Appendix

ESG Data - Social

Social - MCNEX

※ For indicators where data for 2022 and 2023 is not available, they are new disclosure metrics for 2024.

Employees

Classification		Unit	2022	2023	2024
Total		Person	476	472	485
	Regular	Person	430	425	459
	Short-term Contract	Person	46	47	26
By gender (Regular)	Male	Person	362	357	387
	Female	Person	68	68	72
	Ratio of Female	%	15.8	16.0	15.7
By age (Regular)	Under 30	Person	65	66	74
	Between 30 – 50	Person	343	337	366
	Above 50	Person	22	22	19
Total Employees in STEM		Person			160
	Female Employees in STEM	Person			5
	Ratio of Female Employees in STEM	%			3.1
Total Employees in Revenue-Generating Departments		Person			406
	Female Employees in Revenue-Generating Departments	Person			61
	Ratio of Female Employees in Revenue-Generating Departments	%			15.0
Local Hires		Person	92	106	195

Employees Diversity (Regular)

Classification		Unit	2022	2023	2024
Executive	Female	Person	-	-	-
	Male	Person	21	25	23
	Ratio of Female Executives	%	0	0	0
Manager	Female	Person	3	3	3
	Male	Person	42	44	44
Non-manager	Female	Person	65	65	69
	Male	Person	299	288	320
Ratio of Female Managers		%	6.7	6.4	6.4
Total Number of Social Minorities		Person	8	9	14
	Number of Employees with Disabilities	Person	7	8	6
	Number of Elderly Employees (55 years and older)	Person			6
	Number of Foreign Employees	Person	1	1	2
	Number of Employees of National Merit	Person	-	-	-
Ratio of Employees with Disabilities		%	1.5	1.7	1.2
Ratio of Elderly Employees (55 years and older)		%			1.2
Ratio of Foreign Employees		%	0.2	0.2	0.6
Ratio of Employees of National Merit		%	-	-	-

Employees Pay Gap (Regular)

Classification		Unit	2022	2023	2024
Gender Pay Gap		%	37.2	35.1	33.5
	Average Salary of Male	KRW	56,036,816	54,919,573	58,690,875
	Average Salary of Female	KRW	35,171,101	35,667,271	39,019,889

Maternity and Parental Leave

Classification		Unit	2022	2023	2024
Maternity Leave	Used Maternity Leave	Person	0	2	0
	Returning After Maternity Leave	Person	0	2	0
	Ratio of Returning After Maternity Leave	%	0	100	0
Number of Employees Who Used Parental Leave		Person	9	13	7
	Male	Person	6	11	6
	Female	Person	3	2	1
Ratio of Employees Returning After Parental Leave		%		55.6	84.6
Number of Employees Returning After Parental Leave		Person	4	5	13
	Male	Person	2	3	10
	Female	Person	2	2	3
Number of Employees Working Over 12 Months As of The Current Year After Returning from Parental Leave in The Previous Year		Person	3	1	3
	Male	Person	2	1	0
	Female	Person	1	0	3

Performance Evaluation

Classification	Unit	2022	2023	2024
Number of Employees with Performance Evaluations	Person	347	362	363
Ratio of Employees Who Performance Evaluations	%	81	85	75

New Hires and Turnover (Regular)

Classification			Unit	2022	2023	2024
New Hires			Person	99	39	91
	Male		Person	92	38	88
	Female		Person	7	1	3
	Under 30		Person	24	18	40
	Between 30 – 50		Person	73	20	51
	Above 50		Person	2	1	0
Total Turnover			Person	97	52	68
		Voluntary Turnover	Person	97	52	68
		Involuntary Turnover	Person	-	-	-
Total Turnover rate			%	22.6	12.2	14.8
		Voluntary Turnover Rate	%	22.6	12.2	14.8
		Involuntary Turnover Rate	%	-	-	-

Talent Management

Classification	Unit	2022	2023	2024
Average Employee Tenure (Regular)	Year	6.1	7.1	7.3
Employees with over 5 Years of Service	Person	208	207	223
Ratio of Employees with over 5 Years of Service	%	44	44	46
Employees with over 12 months of service	Person	82	26	81

Employee Engagement

Classification	Unit	2022	2023	2024
Employee Engagement	Engaged Employees / Survey Respondents			0.8
Employee Engagement Survey Respondents	Person			69
Engaged Employees	Person			86

Welfare Benefits

Classification		Unit	2022	2023	2024
Total Welfare Benefit Costs		1000 KRW	583,280	625,330	695,026
Average Welfare Benefit Costs Per Person		1000 KRW	1,225	1,325	1,433
Employees on Flextime		Person	386	380	405
Total Working Hours (Regular)		Hour	891,820	881,450	872,046
	Annual Working Hours Per Person	Hour	2,074	2,074	1,900
	Average Daily Working Hours Per Person	Hour	8	8	8

Employee Training

Classification		Unit	2022	2023	2024
Job Training 1)	Training Hours	Hour	690	3,199	1,541
	Number of Participants	Person	49	295	211
	Training Hours Per Employee	Hour/Person	14.08	10.84	7.30
	Training Costs	KRW	12,753,000	38,803,000	10,320,000
	Training Costs Per Employee	KRW/Person	260,265	131,536	21,061
	Employee Training Participation Rate	%	10.3	62.5	43.0
Sexual Harassment Prevention Training	Training Hours	Hour	476	469	463
	Number of Participants	Person	476	469	463
	Employee Training Participation Rate	%	100	99.4	95.5
Disability Awareness Training	Training Hours	Hour	476	469	463
	Number of Participants	Person	476	469	463
	Employee Training Participation Rate	%	100	99.4	95.5
Training on Prevention of Harassment of Persons with Disabilities	Training Hours	Hour	476	469	463
	Number of Participants	Person	476	469	463
	Employee Training Participation Rate	%	100	99.4	95.5
Human Rights Training	Training Hours	Hour	472	469	463
	Number of Participants	Person	472	469	463
	Employee Training Participation Rate	%	99,2	99.4	95.5
Information Security Training	Training Hours	Hour	472	469	463
	Number of Participants	Person	472	469	463
	Employee Training Participation Rate	%	99,2	99.4	95.5
ESG / Ethics Training	Training Hours	Hour	472	469	463
	Number of Participants	Person	472	469	463
	Employee Training Participation Rate	%	99,2	99.4	95.5
Safety Training	Safety Training Hours	Hour		13,915	7,139
Safety Training	Number of Participants	Person		435	437

1) Due to a change in the calculation methodology for job training, the historical data for 2022 and 2023 has been revised from what was presented in previous reports.

Human Right

Classification		Unit	2022	2023	2024
Number of Labor-Management Council Meetings		Session	5	5	4
Human Rights-related Reports 2)		Case			3
	Number of Reported Cases of Abuse	Case			-
	Number of Reported Cases of Sexual Harassment	Case			-
	Number of Reported Cases of Workplace Harassment	Case			-
	Number of Reported Cases of Safety Accidents	Case			3
Handling of Human Rights-related Reports		Case			3
	Number of Handled Cases of Abuse	Case			-
	Number of Handled Cases of Sexual Harassment	Case			-
	Number of Handled Cases of Workplace Harassment	Case			-
	Number of Handled Cases of Safety Accidents	Case			3

2) ESG Hotline System Established in 2024

Human Rights Due Diligence

Classification		Unit	2022	2023	2024
Human Rights Due Diligence	Assessed Sites	Site			1
Human Rights Due Diligence	Ratio of Assessed Sites	%			100
Human Rights Due Diligence Survey	Assessed Sites	Site			27
Human Rights Due Diligence Survey	Ratio of Assessed Sites	%			11
Human Rights Issues	Number of Incidents of Child Labor, Forced Labor, and Human Trafficking	Case			-
Human Rights Issues	Number of Supplier Incidents of Child Labor, Forced Labor, and Human Trafficking	Case			-

OSH Management System

Classification	Unit	2022	2023	2024
Number of Employees Covered by the System	Person	476	472	485
Ratio of Employees Covered by the System	%	100	100	100
Number of Non-employee Workers Covered by the System	Person	9	9	9
Ratio of Non-employee Workers Covered by the System	%	100	100	100

Safety and Health

Classification		Unit	2022	2023	2024
Safety	Occupational Accident Rate	%	0.21	-	0.21
	Number of Injuries	Case	1	-	1
	Number of Fatalities	Case	-	-	-
	LTIFR 3)	Cases per million hour	1.12	0	1.14
	Number of Deaths due to Non-occupational Illness	Case	-	-	-
	Number of Deaths due to Non-occupational Illness (Non-employees)	Case	-	-	-
	Number of Non-conformities Identified in Risk Assessments	Case			34
	Number of Improvement Measures from Risk Assessments	Case			34
Health	Number of Employees Receiving Health Counseling	Person	102	84	99
	Aftercare	Person	102	84	99

3) Historical emissions data from the previous year's report has been restated due to the recalculation of total working hours. LTIFR = (Number of Lost Time Injuries) x 1,000,000 / Total Working Hours

Contractor Safety Management

Classification	Unit	2022	2023	2024
Total Hours of Safety Training for On-site Contractors	Hour			16
Total Number of Participants in Safety Training for On-site Contractors	Person			8

Social Contribution

Classification	Unit	2022	2023	2024
Social Contribution - Donations	1000 KRW	300	15,250	22,250

Supply Chain Management

Classification		Unit	2022	2023	2024
Total Suppliers		Supplier			246
Number of Suppliers Covered by the Code of Conduct		Supplier			42
Supplier Code of Conduct Coverage Rate		%			17
Key Suppliers		Supplier			32
Number of Key Suppliers Covered by the Code of Conduct		Supplier			9
Key Suppliers Code of Conduct Coverage Rate		%			28
Total Supplier Spend		Mil. KRW			773,383
	Spend with General Suppliers	Mil. KRW			254,854
	Spend with Key Suppliers	Mil. KRW			518,529
Proportion of Spend with General Suppliers		%			33
Proportion of Spend with Key Suppliers		%			67

Responsible Minerals

Classification		Unit	2022	2023	2024
Number of Conformant Smelters	Tin	Site			57
	Tantalum	Site			32
	Tungsten	Site			33
	Gold	Site			81
	Cobalt	Site			41

Social - MCNEX VINA

Employees

Classification		Unit	2022	2023	2024
Total		Person	5,008	4,130	3,921
	Regular	Person	1,897	2,132	2,016
	Short-term Contract	Person	3,111	1,998	1,905
By gender 4)	Male	Person	421	490	1,264
	Female	Person	1,476	1,642	2,657
	Ratio of Female	%	15.8	16.0	15.7
By age	Under 30	Person			1,424
	Between 30 – 50	Person			2,463
	Above 50	Person			34
Total Employees in STEM		Person			225
	Female Employees in STEM	Person			94
	Ratio of Female Employees in STEM	%			42
Total Employees in Revenue-Generating Departments		Person			3,696
	Female Employees in Revenue-Generating Departments	Person			2,563
	Ratio of Female Employees in Revenue-Generating Departments	%			69

4) For 2022 and 2023: Based on regular employees.

Employees Diversity

Classification		Unit	2022	2023	2024
Executive	Female	Person	-	-	-
	Male	Person	2	2	3
	Ratio of Female Executives	%	-	-	-
Manager 5)	Female	Person	100	85	111
	Male	Person	205	259	465
Non-manager 5)	Female	Person	1,374	1,555	2,546
	Male	Person	216	231	799
Ratio of Female Managers 5)		%	32.6	24.6	19.2
Total Number of Social Minorities		Person	23	23	24
	Number of Employees with Disabilities	Person	-	-	-
	Number of Elderly Employees (55 years and older)	Person			1
	Number of Foreign Employees	Person	23	23	23
	Number of Employees of National Merit	Person	-	-	-
Ratio of Employees with Disabilities		%	-	-	-
Ratio of Elderly Employees (55 years and older)		%			0.03
Ratio of Foreign Employees		%	0.5	0.6	0.5
Ratio of Employees of National Merit		%	-	-	-

5) For 2022 and 2023: Based on regular employees.

Employees Pay Gap

Classification		Unit	2022	2023	2024
Gender Pay Gap		%	8.7	19.5	17.6
	Average Salary of Male	KRW			12,915,000
	Average Salary of Female	KRW			10,641,000

Maternity Leave

Classification		Unit	2022	2023	2024
Maternity Leave	Used Maternity Leave	Person			347
	Returning After Maternity Leave	Person			320
	Ratio of Returning After Maternity Leave	%			92