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Acid Plant Database November 1, 2026
| Owner | Navoi Mining & Metallurgy Combinat (NMMC) | - ![]() |
| Location | Uchkuduk Uzbekistan |
|
| Background | - | |
| Website | www.ngmk.uz | |
| Plant | Plant 1 | Plant 2 |
| Coordinates* | 42° 9' 8" N, 63° 41' 51" E | - |
| Type of Plant | - | - |
| Gas Source | - | - |
| Plant Capacity | 450,000 MTPA | 500,000 MTPA |
| SA/DA | - | - |
| Emissions | - | - |
| Status | - | - |
| Year Built | 1985 | - |
| Technology | - | - |
| Contractor | - | CITIC Construction |
| Remarks | Sulphuric acid production is part of the Northern Mining Administration (NMA) Uchkuduk operation which is involved in in-situ leaching uranium mining and processing. | |
| Pictures | ![]() |
|
| General | Today NMMC is a large multi-profile industrial complex that in addition to exploration, mining and production of uranium, gold, fluor-spar, construction materials and phosphorites includes into its activity production of marble goods, sulfuric acid, jewelry, knitted and textile goods, machines and household equipment. NMMC’s successful development is a result of step by step providing the production facilities with modern equipment for mining, excavating, transporting, metallurgy, drilling, prospecting, construction, machine building, metal-working and analytical measurements. They are also equipped with computers, checking and measuring apparatus, automatic machinery, automated quality control systems, designing control systems and mining works preparation control systems. | |
| References | (1) Sulphur No. 320 – January-February 2009 | |
| News |
September 28, 2026 - Uzbekistan is building a $54.5 million
sulfuric acid production plant in Karmana district of Navoi region, with the
facility expected to produce 500,000 tons annually once commissioned, was
noted on Sept. 26. This was reflected in the statement by the TMK.
The project is being implemented by TMK Chemicals, part of the Uzbekistan
Technological Metals Complex (TMK), and is intended to expand domestic
production of sulfuric acid, an important input for technological processes
in the mining and metallurgical industries. TMK Management Board
Chairman Farhod Abdullayev reviewed the progress of construction at the
project site. "Farhod Abdullayev, Chairman of the Management Board of
TMK, reviewed the current progress of work at the project site. Particular
attention was paid to the quality of construction and installation works,
compliance with technical requirements and, most importantly, preparations
for commissioning the new industrial facility," the statement said.
Key production facilities are currently being constructed alongside
engineering and utility infrastructure needed to integrate the plant into a
unified production system. The project is expected to strengthen the
domestic supply of sulfuric acid for industrial consumers and support the
production chain in Uzbekistan’s mining and metallurgical sectors.
Construction and installation work is being carried out by CITIC
Construction, an international engineering and construction company, using
modern technological solutions and in line with international standards.
Once operational, the plant will add significant new sulfuric acid
production capacity to Uzbekistan’s industrial base, with annual output
planned at 500,000 tons. January 5, 2025 - The joint-stock company Uzkimyosanoat has held talks with China’s China Huanqiu Contracting & Engineering Corporation (HQC) to strengthen cooperation and implement new projects. During the discussions, plans were outlined to launch ammonia and urea production at JSC "NavoiAzot" and to produce sulfuric acid by processing phosphogypsum at JSC Ammofos-Maxam. As a result of the meetings, agreements were signed for the joint implementation of these projects. The capacity of sulfuric acid production in Uzbekistan will increase by 1.4 times, from 950 metric tons to 1,300 metric tons per year by 2020, according to the decree of Uzbekistan’s Cabinet of Ministers. The government decree envisages increasing the capacity by constructing new sulfuric acid producing facilities (with capacity of 650,000 metric tons per year each) at Ammofos-Maxam JSC and Navoi Mining and Metallurgical Combine. It is planned to commission the facilities at Ammofos-Maxam and Navoi Mining and Metallurgical Combine in 2018 and 2019, respectively. Meanwhile, the outdated facilities for sulfuric acid production will be decommissioned at Ammofos-Maxam (with capacity of 500,000 metric tons per year) and Navoi Mining and Metallurgical Combine (450,000 metric tons per year). It is planned to finance the projects with the own funds of the Uzhimprom State Joint Stock Company, Uzbek Fund for Reconstruction and Development, loans from local and foreign banks, own funds of Ammofos-Maxam and Navoi Combine. However, the cost of the projects is not specified in the government decree. The general contractors for construction of the facilities on a “turnkey” basis will be determined through closed tenders. Ammofos-Maxam JSC, commissioned in 1969, is the largest of the three chemical enterprises producing phosphate fertilizers in Uzbekistan. The design capacity allows to produce over 338,000 metric tons of ammophos, 500,000 metric tons of sulfuric acid and 417,000 metric tons of wet-process phosphoric acid per year. Spanish MAXAM Corp. obtained 49 percent of the enterprise’s share for $18 million and investment commitments worth $30 million in January 2008. The state is the owner of 51 percent of the block of shares. Navoi Mining and Metallurgical Combine is one of the largest gold producers in Central Asia. The combine is fully owned by the state. The annual production volume nears $2 billion.
January 2009 - The Navoiy Mining and Metallurgical Combine company
has announced that it will invest $12 million to upgrade a sulphuric acid
facility to increase sulphuric acid production from 400,000 t/a to 450,000
t/a in order to boost uranium production, according to Fertilizer Week.
The additional sulphuric acid will be used to process uranium ore at a new
extraction facility at the Northern Konimekh deposit. Once completed, the
new sulphuric acid facility will help Navoiy boost uranium production by
approximately 50%. (1) |
|
MTPD - Metric Tonne per Day
STPD - Short Ton per Day
MTPA - Metric Tonne per Annum STPA - Short Ton per
Annum
SA - Single Absorption
DA - Double Absorption
* Coordinates can be used to
locate plant on Google Earth