Our Founding Philosophy

The founders of SEKISUI Chemical recognized the wisdom that would come from the company being guided by principles that would empower every employee. Our “3S principles” have defined excellence for more than 70 years and continue to guide our actions today.



At SEKISUI, we serve our stakeholders by creating social, environmental and economic value through responsible business practices.


At SEKISUI, we accelerate innovation by eagerly taking on new challenges, adapting to change and staying ahead of the times.


At SEKISUI, we contribute to society by helping to solve social issues with our superior technologies and quality.

Our Guiding Principles

A better future starts with our actions today and prompts us to remain focused on the principles of environmental stewardship, customer satisfaction and quality, and diversity in human resources. Our dedication to serving these three guiding principles allows us to contribute to society through our business activities:

Customer Service & Quality

Customer service and quality are the cornerstones of everything we do. Our dedication to both is uncompromised. Together, they provide inspiration, direction, innovation, and momentum.

Human Resources

SEKISUI promotes professional and personal development, which are reinforced by our commitment to inclusion, diversity, and equality.


SEKISUI fulfills our duty to the natural world through corporate stewardship and social responsibility.