Pioneer Corp. (Kawasaki, Kanagawa, Japan.) and Sharp Corp. (Abeno-ku, Osaka, Japan), which entered into a business and capital alliance, have agreed to dissolve the capital alliance. The two companies are operating an optical disc business through a joint venture, and have agreed to continue their business alliance. On September 20, 2007, they agreed to establish a business and capital alliance to cooperate in the optical disc business (Pioneer Digital Design and Manufacturing Corp, established June 29, 2009), and are now dissolving the capital alliance because they have achieved its goals, whose aim was to closely oversee the business alliance. Pioneer holds 10,000,000 shares of Sharp (shareholding ratio: 0.59%), and Sharp holds 30,000,000 shares of Pioneer (shareholding ratio: 8.05%).