Shandong WINNERS uses its own humic acid raw material, sourced entirely from its own weathered coal mine. Located in Fukang, Xinjiang, the mine covers an area of 2.43 square kilometers and is one of the few humic acid mining areas in China boasting both high reserves and excellent quality. Currently, the humic acid content has been determined to be over 70%, with a recoverable yield exceeding 15 million tons. Shandong WINNERS’ humic acid raw material, tested by multiple authoritative organizations, boasts a CEC of 400-450 meq/100g, making it the highest-quality mineral resource for producing various humic acid products.