The president of major courier firm Yamato Transport Co. on Tuesday criticized a set of of four postal services deregulation bills being debated in the Diet and reiterated his company's decision not to enter the mail delivery business.

"The bills are counterproductive to reforms and are unacceptable to our company philosophy as well," Keiji Aritomi told the House of Representatives Committee on Public Management, Home Affairs, Posts and Telecommunications. "That's why we decided not to enter the market."

On April 26, Yamato Transport announced it had abandoned its plan to enter the mail delivery business, saying the government's moves to privatize the sector are likely to burden new entrants with too many requirements.