Nissan Diesel Motor Co. announced a new three-year restructuring program Tuesday that will help it reduce its interest-bearing debt to 250 billion yen by the end of March 2006 from about 420 billion yen at the end of last March.

The program, to start in April, calls for expanding its tieup with China's Dong Feng Automobile Co. to include the provision of more parts and technology and cooperation on bus development.

The move follows the comprehensive tieup agreement struck earlier this month between Dong Feng and Nissan Motor Co., Nissan Diesel's parent firm, on joint production of cars, trucks, buses and other commercial vehicles in China.