MITSUBISHI CHEMICAL GROUP
MITSUBISHI CHEMICAL GROUP

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 plants, 5 plants, 2 R&D centers, and 162 domestic and overseas Group company sites

    FY2023 audits performed Total issues identified FY2023 audit plan audit subjects
Safety audits by MCC Safety audits by MCC
  • MCC: 10 plants and 2 R&D centers
  • Group companies: 38 sites
 142

・Confirmation of the content of environment and safety activity plans, implementation status of environment and safety activities, implementation status of roll-out of such activities Companywide, and status of compliance with laws, regulations, and internal standards by the entities audited, based on key measures in the fiscal year ending March 31, 2025.
Environmental audits by MCC Environmental audits by MCC
  • MCC: 4 plants
  • Group companies: 11 sites
 41

・Confirmation of compliance with environmental laws
・Confirmation of the content of environment and safety activity plans and the implementation status of activities

Mitsubishi Chemical Corporation and its Group companies Process safety incidents in Japan

(Number of incidents)

Classification FY2019 FY2020 FY2021 FY2022 FY2023
Tier 1 Incidents 6 3 4 7 5
Serious Tier 1 Incidents* 0 0 0 0 0

Process safety incidents*1 classified in one of the categories of Tier 1*2 process 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 FY2019 FY2020 FY2021 FY2022 FY2023
Medical treatment injuries 90 83 94 92 90
Lost time injuries 46 39 55 36 43
Serious occupational injuries 0 1 2 2 1

Mitsubishi Chemical and its Group companies Lost time incident rate (LTIR)

(Number of incidents per million hours worked)

Classification FY2019 FY2020 FY2021 FY2022 FY2023
Mitsubishi Chemical and its group companies 0.56 0.31 0.62 0.45 0.67
Japan Chemical Industry Association member companies 0.42 0.28 0.41 0.43 0.47
Chemical industry (Source: Ministry of Health, Labour and Welfare) 0.94 0.93 1.07 1.16 1.04

Mitsubishi Chemical and its group companies Lost　Time Injuries by Classification

(Number of incidents)

Classification FY2019 FY2020 FY2021 FY2022 FY2023
Cuts 4 1 5 2 5
Being caught and entangled in equipment 7 8 13 4 9
Falling to same level 10 6 9 7 7
Contact with hazardous substances 3 1 5 3 3
Contact with high/low temperatures 3 6 2 2 2
Reaction to motion/improper motion 3 6 6 12 8
Collisions 2 4 5 2 2
Fall from height 1 3 2 2 2
Struck by flying/falling objects 5 2 3 0 1
Other 8 3 6 4 4

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)

(Thousand metric t-CO2e)

Category FY2019 FY2020 FY2021 FY2022 FY2023
Greenhouse gas emissions 8,700 8,000 10,100 8,600 8,400
  • Note: Figures 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 (including Group companies in Japan).

Mitsubishi Chemical and its Group companies Greenhouse gas emissions (Scope 3)

(Thousand metric t-CO2e)

Category FY2021 FY2022 FY2023
Greenhouse gas emissions 46,000 44,900 42,800

Mitsubishi Chemical and its Group companies Energy consumption

(1,000 metric t)

Category FY2019 FY2020 FY2021 FY2022 FY2023
Energy consumption 33,500 32,600 34,200 29,500 30,400

Mitsubishi Chemical and its Group companies Waste generated and recycling rate

Category FY2019 FY2020 FY2021 FY2022 FY2023
Waste generated (t) 430,000 398,000 403,000 349,000 350,000
Recycling rate (%) 73 77 76 76 76

Mitsubishi Chemical and its Group companies Waste disposed of in landfills and landfill disposal rate

Category FY2019 FY2020 FY2021 FY2022 FY2023
Waste disposed of in landfills (t) 21,000 21,000 21,000 19,000 16,000
Landfill disposal rate (%) 4.9 5.2 5.3 5.4 4.6

Mitsubishi Chemical and its group companies Emissions of Pollutants into the Atmosphere and Water Systems

(t)

Pollutant FY2019 FY2020 FY2021 FY2022 FY2023
NOX 8,000 7,600 7,800 6,700 6,000
SOX 3,000 3,000 3,100 2,300 2,300
Dust 170 180 190 160 140
VOCs*1 6,100 5,800 5,900 4,400 4,000
BOD 200 200 300 200 200
COD 1,770 1,650 1,680 1,460 1,310
Total phosphorus 110 100 90 40 40
Total nitrogen 5,700 4,900 4,800 4,400 3,900
  • *1VOC: 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*1

(t)

Category FY2019 FY2020 FY2021 FY2022 FY2023
PRTR-regulated substance emissions 1,300 1,100 1,060 900 880
  • *1PRTR-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 FY2019 FY2020 FY2021 FY2022 FY2023
Withdrawal City water 3,000 3,100 3,200 3,200 4,600
Surface water 55,000 55,800 54,200 51,300 49,800
Groundwater 26,200 24,700 29,200 28,800 28,500
Industrial water 105,200 99,800 82,700 78,600 76,000
Seawater 673,300 648,500 641,100 642,800 598,900
Discharge Oceans 744,100 718,800 710,100 711,900 667,700
Streams and wetlands 52,700 50,800 51,200 49,700 47,700
Sewage 6,700 9,300 15,800 16,100 15,800

ISO 14001 Certified Mitsubishi Chemical manufacturing sites and R&D centers

Site/Center Certification body Registration date
Ibaraki Plant JCQA*1 March 2001
Toyama Plant LRQA*2 July 2016
Tokai Plant (Aichi) LRQA July 2016
Tokai Plant (Mie) JCQA July 1999
Central Japan Plant (Shiga) JQA*3 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*4 July 2001
Kyushu Plant (Kumamoto) SGS July 2001
R&D centers (Osaka) JCQA November 2019

As of March 31, 2024

  • *1JCQA: Japan Chemical Quality Assurance Ltd.
  • *2LRQA: Lloyd’s Register Quality Assurance Limited
  • *3JQA: Japan Quality Assurance Organization
  • *4SGS: 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 FY2023
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. 2,589 21,378
Global environmental conservation costs CO2emissions reduction, operational improvement, etc. 352 861
Resource-recycling costs Industrial waste reduction, proper waste disposal, resource conservation, energy conservation, etc. 3,965 8,203
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 2,048
Environmental conservation costs in R&D activities R&D for increased productivity 2 5,032
Environmental conservation costs in social contribution activities Construction and upkeep of factory green spaces 52 569
Costs of dealing with environmental damage Cleanup of contaminated soil, etc. 0 28
Other environmental conservation-related costs   0 439
Total 6,959 38,558

Positive economic effects

(Millions of yen)

Category FY2023
Income from recycling 1,039
Energy cost savings 626
Income from resource conservation 258
Total 1,923

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