ダイコー 本社 Official site

Daiko Corporation has obtained certification for the international standard of the quality management system, "ISO 9001:2015," with the aim of improving customer satisfaction and continuously strengthening our quality management system. We will continue to contribute to solving our customers' challenges by providing high-quality industrial products.

Recently, Daiko Co., Ltd. has published a job support book for high school students titled "Start! (Osaka Prefecture Edition 2026)" and has included company information on the related career education support website "Job Start." In this publication and on the site, the role of "gaskets and packing" in supporting social safety, our well-equipped facilities, and interviews with young employees active on the front lines are detailed, showcasing the appeal of Daiko's manufacturing.

Recently, Daiko Co., Ltd. has been featured in the "Job Book for Junior High School Students," which is published as a supplementary educational material for "Career Education" promoted by the Ministry of Education, Culture, Sports, Science and Technology. This publication is a career education support booklet created to convey the significance of work and the appeal of local businesses to junior high school students in the community. In Daiko's section, we provide an easy-to-understand explanation for students about the role of "gaskets and packing," which quietly supports everything from everyday life to industry, as well as insights into the manufacturing field.

Recognition as an Excellent Tax Reporting Corporation (2013) On May 31, 2013, we received a commendation from the Nishinari Tax Office as an Excellent Tax Reporting Corporation. An Excellent Tax Reporting Corporation is a system that recognizes and commends corporations whose management practices are excellent, and whose tax reporting and payment are conducted appropriately, with particularly outstanding accounting practices, as selected by the tax office's criteria. Currently, less than 1% of all corporate entities in Japan are designated as "Excellent Tax Reporting Corporations." We are deeply honored and grateful for this recognition, and we sincerely accept it, striving to continue being a company that complies with tax laws and fulfills its social responsibilities.

Recognition as an Excellent Reporting Corporation (2018) On May 31, 2018, we received a commendation from the Nishinari Tax Office as an Excellent Reporting Corporation. This is an honor that follows our certification on May 31, 2013, marking our second consecutive recognition. An Excellent Reporting Corporation is a system that selects and recognizes corporations whose management practices are excellent, and whose tax reporting and payment are conducted appropriately, with particularly outstanding accounting practices, based on criteria set by the tax office. Currently, less than 1% of all corporate entities in Japan are designated as "Excellent Reporting Corporations." We are deeply grateful for this honor, which is entirely due to the support of our customers and business partners. We are committed to continuing our efforts to be a company that contributes to society, so as not to bring shame to this honor.