It operates clothing and fashion malls across Japan and recently opened a store in Shanghai.

In January 2007, OPA became a direct wholly owned subsidiary of retail giant Daiei through a merger with Jujiya Co., Ltd. At the end of 2006, a transaction with the Tokyu Land corporation was made.

OPA Co. Ltd.'s 80%-owned subsidiary Canal City Hakata[2] is a shopping complex comprising a great variety of business and leisure facilities including a shopping mall, a movie theater, amusement facilities, two hotels, showrooms and corporate offices.

There are about 250 shops in the Canal City, dealing with a variety of goods ranging from trendy fashion outfits and cosmetics to sundry items and souvenirs made in Japan and abroad.

A canal runs through the middle of the site among the rounded shape and colorful buildings which make up a small town and the dynamic fountain shows announce the time every thirty minutes.