According to the Shanghai Futures Exchange on March 17, from April 10, 2020 to January 8, 2021: Copper, aluminum, zinc, lead, nickel, tin, rebar, wire, hot rolled coil, stainless steel , Gold, silver, natural rubber, pulp, fuel oil, petroleum pitch futures delivery fee standards are temporarily adjusted to 0 (including futures to spot and standard warehouse receipt transfers and other transactions that are settled through exchanges and charge fees based on delivery standards).