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    Domestic Worksites

    Human Resources
    Human Resources Unit 2021 2022 2023
    Total number of employees Persons 18,259 18,122 17,985
    Number of executives Persons 86 67 67
    By Gender
    Males Persons 84 66 63
    Females Persons 2 1 4
    Percentage of females % 2.3 1.5 6.0
    By Age
    Under 30 years old Persons 0 0 0
    30-50 years old Persons 2 0 0
    Over 50 years old Persons 84 67 67
    Number of employees excluding executives Persons 18,173 18,055 17,918
    By Gender
    Males Persons 17,126 17,046 16,918
    Females Persons 1,047 1,009 1,000
    Percentage of females % 5.8 5.6 5.6
    By Age
    Under 30 years old Persons 2,921 3,035 3,241
    30-50 years old Persons 7,365 7,353 7,472
    Over 50 years old Persons 7,887 7,667 7,205
    Number of management employees1) Persons 4,030 4,068 4,041
    By Gender
    Males Persons 3,974 3,997 3,970
    Females Persons 56 71 71
    Percentage of females % 1.39 1.75 1.76
    By Age
    Under 30 years old Persons 0 1 2
    30-50 years old Persons 1,088 1,193 1,363
    Over 50 years old Persons 2,942 2,874 2,676
    Number of regular employees (permanent) Persons 17,559 17,107 16,926
    By Gender
    Males Persons 16,561 16,147 15,970
    Females Persons 998 960 956
    Percentage of females % 5.7 5.6 5.65
    Percentage of regular employees (permanent) % 96.2 94.4 94.1
    Number of contingent employees (contractors) Persons 685 1,007 1,052
    By Gender
    Males Persons 635 957 1,004
    Females Persons 50 50 48
    Percentage of females % 7.3 5.0 4.6
    Percentage of contingent employees (contractors) % 3.8 5.6 5.9
    Total new hires Persons 1,192 1,336 1,512
    By Gender
    Males Persons 1,114 1,276 1,467
    Females Persons 78 60 45
    Percentage of females % 6.5 4.5 3.0
    By Age
    Under 30 years old Persons 681 882 974
    30-50 years old Persons 78 103 119
    Over 50 years old Persons 433 351 419
    Total employee turnover Persons 1,070 1,180 962
    Turnover rate % 5.6 6.5 5.3
    Number of voluntary departures Persons 359 568 424
    Voluntary departure rate % 2 3.1 2.3
    Number of involuntary departures Persons 711 612 538
    Retirements at mandatory age Persons 691 588 519
    Layoffs Persons 0 0 0
    Other reasons for departure Persons 20 24 19
    Number of employees subjected to regular performance evaluations 2) Persons 15,819 15,300 15,663
    By Gender
    Males Persons 14,952 14,464 14,795
    Females Persons 867 836 868
    By employment type
    Non fixed-term employees (permanent) Persons 15,663 15,137 15,492
    Fixed-term employees (contract-based) Persons 156 163 171
    Number of employees with disabilities Persons 588 565 580
    Number of employed veterans Persons 711 738 705

    1) Data adjustment for 2021 and 2022 due to changes in internal management criteria

    2) Data adjustment for 2021 and 2022 due to aggregation errors in some metric data

    Work-Life Balance
    Work-Life Balance Unit 2021 2022 2023
    Number of employees using flexible work arrangements Persons 4,935 5,316 8,185
    Number of employees using infertility vacation Persons 85 81 111
    Parental leave
    Total parental leave-takers Persons 106 152 260
    Males Persons 57 96 156
    Females Persons 49 56 104
    Employees returning from parental leave Persons 121 141 249
    Males Persons 46 79 149
    Females Persons 75 62 100
    Training
    Training Unit 2021 2022 2023
    Total training hours Hours 1,332,271 1,769,947 1,808,072
    Average training hours per person Hours/Persons 73 98 100.53
    Total training cost KRW million 26,954 22,938 31,934
    Average training cost per person KRW million/Persons 1.48 1.27 1.78
    Occupational safety training
    Number of employees who completed compulsory occupational safety training 1) Persons - 73,964 82,366
    Information security training
    Total training hours Hours 31,953 24,338 14,228
    Number of employees who completed compulsory information security training Persons 17,589 17,180 17,073
    Non fixed-term employees (permanent) Persons 16,795 16,158 15,980
    Fixed-term employees (contract-based) Persons 794 1,022 1,093

    1) Duplicate calculation of completers based on mandatory training completion criteria

    Retirement Pension Plans
    Retirement Pension Plans Unit 2021 2022 2023
    Defined Benefit (DB) Retirement Pension
    Current value of defined benefit liabilities KRW million 1,330,938 1,193,500 1,259,340
    Fair value of plan assets KRW million 1,543,469 1,475,606 1,557,782
    Recognition of net asset amount under defined benefit plans KRW million 212,531 282,106 298,442
    Labor-Management Relations
    Labor-Management relations Unit 2021 2022 2023
    Percentage of employees under collective bargaining agreements % 100 100 100
    Number of strikes causing work stoppages Count 0 0 0
    Safety
    Safety Unit 2021 2022 2023
    LTIR Persons/200,000 hours 0.10 0.19 0.07
    Employee LTIR Persons/200,000 hours 0.10 0.11 0.03
    Contractor LTIR Persons/200,000 hours 0.10 0.25 0.10
    LTIFR Persons/1 million hours 0.51 0.93 0.35
    Employee LTIFR Persons/1 million hours 0.52 0.56 0.17
    Contractor LTIFR Persons/1 million hours 0.51 1.26 0.50
    TRIR 1) Persons/200,000 hours - 0.35 0.34
    Employee TRIR Persons/200,000 hours - 0.27 0.35
    Contractor TRIR Persons/200,000 hours - 0.41 0.32
    TRIFR 1) Persons/1 million hours - 1.73 1.67
    Employee TRIFR Persons/1 million hours - 1.37 1.76
    Contractor TRIFR Persons/1 million hours - 2.06 1.60
    Accident rate % 0.06 0.13 0.07
    Employee accident rate % 0.04 0.08 0.02
    Contractor accident rate % 0.09 0.19 0.13
    Fatality rate ‱ 0.29 0.30 0
    Employee fatality rate ‱ 0 0 0
    Contractor fatality rate ‱ 0.60 0.63 0
    Employees
    Number of employee LTIs Persons 19 20 6
    Number of employee TRIs 1) Persons - 49 62
    Number of employee fatalities Persons 0 0 0
    Number of employees injured in accidents Persons 7 14 4
    Number of employee near-miss accidents Cases 5,149 6,391 5,987
    Contractors
    Number of Contractor LTIs Persons 20 50 20
    Number of Contractor TRIs 1) Persons - 82 64
    Number of Contractor fatalities Persons 1 1 0
    Number of Contractor employees injured in accidents Persons 15 30 16
    Number of Contractor near-miss accidents Cases 362 289 1,909
    Safety and Health Management System (ISO 45001/OHSAS 18001/KOSHA-MS) Certification
    Target worksites for certification Count 2 2 2
    Worksites with certification Count 2 2 2
    Certification rate % 100 100 100
    Quality Management System (ISO 9001 or IATF 16949) Certification
    Target worksites for certification Count 2 2 2
    Worksites with certification Count 2 2 2
    Certification rate % 100 100 100

    1) By identifying and addressing even minor incidents, preventive metrics have been introduced and managed to prevent major accidents (since 2022).

    CSR Activity Achievements
    CSR Activity Achievements Unit 2021 2022 2023
    Employee volunteering
    Hours volunteered Hours 296,729 346,855 402,945
    Number of volunteers Persons 12,024 13,096 13,589
    Volunteer hours per person Hours/Persons 16 19 21.8
    Employee volunteering participation rate % 67 73 73.6
    CSR expenses KRW million 49,115 54,257 52,171
    Donations 1) KRW million 38,891 47,970 47,129
    Investment in local communities KRW million 9,323 5,306 4,788
    Other KRW million 901 982 254

    1) CSR expenses in 2021, excluding expenses related to the GEM matching fund, has been revised from KRW 49.45 billion to KRW 49.11 billion

    Supply Chain Management
    Supply Chain Management Unit 2021 2022 2023
    Supplier Relationship Management (SRM) assessments
    Total number of suppliers Count 1,469 1,408 1,380
    Number of assessed suppliers Count 1,159 1,182 1,132
    Percentage of assessed suppliers % 78.9 83.9 82.02

    Domestic and International Subsidiaries

    Human Resources (Consolidated)
    Human Resources1) Unit 2021 2022 2023
    Total number of employees Persons 22,976 23,181 24,340
    Number of executives Persons 92 76 84
    By Gender
    Males Persons 90 75 80
    Females Persons 2 1 4
    Percentage of females % 2.2 1.3 4.8
    By Age
    Under 30 years old Persons 0 0 0
    30-50 years old Persons 2 0 6
    Over 50 years old Persons 90 76 78
    Number of employees excluding executives Persons 22,884 23,105 24,256
    By Gender
    Males Persons 21,444 21,692 22,735
    Females Persons 1,440 1,413 1,521
    Percentage of females % 6.29 6.12 6.27
    By Age
    Under 30 years old Persons 4,496 4,618 4,764
    30-50 years old Persons 10,295 10,581 11,854
    Over 50 years old Persons 8,093 7,906 7,638
    Number of management employees Persons 4,388 4,472 4,640
    By Gender
    Males Persons 4,296 4,357 4,507
    Females Persons 92 115 133
    Percentage of females % 2.10 2.57 2.87
    By Age
    Under 30 years old Persons 19 13 8
    30-50 years old Persons 1,383 1,541 1,849
    Over 50 years old Persons 2,986 2,918 2,783
    Number of regular employees (permanent) Persons 21,914 21,793 22,869
    By Gender
    Males Persons 20,573 20,484 21,448
    Females Persons 1,341 1,309 1,421
    Percentage of females % 6.12 6.01 6.21
    Percentage of regular employees (permanent) % 95.38 94.01 93.96
    Number of contingent employees (contractors) Persons 1,047 1,380 1,464
    By Gender
    Males Persons 947 1,276 1,360
    Females Persons 100 105 104
    Percentage of females % 9.6 7.6 7.1
    Percentage of contingent employees (contractors) % 4.6 6.0 6.0
    Total new hires Persons 1,502 1,663 1,807
    By Gender
    Males Persons 1,382 1,554 1,729
    Females Persons 120 109 78
    Percentage of females % 7.99 6.55 4.32
    By Age
    Under 30 years old Persons 883 1,146 1,139
    30-50 years old Persons 154 144 215
    Over 50 years old Persons 465 373 453
    Total employee turnover Persons 1,334 1,424 1,287
    Turnover rate 1) % 5.46 6.17 5.53
    Number of voluntary departures Persons 609 794 715
    Voluntary departure rate % 2.49 3.44 3.07
    Number of involuntary departures Persons 725 630 572
    Retirements at mandatory age Persons 699 598 537
    Layoffs Persons 2 4 11
    Other reasons for departure Persons 24 28 24

    1) Data adjustments for 2021 and 2022 are due to changes in internal management criteria.

    Safety (Consolidated)
    Safety Unit 2021 2022 2023
    LTIR Persons/200,000 hours 0.08 0.14 0.06
    Employee LTIR Persons/200,000 hours 0.08 0.10 0.03
    Contractor LTIR Persons/200,000 hours 0.08 0.19 0.08
    LTIFR Persons/1 million hours 0.41 0.72 0.28
    Employee LTIFR Persons/1 million hours 0.4 0.48 0.14
    Contractor LTIFR Persons/1 million hours 0.42 0.94 0.39
    TRIR 1) Persons/200,000 hours - 0.27 0.26
    Employee TRIR Persons/200,000 hours - 0.23 0.28
    Contractor TRIR Persons/200,000 hours - 0.31 0.24
    TRIFR 1) Persons/1 million hours - 1.35 1.29
    Employee TRIFR Persons/1 million hours - 1.14 1.38
    Contractor TRIFR Persons/1 million hours - 1.53 1.22
    Accident rate % 0.05 0.10 0
    Employee accident rate % 0.03 0.06 0.02
    Contractor accident rate % 0.07 0.14 0.09
    Fatality rate ‱ 0.22 0.23 0
    Employee fatality rate ‱ 0 0 0
    Contractor fatality rate ‱ 0.44 0.46 0
    Employees
    Number of employee LTIs Persons 19 22 7
    Number of employee TRIs 1) Persons - 53 69
    Number of employee fatalities Persons 0 0 0
    Number of employees injured in accidents Persons 7 14 5
    Contractors
    Number of Contractor LTIs Persons 22 50 23
    Number of Contractor TRIs 1) Persons 2 82 71
    Number of Contractor fatalities Persons 1 1 0
    Number of Contractor employees injured in accidents Persons 16 30 19
    Safety and Health Management System (ISO 45001/OHSAS 18001/KOSHA-MS) Certification
    Target worksites for certification Count 5 5 7
    Worksites with certification Count 4 5 7
    Certification rate % 80 100 100
    Quality Management System (ISO 9001 or IATF 16949) Certification
    Target worksites for certification Count 5 5 7
    Worksites with certification Count 5 5 7
    Certification rate % 100 100 100

    1) By identifying and addressing even minor incidents, preventive metrics have been introduced and managed to prevent major accidents (since 2022).