The company said the move is an alignment with industry trends in which fewer companies offer pensions. WILMINGTON, Del. -- The DuPont Company said it will eliminate its pension contribution for active employees. ... active employees will no longer accrue additional benefits, and employees under age 50 also will no longer receive dental, medical and life insurance benefits in retirement. ... Since 1998, nearly one-quarter of all Fortune 500 companies have stopped contributing to employees' primary pension plans, and 40 percent offer only a 401(k).