Quality Assurance Activity

TAIYO YUDEN CO., LTD. and its affiliates and subsidiaries (hereafter called "TAIYO YUDEN") considers that ensuring quality and product safety of product which is designed, developed, produced, or sold by TAIYO YUDEN is utmost management issue, and shall observe this statement, and ensure quality and product safety in order to make persistent supply of product with customer satisfaction to worldwide market.

In addition to a vertical management structure in which each division has established quality assurance departments overseeing domestic and overseas production sites, we established a horizontal management system in which the Quality Assurance Division oversees all business divisions, thereby ensuring close information sharing among them.
Quality information collected from within and outside the Company is appropriately analyzed and deployed horizontally across business divisions to prevent quality incidents and avoid recurrence. We have also established a system ensuring that high-priority quality information is promptly and accurately communicated to senior management, enabling them to make immediate management decisions.

Quality is one of the most important foundations on which TAIYO YUDEN builds relationships of trust with customers. Continuously providing high-quality products in a stable manner is a source of the Group's competitiveness and our responsibility to society.
We promote Company-wide quality assurance activities by building quality into every process—from design, procurement, and production to shipping and post-delivery support—while continuously working to further enhance quality.

For the purpose of appropriately managing customer information, promptly detecting serious quality safety incidents and implementing preventive actions of the same kind of incidents, TAIYO YUDEN has established "PL operation regulation."
In order to report serious quality incidents to operating officers promptly and correctly, TAIYO YUDEN has established "standards on product safety management" and "Criterion of initial reaction for automotive part quality complaints."

While responding promptly to customers, the quality assurance division and the quality assurance departments of all the divisions take the lead, working in collaboration with each related department to achieve early detection of complaints, recurrence prevention and preventive actions.

Furthermore, the "PL operation provisions" define the specific responsibilities and activities of each department in relation to the four items listed below. Based on these provisions, TAIYO YUDEN is committed to preventing Product Liability (PL) incidents that could cause harm to customers' lives or property due to defects in products manufactured and sold by the Company, and to providing products with a high level of safety.