Valery Budny: There is no strategy and legislation in Russia enabling the full cycle processing of precious raw materials within the country

Valery Budny, Head of the Jewelry Russia program and CEO of the JUNWEX media holding, told Rough&Polished about the results of the meeting and pressing issues in the precious metals and precious stones (PMPS) and the jewelry sectors.

11 april 2024

Paul Zimnisky: Natural diamonds face the risk of eroding their appeal if constantly discounted

New York-based independent diamond and jewellery analyst and consultant Paul Zimnisky told Rough & Polished’s Mathew Nyaungwa in an exclusive interview that the industry should do away with discounts. He said the industry should treat natural diamonds...

01 april 2024

Edahn Golan: Lab-grown diamond prices to continue declining

In an exclusive interview with Rough&Polished's Mathew Nyaungwa, Edahn Golan, proprietor of the eponymous Edahn Golan Diamond Research and Data, predicted that the prices of lab-grown diamonds would continue to decline, especially at the retail and...

25 march 2024

ADPA’s Ellah Muchemwa: G7 restrictions to bring extra costs from diamond mining to retail

The African Diamond Producers Association (ADPA), which has openly registered its disdain for the G7’s rough diamond trade restrictions, is of the opinion that the move will bring extra costs on all stages, from mining to retail. ADPA executive...

18 march 2024

Eduard Gorodetsky: Currently we see high demand for synthetic diamonds for use in technology segment rather than in jewelry

Director General of the Advanced Synthetic Research Center Eduard Gorodetsky told Rough&Polished about the current situation at the company, new exclusive technologies in the synthesis and production of lab-grown crystals, as well as the Research Center’s...

11 march 2024

Mantengu to produce first chrome concentrate this month

06 june 2023
Mantengu Mining has commissioned the first of three chrome processing plants at its Langpan mining operation, in South Africa’s Limpopo Province.
This follows 18 months of planning, which included a competent person's report and the hiring of Jacques Pretorius as Langpan's general manager.
The plant's first delivery of chrome concentrate is scheduled for June 8 or later.
Mantengu chief executive Mike Miller said the initial chrome mill was built to accommodate a monthly output of 30 000 tonnes (t), or 70 t/h. 
However, the new chrome plant's commissioning has increased production capacity to 36 000 t per month, or 100 t/h.  
The plant is projected to generate around 18 000 t of chrome concentrate per month, with a chrome percentage ranging from 42% to 44%.
The second plant will have a monthly capacity of 30 000 t, while the third plant will have a monthly capacity of 14 000 t.
Mantengu intends to commission both plants in August.
The Langpan chrome reserve is estimated to be 2.17 million tonnes.

Mathew Nyaungwa, Editor in Chief of the African Bureau, Rough&Polished