What Jagersfontein diamond mine staff should have done to avoid the dam wall collapse

A mine dam wall at South Africa’s Jagersfontein diamond mine in Free State province recently collapsed twice within two weeks, killing one person and damaging properties. The dam at the disused mine held liquid waste from a tailings reprocessing operation...

03 october 2022

“The global diamond industry must now learn to steer clear of this obstructive and outdated “blood/conflict diamond” terminology,” says Dr M’zee Fula Ngenge, Chairman, African Diamond Council

Dr M'zée Fula Ngenge, the Chairman of the African Diamond Council (ADC), a Mining Engineer and highly respected Senior Strategy Advisor celebrated 40 years in the global diamond industry this year. He acts as a professional liaison within...

26 september 2022

Anglo American Platinum makes significant investments in SA’s hydrogen economy

Anglo American Platinum continues to make significant investments in South Africa’s hydrogen economy, according to a company spokesperson. The Platinum Group Metals (PGMs) miner’s external communication principal Nomonde Ndwalaza told Rough&Polished’s...

19 september 2022

Ellen Joncheere: I am launching a new initiative to support young designers globally

Ellen Joncheere, CEO of HRD Antwerp, in an exclusive interview with Rough&Polished told about the history of the HRD Design Awards and its new, 18th edition.

12 september 2022

Hari Krishna Exports eyes untapped diamond jewellery markets

Ghanshyam Dholakia, born in a farmers’ family in a remote village Dudhala in Gujarat was inspired along with his siblings by his father to follow their destiny and this led them to Surat city - a world of opportunities! In the early seventies, Ghanshyam’s...

05 september 2022

Capital cost for Karowe underground expansion rises – Lucara

16 august 2022
Lucara Diamond says the estimated capital cost for the Karowe underground expansion project, in Botswana, has increased from $534 million to $547 million.
It said the increase reflects expected pricing changes following the execution of the main sink contract.
Mine ramp-up is expected in the first quarter of 2026 with full production from the Karowe underground expansion projected anticipated in the second half of 2026.
Lucara spent $29.1 million on the Karowe underground expansion project during the three months ended June 30, 2022.
This was mainly on construction activities and procurement of long lead items, including pre-sink activities for both the production and ventilation shafts.
The main sink contract for the production and ventilation shafts was executed and the main sinking of the ventilation shaft commenced. 
“The transition from the pre-sink to the main sinking phase has been slower than anticipated however, opportunities have been identified to decrease main sink cycle times and reduce the impact [on] the schedule,” said Lucara.
It said activities for the Karowe underground expansion project in the upcoming quarters of 2022 include the commencement of the main sinking for the production shaft, awarding of bulk air cooler tender and continued procurement of underground equipment.
The miner will also continue with the detailed design and engineering of the underground mine infrastructure and layout as well as commission a 29-kilometre 132 kilovolts bulk power supply powerline by the end of the year.
The Karowe underground expansion project is expected to extend the mine life to at least 2040, with underground carat production predominantly from the highest value EM/PK(S) unit and is forecast to contribute about $4 billion in additional revenues, using conservative diamond prices.

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