BEIJING (Reuters) - China said on Thursday it will halve additional tariffs levied against 1,717 products imported from the United States last year, following the signing of a Phase 1 trade deal that brought a truce to a bruising trade war.China's finance ministry said in a statement that tariff reductions for the relevant goods, which were initially announced on Sept. 1, will take effect from 0501 GMT on Feb. 14. The reductions come about three weeks after the two countries signed the Phase 1..