International Chemistry Olympiad

The **International Chemistry Olympiad** (**IChO**) is a chemistry-themed International Olympiad. The first IChO was held in 1968. It has gradually expanded to over 80 countries from all continents. The competition takes place each year organized by a different host country observing the regulations and traditions of the IChO.

The IChO is intended to stimulate the activities of students interested in chemistry by a way of the independent and creative solution of chemical problems. It encourages cooperation and international understanding.

## Overview

|**No.**|**Host country & city**|**Time**|
| --- | --- | --- |
|1<sup>st</sup> IChO|Prague, Czechoslovakia|June 18 – 21, 1968|
|2<sup>nd</sup> IChO|Katowice, Poland|June 16 – 20, 1969|
|3<sup>rd</sup> IChO|Budapest, Hungary|July 1 – 5, 1970|
|4<sup>th</sup> IChO|Moscow, Soviet Union|July 1 – 10, 1972|
|5<sup>th</sup> IChO|Sofia, Bulgaria|July 1 – 10, 1973|
|6<sup>th</sup> IChO|Bucharest, Romania|July 1 – 10, 1974|
|7<sup>th</sup> IChO|Veszprem, Hungary|July 1 – 10, 1975|
|8<sup>th</sup> IChO|Halle, East Germany|July 10 – 19, 1976|
|9<sup>th</sup> IChO|Bratislava, Czechoslovakia|July 4 – 14, 1977|
|10<sup>th</sup> IChO|Torun, Poland|July 3 – 13, 1978|
|11<sup>th</sup> IChO|Leningrad, Soviet Union|July 2 – 11, 1979|
|12<sup>th</sup> IChO|Linz, Austria|July 13 – 23, 1980|
|13<sup>th</sup> IChO|Burgas, Bulgaria|July 13 – 23, 1981|
|14<sup>th</sup> IChO|Stockholm, Sweden|July 3 – 12, 1982|
|15<sup>th</sup> IChO|Timisoara, Romania|July 2 – 11, 1983|
|16<sup>th</sup> IChO|Frankfurt, West Germany|July 1 – 10, 1984|
|17<sup>th</sup> IChO|Bratislava, Czechoslovakia|July 1 – 8, 1985|
|18<sup>th</sup> IChO|Leiden, Netherlands|July 6 – 15, 1986|
|19<sup>th</sup> IChO|Veszprem, Hungary|July 6 – 15, 1987|
|20<sup>th</sup> IChO|Espoo, Finland|July 2 – 9, 1988|
|21<sup>st</sup> IChO|Halle, East Germany|July 2 – 10, 1989|
|22<sup>nd</sup> IChO|Paris, France|July 8 – 17, 1990|
|23<sup>rd</sup> IChO|Lodz, Poland|July 7 – 15, 1991|
|24<sup>th</sup> IChO|Pittsburgh, United States|July 11 – 22, 1992|
|25<sup>th</sup> IChO|Perugia, Italy|July 11 – 22, 1993|
|26<sup>th</sup> IChO|Oslo, Norway|July 3 – 11, 1994|
|27<sup>th</sup> IChO|Beijing, China|July 13 – 20, 1995|
|28<sup>th</sup> IChO|Moscow, Russian Federation|July 14 – 23, 1996|
|29<sup>th</sup> IChO|Montreal, Canada|July 13 – 22, 1997|
|30<sup>th</sup> IChO|Melbourne, Australia|July 5 – 14, 1998|
|31<sup>st</sup> IChO|Bangkok, Thailand|July 4 – 11, 1999|
|32<sup>nd</sup> IChO|Copenhagen, Denmark|July 2 – 11, 2000|
|33<sup>rd</sup> IChO|Mumbai, India|July 6 – 15, 2001|
|34<sup>th</sup> IChO|Groningen, Netherlands|July 5 – 14, 2002|
|35<sup>th</sup> IChO|Athens, Greece|July 5 – 14, 2003|
|36<sup>th</sup> IChO|Kiel, Germany|July 18 – 27, 2004|
|37<sup>th</sup> IChO|Taipei, Chinese Taipei|July 16 – 25, 2005|
|38<sup>th</sup> IChO|Gyeongsan, South Korea|July 1 – 11, 2006|
|39<sup>th</sup> IChO|Moscow, Russian Federation|July 15 – 24, 2007|
|40<sup>th</sup> IChO|Budapest, Hungary|July 12 – 21, 2008|
|41<sup>st</sup> IChO|Cambridge, United Kingdom|July 18 – 27, 2009|
|42<sup>nd</sup> IChO|Tokyo, Japan|July 19 – 28, 2010|
|43<sup>rd</sup> IChO|Ankara, Turkey|July 9 – 18, 2011|
|44<sup>th</sup> IChO|Washington, United States|July 21 – 30, 2012|
|45<sup>th</sup> IChO|Moscow, Russian Federation|July 15 – 24, 2013|
|46<sup>th</sup> IChO|Hanoi, Vietnam|July 21 – 29, 2014|
|47<sup>th</sup> IChO|Baku, Azerbaijan|July 20 – 29, 2015|
|48<sup>th</sup> IChO|Tbilisi, Georgia|July 23 – August 1, 2016|
|49<sup>th</sup> IChO|Nakhom Pathom, Thailand|July 6 – 17, 2017|
|50<sup>th</sup> IChO|Bratislava, Slovakia – Prague, Czech Rep.|July 19 – 29, 2018|
|51<sup>st</sup> IChO|Paris, France|July 21 – 30, 2019|
|52<sup>th</sup> IChO|Istanbul, Turkey (online)|July 23 – 30, 2020|
|53<sup>th</sup> IChO|Osaka, Japan (online)|July 24 – August 2, 2021|
|54<sup>th</sup> IChO|Tianjin, China (online)|July 10 – 18, 2022|
|55<sup>th</sup> IChO|Zürich, Switzerland|July 16 – 25, 2023|
|56<sup>th</sup> IChO|Riyadh, Saudi Arabia|July 21 – 30, 2024|
|57<sup>th</sup> IChO|Dubai, United Arab Emirates|July 5 – 14, 2025|
|58<sup>th</sup> IChO|Tashkent, Uzbekistan|July 1 – 10, 2026|
|59<sup>th</sup> IChO|Chinese Taipei|2027|