Neighbouring India is also negotiating full transitfacilities with Dhaka to transport goods to its nearly landlocked north-eastern states through Bangladesh.
Mr Abraha was recently replaced as part of a shake-up of the company, which has seen a portfolio of state-owned transit and warehousing facilities added to it.
In addition, Grassley, the Senate's top Republican tax writer, says the bill would "prop up" a complex tax shelter related to banks' leasing facilities to transit systems and public utilities.
The council lifted the suspension - initially imposed until safer facilities for animals in transit could be built at the port - on legal advice after the High Court overturned the ban pending a judicial review.
Some 240 tonnes of food spoils during transit and in storage every year, but using mobile to track trucks and monitor the temperature of storage facilities could save enough food to feed 40 million people in 2017 - equivalent to the entire population of Kenya - it said.