The gold tailings resource is abundant in Sudan and with very good average grade 6-10 grams per ton. The owner collects millions of tons of tailings from different sites. Prominer first did the dressing test to determiner the grinding finess details and leaching process parameters such as sodium cyanide dosage, leaching time, etc. Being impressed by the professional service of Prominer, the Owner made the deal with Prominer for 6 lines, and each line has a capacity of 1500 tons per day. Then Prominer supplied the complete EPC service to the Owner including engineering design, equipment supplying, installation and commissioning, and we also send a team to do the operation and management for the Owner and train his local team. The final product is gold ingot with 99% purity.