| Armenia | Australia |
|---|
 Dr. Gagik Grigoryan |  Dr. Bilor Kurghinyanbilorkurghinyan@gmail.com | Lachlan McGinness | Stephen Catsamas |
| Austria | Azerbaijan |
|---|
 Dr. Marianne Kornerphysikolympiade@gmx.at | Karin Gallephysikoylmpiade@gmx.at | Ayhan Sulemanzade | Siraj Yahyazade |
| Bangladesh | Belarus (2021) |
|---|
 M Arshad Momen |  Fayez Ahmed Jahangir Masud | Anatoli Slabadzianiukmarkovich@bsu.by | Leonid Markovichmarkovich@bsu.by |
| Belgium | Bolivia |
|---|
Prof. Leonard Philippepleonard@ulb.ac.be | Prof. Bernadette Hendrickx |  Prof. Marko Andrade Uziedam.andrade@umss.edu.bo | John Medina |
| Bosnia and Herzegovina | Brazil |
|---|
Abdulah Jašarevic | Senad Isakovic | Prof. Ricardo Andreas Sauerweinpiqueira@lac.usp.br |  Prof. Ivan Guilhon Mitoso RochaIvan.rocha@gp.ita.br |
| Bulgaria | China |
|---|
 Prof. Miroslav Vergilov Abrashevmvabr@phys.uni-sofia.bg |  Dr. Neno Todorovneno@phys.uni-sofia.bg | Prof. Feng Song | Prof. Jin Wang |
| Colombia | Croatia |
|---|
 Prof. Fernando Vega Salamancavega.fernando@gmail.com | | Prof. Kreso Zadro | Prof. Damir Pajic |
| Cuba | |
|---|
Prof. Uberlando Labrada Casi | Prof. Fidel Labanino | | |
| Cyprus | Czech Republic |
|---|
 Dr. Theodoros Aslanidisaslas12@hotmail.com |  Constantina Kountourimconstantinakountouri@gmail.com | Jan Kríž | Dr. Filip Studnikafilip.studnicka@uhk.cz |
| Denmark | Egypt |
|---|
Dr. Michael Brix Pedersenmichael.brix.pedersen@gmail.com | Dr. Jens Ulrik Lefmannju@lefmann.dk | Dr. Alaa I. Ibrahim | |
| El Salvador | Estonia |
|---|
Miguel Antonio Castro Hernándezmiguel.castro@jovenestalento.edu.sv | K?íž Menjívar Ascencio | Kaarel Kivisalu | Andres Põldaruandres.poldaru@gmail.com |
| Finland (2021) | France |
|---|
 Lasse Frantilasse.franti@gmail.com | | Dr. Yannick Alméras | Dr. Nicolas Schlossernicolas.schlosser@louislegrand.eu |
| Georgia | Germany |
|---|
Ramaz Khomerikikhomeriki@hotmail.com | Grigol Peradze | Pascal Reeck | Dr. Stefan Petersen |
| Greece | Hong Kong, SAR |
|---|
Dr. Alexandros Kateris |  Dr. Panagiotis Tsakonasptsakon@gmail.com | Dr. Hoi-Chun Adrian Pogbjo@ust.hk | Dr. Ting Pong Choy |
| Hungary | Iceland |
|---|
Tamás Sarkadi | Tamás Tasnádi | Freyr Hlynsson |  Matthias Baldursson Harksenmatthias.harksen@gmail.com |
| Indonesia | Iran |
|---|
 Dr. Syamsu Rosidsyamsu.rosid@gmail.com |  Dr. Rinto Anugraharinto@ugm.ac.id | Prof. Ahmad Shirzad | Prof. Mehdi Saadat |
| Israel | Italy |
|---|
Pavel Radzivilovsky | Eyal Walach |  Dr. Dennis Luigi Censidl.censi@gmail.com | Dr. Alberto Meroni |
| Japan | Kazakhstan |
|---|
Dr. Isao H. Suzuki | Prof. Hiroo Totsuji |  Prof. Samat Maxutovsamatmaksutov@gmail.com | Andrey Sidorenkocoryphaei@gmail.com |
| Korea, South | Kosovo |
|---|
 Prof. Moohee Leemhlee@konkuk.ac.kr | Prof. Yunki Kim | Ardita Kurtishaj | Ibrahim Hameli |
| Kyrgyzstan | Latvia |
|---|
 Prof. Dr. Sultanalieva Raiaraia-ktu@mail.ru | Duishon Satybaldyev | Dr. Janis Cimurs | Davis Zavickisdavis.zavickis@gmail.com |
| Lithuania | Luxembourg |
|---|
Dr. Jevgenij Chmeliov | Dr. Vytautas Jakštasvytautas.jakstas@ftmc.lt |  Annick Hoffmannannick.hoffmann@men.lu | Dr. Ben Kasel |
| Macao, China | Macedonia, North |
|---|
Dr. Ian Hou | Dr. Kar Wei Ng |  Prof. Lambe Barandovskibarandovski@gmail.com |  Prof. Boce Mitrevskibocemitrevski@gmail.com |
| Malaysia | |
|---|
Wan Mohd Aimran | Phaik Ying Chan | | |
| Mexico | Moldova |
|---|
 Dr. Rodrigo Pelayo Ramosrodrigo.pelayo@gmail.com | Dr. Eleazar Neri Medinaeleazarneri@gmail.com | Dr. Sergiu Cârligcarligsergiu@gmail.com | Calina Isacovaisacova.calina@gmail.com |
| Mongolia | Montenegro |
|---|
Dr. Zorigt Gombosuren | Ganbat Munkhuu |  Prof. Dr. Predrag Miranovic pedjam@ucg.ac.me | Prof. Stevan Djurdjevic |
| Nepal (2021) | Netherlands |
|---|
 Prof. Dr. N. P. Chapagainnpchapagain@gmail.com |  Dr. Gopi C. Kaflegck223@gmail.com |  Dr. Ad Mooldijka.h.mooldijk@uu.nl |  Enno van der Laanj.e.van.der.Laan@rug.nl |
| Nigeria | Norway (2021) |
|---|
 Dr. Lewis Obagboyelewisgboye@yahoo.com |  Okorie Okikeokike_isu@yahoo.com |  Thomas Frågåtthomasf@fys.uio.no |  Torbjørn Mehltorbjorn.mehl@nmbu.no |
| Pakistan | Philippines |
|---|
 Dr. Shahid Qamarshahid_qamar@pieas.edu.pk |  Dr. Aman ur Rehmanaman@pieas.edu.pk | Prof. Esguerra Jose Perico | Dr. Alexander De Los Reyes |
| Poland |
|---|
| |  Prof. Jan Mostowskimosto@ifpan.edu.pl | Dr. Jacek JasiakJacek.Jasiak@fuw.edu.pl |
| Portugal | Qatar |
|---|
 Rui Davide Martins Travassorui.travasso@gmail.com |  João Carvalhojcarlos@uc.pt | Ossama Elsayed |  Sherif Omars.sherif@edu.gov.qa |
| Romania | Russia (2021) |
|---|
 Delia Constanta Davidescu, Ph.D.davdelia@yahoo.com |  Adrian Dafinei, Ph.D.asdafinei@yahoo.com |  Osin Mikhailmiosin@yandex.ru |  Voronov Artemvoronov.aa@mipt.ru |
| Saudi Arabia | Serbia |
|---|
 Talal Alrashiditmalrashidi@gmail.com | Faisal Alsallom |  Vladimir Markovicvmarkovic@kg.ac.rs | Prof. Imre Gut |
| Singapore | Slovakia |
|---|
Dr. Hoi Nok Tsao |  Dr. Da Yang Tandayang_tan@sutd.edu.sg |  Prof. Cáp Ivoivo.cap@fel.uniza.sk |  Dr. Lubomír Konrádlubomir.konrad@gmail.com |
| Slovenia | South Africa |
|---|
 Jurij Bajcjurij.bajc@pef.uni-lj.si |  Barbara Rovšekbarbara.rovsek@pef.uni-lj.si | Dr. Mervlyn Moodleymoodleym2@ukzn.ac.za |  Shihal Saprysapry.shihal@gmail.com |
| Spain | Sweden |
|---|
 Dr. Antonio Guirao Piñeraaguirao@um.es | Prof. Jesús Arjona Martínez |  Max Kesselbergmax.kesselberg@yahoo.se |  Bo Söderbergbo.soderberg@thep.lu.se |
| Switzerland | Syria |
|---|
Eric Ströher |  Nicolà Andreas Gantenbeinnicola.gantenbein@skn.ch |  Akil SalloumAkil.salloum@gmail.com | |
| Taiwan | Tajikistan |
|---|
 Prof. Chen Chuan-Renchuanrenchen@gmail.com | Prof. Shang-Fang Tsaisfincyc@gmail.com |  Abdiev Erkinzhonerkinzhonabdiev@gmail.com | Beyhan Niyozovrasulzoda.j2000@gmail.com |
| Thailand | The United States of America |
|---|
Dr. Pornthep Nisamaneephong | Dr. Wittaya Kanchanapusakit | Dr. Tengiz Bibilashvili | Michael Hofmann Winer |
| Turkey | Ukraine |
|---|
 Ahmet Yildirimahmety@sakarya.edu.tr |  Salih Aksoysalihaksoy01@gmail.com |  Prof. Kreminskyi Borysb_kreminskyi@ukr.net |  Prof. Igor Anisimovanisimov1958igor@gmail.com |
| United Arab Emirates | United Kingdom |
|---|
Abdallah El Marhoune | | Dr. Anson Cheunganson.cheung@highgateschool.org.uk | Stuart Hindle |
| Uzbekistan | Vietnam |
|---|
 Doniyor Babajanovd.b.babajanov@gmail.com |  Mukhiddin Mirakhmedov | Prof. Vuong Dang Duc |  Prof. Luc Huy Hoanghoanglhsp@hnue.edu.vn |
