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About Ext Co. Ltd.

Provider of customer’s support know-how, WEB site / WEB system development, SEO and analytics measures, CMS development, portal and SNS sites, Development / delivery of customer support tools, customer consulting, customer support market building and WEB MARKET building. The company’s activity and services cover many different fields, such as applications for business needs, entrepreneur consulting, real estate, etc.

Ext Co. Ltd. Headquarter Location

1-8-1 Nishi-Ku

Osaka, 550-0013,



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