Technology company for customer satisfaction, STI

Technical innovation Company,
Creative and Challenging Company!

STI Co., LTD!

Since 1989, STI Co., LTD has developed thermal treatment equipment using electric energy, and currently focusing on optical fiber preform manufacturing equipment business that has global No.1 technology. In addition, STI is leading environmental business that reduces emission of pollutants as disposing carcass by alkaline hydrolysis; Electric furnace and electric kiln business for plasticity of semiconductor ceramic.

We sincerely appreciate our customers who have been supporting our development, and we will continue to become a world-class company specializing in thermal technology.

Recently, STI was recognized for growth potential as a global specialized corporation through the selection of World Class 300. We will become a corporation enhancing customer value and satisfaction by securing competitiveness through challenges and innovation.

Additionally, we will fulfill corporate social responsibility and lead culture of growing together.