The Lion Group is working to reduce water use in line with the LION Eco Challenge 2050, a set of long-term environmental objectives formulated in 2019 with the aim of realizing environmental sustainability. In 2019, Lion began calculating water use throughout the supply chain in order to understand water use throughout product lifecycles—from raw material procurement to production, transport, use and disposal. Total water use throughout the life cycles of Lion’s products in 2025 was approximately 2.0 billion m3.
Breakdown of Water Use over the Lifecycles of Lion Products*
* Scope: Lion and domestic and overseas consolidated subsidiaries, January–December 2025.
The Lion Group is working to reduce water usage throughout the life cycles of its products. The product life stage that accounts for the greatest portion of water use is the consumer use stage, which accounts for approximately 75% of the average total product lifecycle. This is due to the Group’s extensive sales of products that incorporate water, such as laundry detergents. To reduce water usage during product use we are expanding our lineup of environmentally friendly products that help save water. For example, since 2020, all Lion liquid laundry detergents can be used with just one rinse cycle. In April 2025, we also developed and marketed Acron Yasashisa Premium, a zero-rinse laundry detergent.
The Group has set a 2030 target of reducing water usage across product life cycles by 30% in comparison with 2017 levels. In 2025, life cycle water usage was reduced 24% per unit of net sales in comparison with 2017.
Going forward, we will continue to develop products that help reduce water usage during product use and promote environmentally friendly habits as we strive to reduce the environmental impact of households.
Breakdown of Water Use over the Life Cycles of Lion ProductsNANOX one
These laundry detergents rinse away easily, leaving minimal residue and enabling one-rinse washing.

Acron Yasashisa Premium
It is a fashionable clothing detergent with softening ingredients. A special polymer with proprietary technology supports the action of cleaning ingredients. Even with a small number of cleaning ingredients, dirt and odors can be removed cleanly, and it can be used with 0 rinses.
(This product’s effects on skin have been tested under the supervision of dermatologists.)

Lion sells NANOX one and CHARMY Magica through Lion Corporation (Singapore) Pte Ltd, Lion Daily Necessities Chemicals (Qingdao) Co., Ltd. and Lion Corporation (Hong Kong) Ltd. and Lion Home Products (Taiwan) Co., Ltd., helping to save water.
The Lion Group continuously monitors water usage (water withdrawal) and wastewater discharge in its business activities as it strives to alleviate environmental impact and reduce water usage through recycling. We have been implementing ongoing measures to reduce water used in cleaning processes. As part of these efforts, we have been operating industrial wastewater recycling facilities at the Chiba Plant since 2016.
Identification and Evaluation of Water-Stressed Regions
The Group performs water stress evaluations for all its business locations using Aqueduct, a set of tools developed and announced by the World Resources Institute. We consider the regions in which our business locations are located to be water-stressed if their baseline water stress (one of the indicators outlined by Aqueduct) is designated “extremely high.” The results of these evaluations showed that the Group has four-locations in water-stressed regions, and their water intake was 2% of the Group’s total.
The Lion Group manufactures and sells products that are closely tied to water usage. Moreover, Lion’s plants use a great deal of water in manufacturing processes to clean facilities and in heating and cooling equipment. Recycling wastewater after use can thus produce a significant water-saving effect. To this end, in 2016 Lion introduced a wastewater recycling system at the Chiba Plant—which uses the most water among Lion’s plants—that has been in continuous use since installation. The greatest feature of this system has been the adoption of new wastewater recycling facilities (①). Thanks to these facilities, we are able to recycle wastewater from production processes that would previously have been discharged into the environment. Furthermore, we installed new wastewater treatment facilities to (②) enable greater purification of water from employee sanitary facilities and cleaning facilities than had previously been possible, better removing nitrogen, which is a source of marine eutrophication.
The Chiba Plant was the first household product factory in Japan to recycle wastewater. In 2017, the plant received the New Technology Encouragement Award*1 from the Japan Society on Water Environment and the Responsible Care Award*2 from the Japan Chemical Industry Association.
*1In June 2017, the development of the Chiba Plant’s wastewater recycling system was recognized with the New Technology Encouragement Award from the Japan Society on Water Environment, Japan’s largest academic society related to protecting the aquatic environment. This award is given for research related to aquatic environments or to individuals or organizations that have devised innovative, promising aquatic environment technologies from the perspective of social contribution.
The Japan Society on Water Environment New Technology Encouragement Award [Japanese]*2In May 2017, the Chiba Plant received the 11th Responsible Care Award from the Japan Chemical Industry Association for its initiatives to protect the aquatic environment and contribute to the local community. Since the start of its operations, the Chiba Plant has continuously implemented activities to protect the aquatic environment.
Lion’s Responsible Care Activities