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Who are we?

Organizing Center for STEM Olympiad (OCSO) is an organization engaged in STEM development to create 21st century skills (critical thinking, creative thinking, collaborations, communication and computational thinking) through competitions, contests and olympiads. The concept of this organization is how to carry out the STEM Olympiad to create 21st century skills (critical thinking, creative thinking, collaborations, communication and computational thinking).

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Finalist of the World Young Mathematicians Olympiad (WYMO) 2025

Here we announce the results of theWorld Young Mathematicians Olympiad (WYMO) 2025. We hope this will make your school, family and country proud. See you in Bali

Asian Chemistry Olympiad (AChO)

Chemistry competition program for students in Asia and around the world. Held every January every year.

International Life Science Olympiad (ILSO)

Life Science (Biology and Chemistry) competition program for students from Asia and around the world. Held every May every year.

World Young Mathematics Olympiad (WYMO)

Mathematics competition program for students in Asia and around the world. Held every August every year.

World Young Physicist Olympiad (WYPO)

Physics competition program for Asian and worldwide students. Held every November every year.

Find out about our upcoming events

We are open to programs from us and from our alliance members. Please visit to learn more about STEM development programs.

International Team Biology Challenge (ITBC)

The International Team Biology Challenge (ITBC) is a global, team-based biology Olympiad designed to assess and enhance high-school students’ conceptual understanding, practical skills, and collaborative problem-solving abilities. Competing in teams of three to four, participants combine individual strengths—ranging from genetics and ecology theory to laboratory techniques—to tackle a series of theoretical questions, data-driven case studies, and hands-on or simulated mini-experiments.

International Modern Physics Olympiad (IMPhO)

The International Modern Physics Olympiad (IMPhO) is an advanced, globally oriented physics competition that focuses on the frontier topics of twentieth- and twenty-first-century physics—such as special and general relativity, quantum mechanics, particle physics, condensed-matter phenomena, and astrophysics. Aimed primarily at talented upper-secondary students, IMPhO challenges participants to demonstrate both rigorous theoretical insight and innovative experimental or computational problem-solving skills.

International Student Research and Innovation Fair (ISRIF)

The International Student Research and Innovation Fair (ISRIF) is a global showcase and competition that celebrates original research projects and inventive solutions developed by secondary- and tertiary-level students across diverse scientific, technological, and social-science domains. Functioning both as an exhibition hall and a judged contest, ISRIF invites young innovators to present posters, prototypes, and demonstration pitches before panels of academics, industry professionals, and potential investors.

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Why STEM Competitions Matter — And How They Sharpen Students’ Skills
Award of the Lavoisier International Chemistry Olympiad (LIChO) 2025
Finalist of the Lavoisier International Chemistry Olympiad (LIChO) 2025