Is it true that the Shanghai Mint sang songs to send old horses to welcome the New Year and Ma Benteng Day silver bars?

It is true that the Shanghai Mint sang a song in Ma Benteng to send the old horse to welcome New Year's Eve. It is true that Ma Benteng silver bars were forged by Shanghai Mint with the authorization of the People's Bank of China, so it is also true that Shanghai Mint sang a song to send the old horse to welcome the new year.