News & Announcements
Stay updated with the latest competition information
China IESO Selection Committee
National Earth Science Olympiad (CESO)
Organized by the Seismological Society of China (SSC), CESO is a national academic competition dedicated to promoting earth science education and discovering talented students. Since its establishment in 2018, CESO has been successfully held for seven editions, covering 31 provinces and municipalities, with tens of thousands of students and teachers participating annually. CESO serves as the official selection pathway for China's team to the International Earth Science Olympiad (IESO).
Knowledge Promotion
Promote earth science literacy and spark curiosity
Talent Discovery
Identify and nurture top earth science talents
International Vision
Cultivate future leaders on the global stage
Research Mindset
Foster scientific inquiry and innovative thinking
One-Stop Service Platform
Everything you need — from registration to results
Learning & Growth Plan
From science outreach to competitive excellence — build a complete learning system
Building Interest & Awareness
Understand what earth science is, build a basic framework, spark curiosity
Four Branches — Systematic Learning
Master the foundational knowledge of four core earth science branches
Competition-Level Training & Past Papers
Master competition-level knowledge and complete the first round of past paper training
Advanced Skills & IESO Standard
Reach finals level, adapt to the International Earth Science Olympiad (IESO) format
Academic Output & Deep Exploration
Convert learning into academic output, cultivate research thinking
2026 New Season · Explore the Blue Planet
New challenges await — see you on the stage of Earth Science
Partners & Supporters
With sincere gratitude to our partners for their strong support
