Why Xinhai’s Tanzania 1200t/d Gold Plant Is a Masterclass in EPC+M+O Mining Execution

 In the mining industry, the success of a project depends not only on advanced technology and equipment but also on professional, efficient, and reliable end-to-end execution. At the heart of Xinhai Mining’s global portfolio, the Tanzania 1,200t/d gold mineral processing plant stands as a shining example of what a fully integrated EPC+M+O project can achieve. From initial design to final commissioning, this project showcases Xinhai’s ability to turn complex ore challenges into long-term operational success.

The Tanzania project was no ordinary assignment. The ore body contained both sulfide (10.7g/t) and oxide (2.4g/t) gold-bearing materials, with Au as the only valuable element. This dual composition demanded a flexible, tailored processing flow that could deliver consistent results across both ore types. The solution? A full all-slime cyanidation gold extraction process, engineered to maximize recovery rates while maintaining operational stability. Through this system, the plant achieved leaching rates of 93.75% for sulfide ore and 91.58% for oxide ore—figures that reflect the precision of Xinhai’s design and execution.

At Xinhai Mining Group, we don’t just build plants; we deliver comprehensive mining solutions backed by decades of real-world project experience. Our EPC+M+O model covers every stage of the project lifecycle: testing, engineering, equipment manufacturing, installation, commissioning, and ongoing operation support. For the Tanzania gold plant, this meant working closely with the client to align every detail with their goals, from process design to site-specific construction planning.

To learn more about how we brought this project to life, visit the full case study here:

https://www.fewstern.org/cases/Tanzania-1200t-Gold_11.html

The plant’s success is rooted in a series of carefully designed processing stages. Starting with the crushing stage, a single open-circuit crushing process was implemented to prepare the ore for downstream operations. This was followed by a closed-circuit grinding and cyclone classification stage, ensuring the ore was ground to the optimal particle size for efficient leaching. The separation stage then leveraged the all-slime cyanidation process, where gold-bearing carbon was sent to a desorption electrolysis system to extract pure gold. Finally, the resulting gold slime was smelted, while tailings were treated with thickening and dewatering before safe stacking.

This end-to-end flow didn’t just deliver high recovery rates—it also addressed critical construction and operational challenges. Before the project even broke ground, Xinhai developed a comprehensive plan covering project management, construction technology, resource supply, and coordination. During construction, our team proactively addressed shortages of materials, machinery, tools, and technicians, keeping the project on track despite site-specific hurdles. Most notably, with much of the plant’s equipment constructed from thin steel, we implemented strict protocols to prevent deformation during lifting and transportation, ensuring every piece of machinery arrived at the site intact and ready for installation.

This project is more than a single success story—it’s proof of Xinhai’s ability to adapt to diverse mining environments and deliver results that stand the test of time. For mining operators looking to unlock more value from their ore, our team combines deep technical expertise with on-the-ground execution capabilities to turn even the most complex projects into reality.