etc. | 0 | 51 | |
| Other environmental conservation-related costs | 0 | 421 | ||
| Total | 4,402 | 40,296 | ||
Positive economic effects
(Millions of yen)
| Category | FY2024 |
|---|---|
| Income from recycling | 1,002 |
| Energy cost savings | 856 |
| Income from resource conservation | 554 |
| Total | 2,412 |
