Sustainability

ESG Data Section

Environmental

Preventing Global Warming

Item	Scope	Category	FY2017	FY2018	FY2019	FY2020	FY2021	Unit
Energy-origin CO₂	All NGK Group manufacturing sites	-	84.1	86.8	87.3	75.6	61.5	10⁴ metric tons
GHG emissions (Scope 1: Energy-origin CO₂）	NGK Group	-	32.0	32.3	30.9	26.4	30.9	10⁴ metric tons of CO₂
GHG emissions (Scope 2: Energy-origin CO₂)	NGK Group	-	52.1	54.5	56.4	49.2	32.5	10⁴ metric tons of CO₂
GHG emissions (Scope 3) (FY2017-FY2020: Non-consolidated, FY2021: Consolidated)	NGK	Total	87.7	104.7	97.6	89.3	344.9	10⁴ metric tons of CO₂
		Purchased goods and services (including resale items)	76.2	86.3	84.2	77.0	178.8	10⁴ metric tons of CO₂
		Capital goods (capital investment)	8.4	15.2	9.9	9.0	13.4	10⁴ metric tons of CO₂
		Energy	1.6	1.8	1.6	1.5	8.6	10⁴ metric tons of CO₂
		Transport (upstream)	1.1	0.8	1.4	1.3	18.8	10⁴ metric tons of CO₂
		Waste	0.1	0.3	0.2	0.2	1.2	10⁴ metric tons of CO₂
		Business trips	0.1	0.1	0.1	0.1	0.3	10⁴ metric tons of CO₂
		Employee commutes	0.2	0.2	0.2	0.2	0.9	10⁴ metric tons of CO₂
		Use of sold products	-	-	-	-	122.6	10⁴ metric tons of CO₂
		Disposal of sold products	-	-	-	-	0.4	10⁴ metric tons of CO₂
CO₂ (non-energy origin CO₂)	All NGK Group manufacturing sites	-	0	0	0	0	0	10⁴ metric tons of CO₂
Total GHG other than CO₂	All NGK Group manufacturing sites	Total	-	1	1	0	1	10⁴ metric tons of CO₂
		CH₄	0.0	0.0	0.0	0.0	0.0	10⁴ metric tons of CO₂
		N₂O	0.0	0.0	0.0	0.0	0.0	10⁴ metric tons of CO₂
		HFC	0.4	0.4	0.3	0.3	0.3	10⁴ metric tons of CO₂
		PFC	0.0	0.0	0.0	0.0	0.0	10⁴ metric tons of CO₂
		SF₆	0.0	0.1	0.2	0.0	0.1	10⁴ metric tons of CO₂

Consumption of Each Energy

Item	Scope	FY2017	FY2018	FY2019	FY2020	FY2021	Unit
Electric power	All NGK Group manufacturing sites	0.88	0.93	0.95	0.88	0.98	TWh
Gas (natural gas conversion)	All NGK Group manufacturing sites	140	142	137	116	137	Million Nm³
Oil (light oil conversion)	All NGK Group manufacturing sites	2.55	2.11	1.74	1.65	1.64	Million L

Conservation of Water Resources

Item		Scope	FY2017	FY2018	FY2019	FY2020	FY2021	Unit
Water withdrawal	Tap water/industrial water	All NGK Group manufacturing sites	3.690	3.910	3.710	3.135	3.720	Million m³
	Groundwater		0.630	0.620	0.620	0.640	0.614	Million m³
	Rainwater		0.002	0.002	0.001	0.002	0.002	Million m³
	Total		4.322	4.532	4.331	3.777	4.336	Million m³
Water discharge	Rivers	All NGK Group manufacturing sites	0.782	0.767	0.828	0.734	0.733	Million m³
	Lakes		0.000	0.000	0.000	0.000	0.000	Million m³
	Sea		1.363	1.330	1.618	1.201	1.218	Million m³
	Sewerage		0.378	0.382	0.419	0.376	0.458	Million m³
	Factory complex processing		0.340	0.319	0.241	0.207	0.238	Million m³
	Other		0.003	0.012	0.013	0.017	0.057	Million m³
	Total		2.866	2.810	3.140	2.534	2.704	Million m³
Volume recycled		All NGK Group manufacturing sites	0.090	0.090	0.090	0.066	0.063	Million m³
Recycling rate		All NGK Group manufacturing sites	2.0	2.0	2.0	1.7	1.5	%

Raw Materials

Item	Scope	FY2017	FY2018	FY2019	FY2020	FY2021	Unit
Raw materials	All NGK Group manufacturing sites	19.2	18.0	14.7	13.9	15.8	10⁴ metric tons
Recycled materials	All NGK Group manufacturing sites	0.4	0.4	0.4	0.4	0.4	10⁴ metric tons
PRTR	All NGK Group manufacturing sites	707	694	589	506	447	Metric tons
Water withdrawal	All NGK Group manufacturing sites	4.32	4.53	4.33	3.78	4.34	Million m³

Chemical Management System

Item	Scope	FY2017	FY2018	FY2019	FY2020	FY2021	Unit
VOC	All NGK Group manufacturing sites	145.3	119.7	68.4	82.9	77.0	Metric tons
PRTR-listed substances (emissions into atmosphere)	All NGK Group manufacturing sites	154.2	127.5	76.3	89.4	83.5	Metric tons

Discarded Materials

Item	Scope	FY2017	FY2018	FY2019	FY2020	FY2021	Unit
Discarded materials	All NGK Group manufacturing sites	5.8	5.8	5.4	4.6	5.4	10⁴ metric tons
Basic unit per net sales	All NGK Group manufacturing sites	13.3	12.8	12.5	10.35	10.5	Basic unit per net sales
Reduction rate against BAU	All NGK Group manufacturing sites	22	20	24	24	26	%
Recycled	All NGK Group manufacturing sites	4.4	4.3	4.3	3.7	4.2	10⁴ metric tons
Disposed of externally	All NGK Group manufacturing sites	1.5	1.6	1.1	0.8	1.2	10⁴ metric tons
Water discharge	All NGK Group manufacturing sites	2.865	2.809	3.140	2.534	2.738	Million m³
PRTR-listed substances (discharge into bodies of water)	All NGK Group manufacturing sites	0.4	0.3	0.5	0.3	0.6	Metric tons

Products and Services Contributing to Environmental Protection

Item	Scope	FY2017	FY2018	FY2019	FY2020	FY2021	Unit
Sales growth for products contributing to environmental protection	NGK Group	54	52	59	57	59	%

Environmental Accounting

Item	Scope	FY2017	FY2018	FY2019	FY2020	FY2021	Unit
Capital investment	NGK and Group companies in Japan	6.0	14.8	13.6	26.8	9.4	100 million yen
Expenditures	NGK and Group companies in Japan	29.0	27.9	29.8	35.0	41.4	100 million yen
Economic benefits	NGK and Group companies in Japan	6.3	4.3	5.7	4.5	6.9	100 million yen
Cost-effectiveness	NGK and Group companies in Japan	21.7	15.5	19.2	12.9	16.7	%
CO₂eco-efficiency*	Consolidated	117	115	109	122	187	%
Discarded materials eco-efficiency*	Consolidated	139	144	146	176	172	%

FY2013 = 100%

Environmental Management System

Item	FY2017	FY2018	FY2019	FY2020	FY2021	Unit
NGK	4	4	4	4	4	Number of bases certified
Domestic Group	20	20	22	18	19	Number of bases certified
Overseas Group	18	20	21	21	21	Number of bases certified

New manufacturing sites that have been in operation for less than two years are excluded.

Social

Quality Management System

Item	Scope	FY2017	FY2018	FY2019	FY2020	FY2021	Unit
Percentage of ISO 9001 certified sites	NGK Group	97	97	97	100	100	%

Employees

Item	Scope	Category	FY2017	FY2018	FY2019	FY2020	FY2021	Unit
Number of employees*	NGK	-	4,142	4,119	4,224	4,316	4,382	Persons
Number of employees*	NGK Group	-	18,783	20,115	20,000	19,695	20,099	Persons
Number of employees by gender	NGK	Total	4,136	4,355	4,529	4,650	4,745	Persons
		Male	3,621	3,807	3,951	4,046	4,132	Persons
		Female	515	548	578	604	613	Persons
	NGK Group	Total	19,406	20,578	20,409	20,195	20,656	Persons
		Male	15,013	16,167	16,010	15,920	16,393	Persons
		Female	4,393	4,411	4,399	4,275	4,263	Persons
Number of employees by employment type	NGK	Full-time employee	4,136	4,355	4,529	4,650	4,745	Persons
		Contract employee	398	507	464	287	272	Persons
		Temporary employee	392	389	395	302	372	Persons
Employee composition by region	NGK Group	Japan	38	37	39	37	37	%
		Asia	27	25	23	22	22	%
		Europe	18	21	21	25	25	%
		North and Central America	16	16	15	15	15	%
		Other	1	1	1	1	1	%
Retention rate of new hires after 3 years	NGK	Total	94.6	92.6	93.5	92.8	90.3	%
		Male	94.8	97.6	95.2	92.7	91.0	%
		Female	80.0	83.9	85.1	93.3	87.9	%
Average age	NGK	Total	38.7	38.7	38.8	39.2	40.0	Year
		Male	38.7	38.7	39.0	39.3	40.1	Year
		Female	38.6	38.4	38.6	38.6	39.6	Year
Average length of service	NGK	-	13.7	13.5	13.7	14.3	15.6	Year
Average salary	NGK	-	7,852,010	7,888,094	7,770,318	7,635,830	7,696,997	Yen
Labor union membership rate	NGK	-	94	96	97	98	98	%
Turnover rate (Full-time employees only, excluding retiring employees)	NGK	Total	0.8	1.4	1.5	1.3	1.3	%
		Male	0.7	1.2	1.3	1.2	1.1	%
		Female	1.9	2.9	2.8	1.7	2.0	%
Voluntary resignation rate (Full-time employees only, excluding retiring employees)	NGK	Total	0.8	1.2	1.5	1.2	1.2	%
		Male	0.6	1.0	1.3	1.1	1.0	%
		Female	1.7	2.5	2.6	1.6	2.0	%
Work performance evaluation	NGK	Total	-	66	-	68	-	%
		Male	-	-	-	68	-	%
		Female	-	-	-	69	-	%

Note: Includes employees from outside companies who have been temporarily assigned to the NGK Group, but excludes employees from the NGK Group who have been temporarily assigned to outside companies.

Diversity

Item	Scope	Category	FY2017	FY2018	FY2019	FY2020	FY2021	Unit
Number of new graduate hires	NGK	Total	111	155	143	141	105	Persons
		Male	96	122	115	108	89	Persons
		Female	15	33	28	33	16	Persons
Ratio of female employees among new graduate hires^*1	NGK	Total	22	26	28	34	17	%
		Administrative-related; target 30%	27	42	44	52	33	%
		Engineering-related; target 20%	20	22	24	27	13	%
Number of mid-career hires	NGK	Total	126	117	104	41	55	Persons
		Male	111	102	87	35	51	Persons
		Female	15	15	17	6	4	Persons
Ratio of female employees^*2	NGK	-	12.5	12.6	12.8	13.0	12.9	%
Ratio of female employees^*2	NGK Group	-	22.6	21.4	21.6	21.2	20.6	%
Number of key personnel (employees in managerial positions)	NGK	Total	865	890	900	969	1,028	Persons
		Male	848	870	874	940	993	Persons
		Female	17	20	26	29	35	Persons
		Dept. managers or higher	4	4	5	5	5	Persons
		Ratio of female employees	2.0	2.2	2.9	3.0	3.4	%
	Group companies outside Japan	Ratio of female employees	21.0	16.0	20.2	23.1	23.1	%
Number of female directors	NGK	Total	12	12	13	9	9	Persons
		Female	-	1	1	1	1	Persons
		Ratio	8.3	8.3	7.7	11.1	11.1	%
Number of employees with disabilities	NGK, NGK YU-Service, NGK Ceramic Device	Number of people	57	62	135	145	155	Persons
Number of employees with disabilities	NGK, NGK YU-Service, NGK Ceramic Device	Employment rate	1.90	1.92	2.20	2.35	2.46	%

1 Covers regular-position employees

2 Ratio among all employees

Human Resource Development

Item	Scope	FY2017	FY2018	FY2019	FY2020	FY2021	Unit
Training participant summary (total participants)	NGK	3,889	4,661	4,685	2,527	8,201	Persons
Average annual hours spent for training per full-time employee (hours)		21.7	21.3	21.4	6.0	28.0	Hours
Average annual cost of training per full-time employee		66,000	63,000	53,000	22,000	29,522	Yen

Occupational Safety and Health

Item	Scope	Category	FY2016	FY2017	FY2018	FY2019	FY2020	Unit
Number of work-related fatalities	NGK	-	0	1	0	0	0	Persons
	Manufacturing Group companies in Japan	-	0	0	0	0	0	Persons
	Manufacturing Group companies outside Japan	-	0	0	0	0	0	Persons
Number of work-related accidents	NGK	-	3	12	7	4	3	Cases
	Manufacturing Group companies in Japan	-	7	8	8	11	5	Cases
	Manufacturing Group companies outside Japan	-	28	17	19	10	30	Cases
Severity rate (number of lost workdays per 1,000 hours worked)	NGK Group	-	0.013	0.193	0.012	0.006	0.057	Day/1,000 hours
Lost time injury frequency rate (number of lost time injuries per 1 million hours worked)	NGK Group	-	0.55	0.32	0.34	0.31	0.70	Per a million hours worked
Occupational illness frequency rate	NGK	-	0.11	0.10	0.00	0.00	0.00	Per a million hours worked
Acquisition of occupational safety and health management system certification	NGK*	ISO 45001 and JIS Q 45100	-	100	100	100	100	%
	11 manufacturing Group companies in Japan	ISO 45001 and JIS Q 45100	-	58	100	100	100	%
	15 manufacturing Group companies outside Japan	ISO45001	-	40	73	93	100	%

Nagoya Site, Chita Site, Komaki Site, Ishikawa Plant, Mitake Plant

Health and Productivity Management

Item	Scope	Category	FY2017	FY2018	FY2019	FY2020	FY2021	Unit
Average overtime work per month	NGK	NGK general employees	24.3	25.2	23.7	21.6	23.4	Hours
		NGK including key personnel (managers)	23.4	25.2	23.6	22.0	23.8	Hours
		NGK manufacturing divisions	25.7	27.3	24.4	22.8	24.1	Hours
		NGK non-manufacturing divisions	22.4	24.0	23.2	21.1	23.1	Hours
Percentage of employees taking stress checks	NGK	-	93.4	94.9	95.9	94.1	95.2	%
Percentage with high stress levels	NGK	-	9.7	11.7	10.7	9.9	9.0	%
Number of employees taking position-based mental care education	NGK	-	402	567	614	585	517	Persons
Periodic health exam	NGK	-	100	100	100	100	100	%
Paid leave: Number of days used, utilization rate	NGK	Days used	12.2	12.8	14.1	11.9	13.8	Day
Paid leave: Number of days used, utilization rate	NGK	Utilization rate	68.7	72.5	77.5	67.5	76.5	%

Social Contribution Activities

Item	Scope	FY2017	FY2018	FY2019	FY2020	FY2021	Unit
Social contribution expenditures	NGK Group	3.00	3.02	2.37	2.96	5.33	100 million yen
Number of social contribution programs		10	10	13	10	16	Cases
Number of collaborations with NPOs/NGOs		4	4	4	4	3	Cases

Corporate Governance

Board of Directors

Item	Scope	FY2017	FY2018	FY2019	FY2020	FY2021	Unit
Number of directors	NGK	12	12	13	11	9	Persons
Number of outside directors		3	3	3	3	3	Persons
Number of board of directors meeting held		15	14	14	14	13	Times

Audit & Supervisory Board Members

Item	Scope	FY2017	FY2018	FY2019	FY2020	FY2021	Unit
Number of audit & supervisory board members	NGK	4	4	4	4	4	Persons
Number of outside audit & supervisory board		2	2	2	2	2	Persons
Number of audit & supervisory board meeting held		14	14	14	14	14	Times

Executive Officer

Item	Scope	FY2017	FY2018	FY2019	FY2020	FY2021	Unit
Number of executive officers (excluding those also serving as directors)	NGK	13	15	15	22	22	Persons
Male		13	15	14	21	21	Persons
Female		0	0	1	1	1	Persons

Compensation for Directors and Audit & Supervisory Board Members

Item	Scope	Category	FY2017	FY2018	FY2019	FY2020	FY2021	Unit
Compensation for directors and auditor & supervisory board members	NGK	Directors (excluding Outside Directors)	676	570	535	591	685	Million yen
		Outside Directors	61	62	59	59	67	Million yen
		Outside Officers	62	66	66	66	68	Million yen

Measures for Returning Profits to Shareholders

Item	Scope	FY2017	FY2018	FY2019	FY2020	FY2021	Unit
Dividends per share	NGK	44	50	50	30	63	Yen
Return on equity (ROE)	NGK	10.4	7.6	5.8	7.9	12.9	%

Intellectual Property Management

Item	Scope	FY2017	FY2018	FY2019	FY2020	FY2021	Unit
Number of patents held (Japan)	NGK	3,191	3,352	3,513	3,521	3,374	Cases
Number of patents held (Overseas)	NGK	4,186	4,346	4,485	4,452	4,444	Cases

Whistleblowing System

Item	Scope	FY2017	FY2018	FY2019	FY2020	FY2021	Unit
Number of helpline consultation cases	NGK	43	75	55	28	43	Cases