Highly material aspects - 2017 Annual Integrated Report

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	Units	Trends	2017	2016	2015	2014	2013
Energy
Primary energy consumption	Petajoules low heating value (PJ)		130	138	175	179	181
Secondary energy purchased	Petajoules low heating value (PJ)		49	53	63	–	–
Total energy sold	Petajoules low heating value (PJ)		22	23	26	–	–
Fuel consumption from non-renewable sources	Petajoules low heating value (PJ)		100	104	107	100	101
Fuel consumption from renewable sources	Petajoules low heating value (PJ)		3	4	5	–	–
Energy efficiency index – Baseline 100% in 2012	%		94	94	96	99	99

Air quality
Nitrogen oxides emissions – NO_x	Metric tons		9,466	11,098	12,210	12,679	10,980
Nitrogen oxides intensity	Kg per € EBITDA		0.0042	0.0058	0.0063	0.0071	0.0068
Sulfur oxides emissions – SO_x	Metric tons		4,598	5,395	6,563	6,620	10,336
Sulfur oxides intensity	Kg per € EBITDA		0.0021	0.0028	0.0034	0.0037	0.0064
Non-methane volatile organic compounds emissions – NMVOC	Metric tons		4,949	4,968	6,781	7,158	7,464
Non-methane volatile organic compounds intensity	Kg per € EBITDA		0.0022	0.0026	0.0035	0.004	0.0046

Water and wastewater
Freshwater withdrawal	Million m³		328	491	537	535	554
Freshwater withdrawal intensity	Cubic meters per € EBITDA		0.15	0.26	0.28	0.3	0.34
Chemical oxygen demand (COD)	Tons O₂		5,526	7,539	8,834	9,652	9,715
Chemical oxygen demand intensity	Kg per € EBITDA		0.0025	0.0040	0.0045	0.0054	0.006

Waste and hazardous materials
Non-hazardous industrial waste	1,000 Metric tons		1,643	1,463	1,453	1,637	–
Hazardous industrial waste	1,000 Metric tons		101.7	194.2	202	194.6	–
Total industrial waste	1,000 Metric tons		1,745	1,657	1,655	1,831	–
Industrial hazardous waste not treated in a sustainable way in absolute volume	1,000 Metric tons		41.8	50.3	47.1	49.7	–
Industrial hazardous waste not treated in a sustainable way intensity	Kg per € EBITDA		0.0187	0.0265	0.0241	0.0279	–
Substances of very high concern (SVHC) according to REACH criteria present in products sold	Number		35	20	20	25	23
Percentage of completion of Analysis of Safer Alternatives program for marketed substances	%		49	18	5	–	–

Diversity and inclusion
Total Headcount	Headcount		24,459	27,030	26,350	25.909	27,146
Percentage of women in the Group	%		23	23	22	22	20
Senior Manager	headcount		396	428	428	428	456
Middle Manager	Headcount		2,898	3,026	2,819	2,731	2,727
Junior manager	Headcount		5,090	5,348	4,491	4,186	4,126
Non-manager	Headcount		16,075	18,228	18,612	18,564	19,837
Solvay’s workforce under 30 years old	Headcount		2,765	3,242	–	–	–
Solvay’s workforce between 30-49 years old	Headcount		13,578	15,107	–	–	–
Solvay’s workforce 50 years old and older	Headcount		8,116	8,681	–	–	–

Customer welfare
Solvay’s Net Promoter Score (NPS)	%		36	27	24	14	–

Management of the legal, ethics and regulatory framework
Total claims made	Number		83	65	–	–	–
Total claims closed including cases for which there was insufficient information or cases that were misdirected or referred	Number		71	62	–	–	–
Unsubstantiated claims among resolved cases	Number		38	28	–	–	–
Substantiated claims among resolved cases	Number		19	29	–	–	–

Process accident and safety
Percentage of product lines having a risk analysis updated in the last five years	%		77	65	69	64	58
Number of "Risk Sheets Level 1" at the end of the year	Number		56	46	94	217	11
Percentage of level 1 risk situations resolved within one year	%		100	100	100	100	100
Risk level 1 situation resolved	Number		48	98	232	23	111
Sites with required Process safety management systems practices in line with their level	%		79	90	84	–	–
Process incidents with a Medium severity	Number		281	259	215	–	–
Process incidents with a High severity	Number		0	1	1	–	–
Process safety rate	%		0.9	0.7	0.6	0.4	–
Medium severity incidents with environmental consequences	Number		59	40	46	55	–
Medium severity incidents with environmental consequences in which the limits of the operating permit were exceeded	Number		27	26	26	–	–

1.2. Highly material aspects