An exhibitor (3rd R) sells jade articles at the 2025 China Kunming International Stone Expo in Kunming, southwest China's Yunnan Province, on July 10, 2025. The 2025 China Kunming International Stone Expo opened in Kunming Thursday. The 5-day expo covers an area of about 50,000 square meters, gathering over 100 domestic and foreign business associations and exhibition groups.