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2025 International Earth Science Olympiad Schedule 1 update on 08/06/2025 The arrival date for IESO 2025 is August 7, 2025, and the […]

Located in the southwestern part of Shandong Province, Ji’ning is renowned as the “Hometown of Confucius and Mencius,” the “Canal

IESO 2025 We are delighted to extend our warmest welcome to participants from around the globe to the International Earth