The Chinese envoy says the agreement would ease the way for Bangladeshi exports and reduce the trade deficit between the countries
Police said the Chittagong-bound bus came under attack at the Sadar Upazila on Friday night.
"But the passengers were saved as the Molotov cocktails did not explode," Chandraganj police outpost Sub-Inspector Abul Hashem said.
Blockade campaigners bombed the vehicle causing driver Md Sumon, 30, to lose control.
He was seriously injured in the head and died on way to Noakhali Medical College and Hospital, police said.
Numerous vehicles have been attacked since the BNP started enforcing the blockade on Jan 5 to press for a snap election.
At least 40 people have been killed so far since the blockade started.