Group 1 - The core viewpoint indicates that in May 2025, China's granite stone and its products experienced a decline in both export quantity and value, with a total export quantity of 320,000 tons, representing a year-on-year decrease of 1.5%, and an export value of 18.9 million USD, reflecting a year-on-year decrease of 16% [1] Group 2 - The data source for the export statistics is identified as China Customs, with the analysis being organized by Zhiyan Consulting, a leading industry consulting firm in China that specializes in providing comprehensive industry research reports and consulting services [3]