Ties between the two global superpowers have continued to deteriorate under Biden's presidency, over issues including Taiwan, human rights and technology sector competition.
After Toyota Indus Motors halted the production and booking of cars, the Pakistan Suzuki Motors has also announced to shut its plants. The economy is in worst period.
Vice-captain De Silva hit 109 and put on 82 runs for the eighth wicket with Ramesh Mendis, who was unbeaten on 45, after the hosts resumed day four on 176-5 in Galle.
The South Asian nation has experienced lengthy blackouts in recent weeks, sometimes for up to 13 hours a day, as utilities struggle to source enough diesel and gas to meet demand.
