Before 2016, citizens of US, Australia and Canada were required to pay a reciprocity fee before they arrive to Argentina. But in March 2016 during Mr Mauricio Macri’s administration, it was suspended only the collection of reciprocity fee to US citizen and Argentinian born US citizens traveling to Argentina. Then, in July 1st 2017, Argentina Government announced that the "Reciprocity Fee" will no longer be required for Australian Citizens to enter Argentina. Finally, from January 1st 2018, it was suspended the collection of reciprocity fee to US citizen traveling to Argentina.
On the other hand, Chinese passport holders can enter Argentina with a valid USA visa (category B2) or Schengen visa but must pay Argentina’s Reciprocity Fee before entering the country and get Electronic Travel Authorization. You can apply here: http://www.migraciones.gov.ar/accesible/indexA.php?reciprocidad
The countries in this list do not require visa when traveling as a tourist:
A) UP TO 90 (NINETY) DAYS: Andorra, Armenia, Australia, Austria, Barbados, Belarus, Belgium, Bolivia, Brazil, Bulgaria, Canada, Colombia, Costa Rica, Croatia, Czech Republic, Chile, Cyprus, Denmark, Ecuador, El Salvador, Estonia, Finland, France, Georgia, Germany, Greece, Guatemala, Guyana, Haiti, Honduras, Hong Kong (With Passport R.A.E.H.K.), Hungary, Ireland, Iceland, Israel, Italy, Japan, Korea Republic, Latvia, Liechtenstein, Lithuania, Luxembourg, Macedonia, Malta, Mexico, Monaco, Montenegro, Nicaragua, Norway, New Zealand, Netherlands, Panama, Paraguay, Peru, Poland, Portugal, Romania, Russian Federation, Saint Kitts and Nevis, San Marino, Santa Lucia, Saint Vincent and The Grenadines, Serbia, Singapore, Slovak Republic, Slovenia, South Africa, Spain, Sweden, Suriname; Switzerland, Thailand, Trinidad and Tobago, Turkey, Ukraine, United Arab Emirates, United Kingdom Of Great Britain and Northern Ireland, United States of America, Uruguay, Vatican city.
B) UP TO 60 (SIXTY) DAYS: Venezuela.
C) UP TO 30 (THIRTY) DAYS: Grenada; Hong Kong (With British Passport B.N.O.); Jamaica; Republic of Kazakhstan and Malaysia.