Company Profile

From the prime industrial location of Kofu, Yamanashi, our Japan based company, Kohsai Co,. Ltd., is excelling in bringing forth top quality Earnuts and Jewellery Clasps. We specializing in manufacturing and customizing a wide variety of Ear Plugs Silicone Earnuts, 10x13 mm Earrings Clip Earnuts, Circle Earring Findings Earnuts, Lobster Clasps, etc. The entire gamut is manufactured using quality tested materials with all of them being processed in perfect adherence to the international standards of quality. Our company has been offering this marvelous collection to clients, since 1967, in exchange of prices that are set fairly by our team. We are also engaged in rendering premium customer support to all who bestow trust on our name. 

Key Facts of Kohsai Co,. Ltd.:

Nature of Business

Manufacturer, Supplier and Exporter

Year of Establishment



Kofu, Yamanashi (Japan)

No. of Employees


Contact Us

3049, Ryuchi Kaishi Yamanashi,, Kofu, Yamanashi, 4000194, Japan
Phone :+81551284181