 DHL Express has renewed its aircraft operating lease with Air Transport Services Group for six years and added two all-cargo jets for the contractor to fly on its behalf. ATSG NASDAQ: ATSG said Tuesday it has signed a lease extension with the express carriers in-house airline for five Boeing 767-300 aircraft through April 2028, as well as a separate contract under which subsidiary ABX Air will provide crew, maintenance and insurance CMI to operate the aircraft. 