Qingdao Gold Mining Innovation Technology Co., Ltd. established o in 2021 at Qingdao. Gold Mining has been dedicated to the fire assay flux production and R&D since its inception. Our quality assurance/quality control system ensures that the gold content of all fire assay flux is less than 1 ppb, and the silver content is less than 0.1 ppm, making Gold Mining is an ideal choice for fire assay analysis. The raw materials for each batch of Gold Mining fire assay flux is tested by SGS before production, and only those that pass the test then the materials to be used to produce the fire assay flux, That to be ensuring that every product supplied meets high-end standards. Gold Mining is an authorized supplier of fire assay flux for INTERTEK. We can customize fire assay flux according to your recipe needs and offers various packaging options. For more information, please feel free to contact us. Welcome visit our factory.