Omani state miner begins silica-sand production

23 September 2025

State-backed Minerals Development Oman (MDO) has announced the start of silica-sand production from its Block 51F concession in the sultanate.

Concession Block 51F is in the Wilayat of Mahout in Al-Wusta Governorate and covers 2,156 square kilometres (sq km).

The block is estimated to contain about 47 million tonnes of silica, limestone and dolomite.

The production site covers approximately 5 sq km within Block 51F. MDO, which was awarded concession rights for Block 51F by Oman’s Ministry of Energy & Minerals (MEMR) in October last year, will act as the resource owner and overall project supervisor.

MDO has appointed Muscat-based The Earth Sciences Consultancy Centre to oversee operations and development of the silica-sand project, including investment and production management.

According to the project development plan approved by the MEMR, initial production capacity is projected at 100,000 tonnes a year (t/y), with a purity level of about 98%.

The initial focus will be on producing and supplying raw silica to local and regional markets to meet growing demand and reduce import dependency, the Oman News Agency (ONA) reported.

Future developments will include establishing a primary silica-processing facility to improve product quality and attract high-tech industries such as semiconductors, glass manufacturing, chemical processing and metallurgical applications, ONA added.

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Silica is a vital raw material for several industries and is used in the production of glass, display screens, semiconductors and advanced materials for solar power and energy storage.

MDO is a subsidiary of the sultanate’s sovereign wealth institution, the Oman Investment Authority (OIA), and was established in 2017. In addition to Block 51F, the company holds concession rights for nearby Block 51K in Al-Wusta Governorate.

MDO began work on the Naqa Salt project in Block 51K last year. Spread across 109 sq km within the 51K concession, the Naqa Salt facility will have an output capacity of up to 2 million t/y. The site is also in the Wilayat of Mahout, near the port of Duqm.

MDO will invest approximately $35m in the project, which it says will produce salt with up to 99% purity.

In May, MDO signed an agreement with India-based Dev Salt to partner on the Naqa Salt project. The company did not specify the nature or terms of the agreement; it is understood to be an offtake agreement for future production.

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Indrajit Sen
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