Environmental Accounting

Astellas calculates the costs of investment and expenses related to environmental conservation for its facilities in Japan and their outcomes based on the Ministry of the Environment's "Environmental Accounting Guidelines."

Environmental conservation costs in fiscal 2023 comprised ¥3,203 million in investments and ¥2,832 million in expenses (including depreciation costs). The main investments for preventing pollution were in the maintenance of wastewater treatment plants and the repair of underground water-supply pipelines. Investments in global environmental conservation included the installation of solar panels at research centers and updating hot water systems to heat pump chillers. The economic benefits generated through environmental protection activities amounted to ¥215 million, which includes lower costs owing to energy savings, the sale of waste organic solvents and waste metals, lower costs of treating waste materials and the purchase of regenerated organic solvents. All high-concentration PCBs have been processed.

Details regarding the group's investments in environmental conservation and environmental performance over the past five years.

Total environmental conservation costs in fiscal 2022

Category			Environmental Consnervation Costs
			Investments	Costs
			Investments	Total	Expense	Depreciation
Business Area Cost			3,154	1,683	1,005	679
Breakdown	Pollution Prevention	Prevention of atmospheric pollution	109	338	277	61
		Prevention of water pollution	274	406	213	193
		Prevention of soil contamination	299	112	26	86
		Prevention of noise, bad odors and vibrations	7	18	16	1
		Other	0	9	9	0
		Subtotal	689	882	542	341
	Global Environmental Conservation	Mitigation of climate change	597	311	53	258
		Prevention of Ozone layer depletion	1,852	812	120	693
		Management of chemical substances	0	15	14	1
		Other	0	8	0	7
		Subtotal	2,449	1,146	187	959
	Resource Circulation	Efficient use of wastes	0	206	206	0
		Conservation of water	0	0	0	0
		Treatment of wastes	16	60	57	3
		Other	0	17	13	4
		Subtotal	16	284	276	8
Upstream/Downstream costs			0	13	13	0
Administration costs			0	201	201	0
R&D costs			50	50	26	24
Social activity costs			0	2	2	0
Environmental remediation costs			0	253	253	0
Total			3,203	2,832	1,500	1,332
Total environmental conservation costs, excluding environmental remediation costs			3,203	2,579	1,247	1,332

Economic Benefit Related to Environmental Conservation

Measures taken	Economic Benefit Related to Environmental Conservation^*
Cost reductions through energy conservation	¥ 213 million
Sludge drying, reduction in amount of waste liquid disposal contracted out (through increased disposal in-house)	¥ 0 million
Conservation of resources through reuse of solvents, and reduction in fuel purchases through conversion of solvents to fuel	¥ 0 million
Sale of waste solvents	¥ 2 million
Total	¥ 215 million

* Quantifiable items only included in calculations