Mitsui Chemicals

Safety and Prevention

Major Accidents and Work-related Occupational Injuries

The Mitsui Chemicals Group positions as KPIs and monitors major accidents, the number of abnormal conditions/accidents as well as the frequency rate of work-related occupational injuries.

Major Accidents and Abnormal Conditions/Accidents

Although the Mitsui Chemicals Group did not suffer a major accident*1 in fiscal 2017, the number of abnormal conditions/accidents*2 was six, compared with a target of five. Abnormal conditions/accidents are those conditions and accidents that, under our company standards, we judged might lead to a major accident. With regard to these abnormal conditions/accidents, we completed investigations into the causes and the horizontal deployment of preventive measures to all manufacturing sites.

*1
Major Accidents:
Accident with a severity level of 18 points or more, as specified by the Japan Petrochemical Industry Association (JPCA) under Center for Chemical Process Safety (CCPS) evaluation procedures.
*2
Abnormal conditions/accidents:
Although under JPCA accident criteria having a severity level of less than 18 points, conditions/accidents that the Company judges should be monitored under Company standards taking into account the relevant laws and regulations.

Number of Major Accidents and Abnormal Conditions/Accidents

Number of Major Accidents and Abnormal Conditions/Accidents

Note:
Including subsidiaries and affiliates within factory premises where the parent company works manager bears the responsibility for Responsible Care implementation.
*
Scope of data compilation for domestic and overseas affiliates: Affiliated companies eligible for Responsible Care support

Work-related Occupational Injuries

Compared with the Japanese overall industry average and the Japanese chemical industry average, the Company maintains a high level in terms of Days Away from Work Cases (DAFWCs) and, in aiming to achieve the world’s highest standards for safety, targets a frequency rate of 0.15 or below with regard to Work-related Significant Occupational Injuries (WSOI)*.
The WSOI frequency rate for the Mitsui Chemicals Group for fiscal 2017 was 0.24, and thus we were unable to achieve the targeted numerical value of the highest global standard for safety of less than 0.15.
Breaking down that value, the WSOI frequency rate for parent company works and other sites worsened to 0.42. Having thoroughly checked the content of the breakdown, we will expand the scope of the data compilation in fiscal 2018.
In contrast, there was a significant improvement in the WSOI frequency rate for domestic and overseas affiliates. In having worked “to eradicate occupational injuries by setting a goal for more thorough adherence to fundamentals at affiliates,” which fell under matters to be implemented in fiscal 2017, it appears that our efforts were effective.
By type of injury, to address the frequent occurrences of occupational injuries caused by falling, we will continue to promote preventive measures based on proactively expanding the Ministry of Health, Labour and Welfare’s “Stop! Fall Injury Prevention Project.”

*
Work-related Significant Occupational Injuries (WSOI) :
Occupational accidents and injuries that are directly related to operations and result in days away from work cases or fatality or, of those resulting in no lost work or only minor injury, occupational accidents in which the cause was serious and there was a risk of death or days away from work.

Comparison of Mitsui Chemicals DAFWCs with All-industry and Chemical Industry DAFWCs

Comparison of Mitsui Chemicals DAFWCs with All-industry and Chemical Industry DAFWCs

*
Frequency rate indicates the frequency of occupational accidents based on the number of individuals killed or injured by occupational accidents per 1 million hours of total working time.
Shows the average DAFWC rates for all industries in Japan and for the Japanese chemical industry. Mitsui Chemicals aggregate data for DAFWC rates up to the second half of fiscal 2012 and work-related significant occupational injuries from the second half of fiscal 2012 onward.
Sources:
*1
Ministry of Health, Labour and Welfare White Paper Fiscal 2017 Survey on Industrial Accidents.
*2
Japan Industrial Safety & Health Association fiscal 2017 safety index.

Work-related Significant Occupational Injury Frequency Rate

Work-related Significant Occupational Injury Frequency Rate

*
Includes contractors operating on site.
Note:
Scope of data compilation for domestic and overseas affiliates: Consolidated subsidiaries and affiliated companies eligible for Responsible Care support.

Number of Occupational Injuries Resulting in Zero or More Lost Work Days by Type

Number of Occupational Injuries Resulting in Zero or More Lost Work Days by Type

*
Includes Mitsui Chemicals operations- and construction-related subcontractors
*
Scope of data compilation for domestic and overseas affiliates: Consolidated subsidiaries and affiliated companies eligible for Responsible Care support.