Tokyo Broadcasting System Inc., a TV and radio broadcaster, will reject a proposal by Rakuten Inc. to integrate their managements under a holding company, sources have said.

According to the sources, TBS will accept a proposal by Rakuten, its biggest shareholder, to form a business tieup, but will reject the integration.

As a precondition for the tieup, TBS will urge Japan's largest online shopping mall operator to substantially reduce its nearly 20 percent stake in the broadcaster, the sources said.