Our Website Has Been Redesigned
We have completely refreshed the design and information structure and launched our new corporate website.
We have reorganized our products, services, and contac
NEWS
News
Latest News
Updates from Kosei Co., Ltd.
We Launched Our Official Instagram Account
We are pleased to announce the launch of our official Instagram account.
We regularly share an archive of jewelry we have handled and delivered, featuring pieceOur Website Is Now Live
We have launched the Kosei Co., Ltd. website. We look forward to sharing updates here.
Kosei Co., Ltd.
TEL/FAX
082-567-5628 FAX 082-567-5629
MAIL：info@kosei-global.com
Address: 3-6-6-404 Otemachi, Naka-ku, Hiroshima, Japan
TEL/FAX
082-567-5628 FAX 082-567-5629
MAIL：info@kosei-global.com
Address: 3-6-6-404 Otemachi, Naka-ku, Hiroshima, Japan
© 2026 Kosei Co., Ltd. All Rights Reserved.