mining – Page 2 – The Diamond Certification Laboratory of Australia (DCLA)

Botswana Diamonds acquires Sekaka from embattled Petra

Botswana Diamonds (LON:BOD) said on Monday it had completed the acquisition of Sekaka, the exploration vehicle that belonged to embattled rival Petra Diamonds (LON:PDL) and which held three prospecting licenses in the country’s Central Kalahari Game Reserve.

In one of its licenses, Sekaka had singled out the KX36 kimberlite pipe, which is situated about 70 km from Gem Diamonds’ Ghaghoo mine, and 260 km north-west of Botswana’s capital Gaborone.

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Sekaka also had a recently built, fit-for-purpose bulk sampling plant on-site that includes crushing, scrubbing, dense media separation circuits and X-ray recovery modules within a secured area.

The acquisition includes an extensive database, built up over 15 years of exploration.

Botswana Diamonds believes the information contained in the database will provide substantial support to its future kimberlite exploration activities in the mining-dependent country, the world’s second-largest diamond producer.

“We are delighted that this acquisition has now closed. This paves the way to explore commercial development options for KX36 and begin to evaluate the extensive database in conjunction with ours to discover more kimberlites in prime diamond real estate,” chairperson John Teeling said in a media statement.

Diamond exports from the southern African nation dropped 42% to $1.49 billion in the first nine months of this year as production fell 29% to 12.3 million carats due to covid-related restrictions.

Botswana’s mining sector provides a fifth of the country’s GDP and 80% of its foreign exchange earnings.

Mounting woes
Petra Diamonds, the former owner of Sekaka, has been struggling for over two years. Its weak financial position pushed it to shed non-core assets and put itself up for sale in June.

The company reversed the decision in October, opting instead for a debt-for-equity restructuring. The deal would leave existing shareholders with just 9% of the company.

Petra is also dealing with allegations of human rights abuses at its Williamson mine in Tanzania, resulting from the actions of its security guards.

It recently reported a 36% fall in revenue and a net loss of $223 million (168.7 million pounds) for the year ended June 30, as the coronavirus pandemic deepened the company’s financial woes.

Source: mining.com

Rio Tinto asks court to OK sale of partner’s diamonds in Canada mine

Global miner Rio Tinto is seeking court approval to sell its partner’s share of diamonds from a mine in Canada’s Northwest Territories, a filing showed, hoping to recover around C$120-million plus legal fees and other costs.

Rio owns 60% of Diavik Diamond Mines Inc (DDMI) and says it is owed C$119.5-million plus about C$2.4-million in fees by junior partner Dominion Diamond.

Dominion holds a 40% stake in the northern mine, located about 300 km north of the territorial capital of Yellowknife.

Closely held Dominion sought creditor protection in April, saying it could not afford Rio’s cash calls amid coronavirus-related disruptions in the global diamond industry.

Dominion said October 9 a proposed deal to sell its nearby Ekati mine to an affiliate of its parent company The Washington Companies for $126-million fell apart. That deal did not include its minority Diavik stake.

DDMI said in court filings that Dominion has not repaid cover payments and “has no intention of doing so” and that it would be “unjust and inequitable” to not permit DDMI to recover the amounts owing to it in accordance with its joint venture agreement.

“We remain focused on ensuring Diavik diamond mine continues to operate safely, maintaining the mine’s significant contribution to the Northwest Territories and local communities through payments to government, employees and suppliers,” a spokesman for Diavik said on Friday.

A court hearing on the application is set for October 30 in Calgary, Alberta.

Diavik produced 6.7-million carats in 2019 but is scheduled to close in 2025, with cleanup costs estimated at $365.3-million, according to court documents.

Dominion declined comment on the fate of its Diavik stake. Rio has said it will not bid on the minority interest.

Source: miningweekly

Dominion Diamond Mines sale of Ekati falls through

The future of the Ekati diamond mine in Canada’s Northwest Territories remains uncertain after Dominion Diamond Mines announced that a deal to sell it to a subsidiary owned by its parent company, The Washington Companies, has fallen apart.

Dominion Diamond reported on Oct. 9 that three insurance companies – Aviva Insurance Company of Canada, Argonaut Insurance and Zurich Insurance – had reached “an impasse” in negotiation with the purchaser, and stated “there is no reasonable prospect of reaching a satisfactory agreement among them.”

Dominion Diamond, which was purchased by The Washington Companies in November 2017 for $1.2 billion, was granted creditor protection in April. Mining was suspended and the Ekati mine placed on care and maintenance in March due to the coronavirus.

Altogether, the three insurance companies have issued about C$280 million in surety bonds to the government of the Northwest Territories that were intended to guarantee that the diamond mine could be closed safely and reclaimed once the mine closes permanently.

The sale was subject to a condition that the insurance companies and the purchaser reached an agreement on the treatment of the existing surety bonds.

Dominion remains in creditor protection until November 7, 2020, unless extended, it said, and is working with its advisors on next steps.

“The company will be assessing all strategic alternatives to return the Ekati diamond mine to full operations for the benefit of its employees, the Northwest Territories and other stakeholders,” Dominion Diamond stated in its news release.

The company has also confirmed that Pat Merrin, the company’s interim CEO since February, has relinquished that role. “In light of this development, Pat has advised that it would be appropriate that he step down as Interim CEO,” a company spokesman wrote in an email to The Northern Miner.

“Kristal Kaye, CFO and Mike Welch, COO will lead Dominion through this challenging period with strong support from the rest of the management team and our independent Chairman Brendan Bell.”

Dominion Diamond Mines is one of the world’s largest producers and suppliers of premium rough diamonds. The company owns a controlling interest in the Ekati diamond mine, which it operates, and 40% of the Diavik diamond mine. It also holds a controlling interest in the Lac de Gras diamond project. All of its assets are in the Northwest Territories.

Source: Northern Miner

Star Diamond recovers 2,409 diamonds in second bulk sample

Star Diamond Corp announced that a total A total of 2,409 diamonds weighing 123.27 carats have to date been recovered from the second bulk sample trench (19FALCT004) excavated on its Star kimberlite at the Fort à la Corne kimberlite field in central Saskatchewan.

These initial results are from the second of 10 bulk sample trenches excavated by 60% optionee Rio Tinto Exploration Canada Inc in 2019.

The average diamond grades from the first two trenches are similar to historical diamond grade results detected from the underground bulk sampling and large diameter drilling completed on the Star kimberlite between 2004 and 2009. These results are also similar to the overall weighted average grade 14 carats per hundred tonnes reported in Star Diamond’s PEA of the Star and Orion South kimberlites .

The three largest diamonds recovered to date from 19FALCT004 are 2.98, 2.03 and 1.99 carats, respectively, and were all recovered from Early Joli Fou kimberlite. The EJF is the dominant kimberlite unit within the project in terms of ore volume and diamond grade.

As disclosed by Star Diamond on August 4, 2020, there are indications that recent diamond breakage has occurred in the diamond parcels recovered thus far from RTEC’s trench cutter bulk sampling program, suggesting that the extraction and/or processing systems being used by RTEC may be resulting in diamond breakage. Comprehensive diamond breakage studies are required to assess the nature and extent of the diamond breakage resulting from RTEC’s methods and the possibility that larger diamonds would have been recovered absent such breakage.

Senior vice president of exploration and development, George Read, states: “The initial diamond results from 19FALCT004 and 19FALCT001 continue to show grades similar to the previous underground bulk sampling and LDD performed by Star Diamond on the Star kimberlite. Individual EJF kimberlite samples recovered in the first two trenches exhibit a range of grades 9.81 to 21.22 cpht for 19FALCT004 and 4.88 to 23.34 cpht for 19FALCT001, which are as expected for the EJF kimberlite.”

Source: resourceworld

“Botswana Should Not Produce or Sell Synthetic Diamonds”

According to the official, synthetics will “compromise” the value of Botswana’s natural diamonds

Lucara 123 carat diamond — Lucara Diamonds

Mmetla Masire, permanent secretary at Botswana’s Ministry of Minerals, said in a Parliamentary Accounts Committee quoted by Rough & Polished that Botswana cannot engage in production and sale of synthetic diamonds as this will compromise “the value of our diamonds”. Credit: Debswana

The Letlhakane diamond mine in Botswana — De Beers mining

Masire said that “Botswana will send a confusing message to its customers should it decide to produce and sale synthetic diamonds”. He added that the Debswana Diamond Company (the joint venture between the government of Botswana and diamond miner De Beers) is searching for other markets other than the US to sell its diamonds, including in China. Credit: De Beers

Masire “refused to provide an update on the ongoing negotiations between Gaborone and De Beers as disclosure of any information pertaining to the negotiations will potentially influence the outcome”. Botswana and De Beers’ huge 10-year diamond sale agreement is expected to expire by the end of 2020. Botswana accounts for more than two-thirds of De Beers’ diamond production.

Source: israelidiamond

WA cuts diamond royalty rate

Western Australia has reduced its diamond royalty rate by a significant 33.3 per cent, a move that has been welcomed by Gibb River Diamonds.

The company’s lobbying has led to the reduction of the state diamond gross royalty rate from 7.5 per cent to 5 per cent.

Gibb River stated that the royalty change was in line with the recommendations of the Mineral Royalty Rate Analysis report.

This was published by the Western Australian Department of State Development and Department of Mines and Petroleum in 2015.

“The board of (Gibb River) believes that the reduction of the diamond royalty will have a very positive effect on the sector and is an extremely helpful step in further (Gibb River’s) aim of becoming a profitable diamond producer in Western Australia,” the company stated in an ASX announcement.

The rate is comparable to the 5 per cent royalty rate applied to Rio Tinto’s Argyle diamond project in Western Australia as of May this year, which was amended from the 7.5 per cent rate in 2006 when Rio Tinto decided to proceed with underground mining.

Gibb River operates the Ellendale diamond project in the West Kimberley, which supplies over 50 per cent of the world’s fancy yellow diamonds every year.

The rare colour had driven United States jeweller Tiffany & Co to ink a six-year deal with Ellendale’s former operator, Kimberley Diamonds, for the supply of the diamonds in the past.

Source: australianmining

Lucara to Sell all High-Value Diamonds through HB Group

Lucara is to sell all its larger rough diamonds through the Antwerp-based HB Group in what it describes as a “groundbreaking partnership”.

The Canadian miner has a reputation for high-value type IIa diamonds at its Karowe Mine, in Botswana, and was proud to announce its discovery of the 1,758-carat Sewelo (pictured), the world’s second largest diamond, last April.

It has been stockpiling all +10.8 carats, which account for around 70 per cent of its output, since early March.

Now it has announced a unique, new supply arrangement, with purchase prices based on estimated polished outcome, with a true up paid on actual achieved polished sales thereafter, less a fee and the cost of manufacturing.

Lucara says it will benefit higher prices than it currently achieves at tender, regular cash flow, and a more efficient supply chain as well as tax benefits and beneficiation opportunities for the Botswana government.

Eira Thomas, CEO said: “Building on the partnership established for the manufacturing of the SewelÃ´ earlier this year, Lucara is pleased to have now secured a broader supply agreement with HB to purchase all of our +10.8 carat rough diamonds, through to year-end.

“It is our strong view that the success of our industry in these very uncertain times, requires better alignment between producers, manufacturers, and retailers to establish a healthier, more efficient global diamond supply chain.

We are excited to be working with HB to support this new paradigm.”

Source: IDEX

Karowe Yields Massive 549ct. Rough

Lucara Diamond Corp. has unearthed a 549-carat white diamond at its Karowe mine, the fourth-largest stone in the history of the Botswana deposit.

The unbroken stone, which is of “exceptional purity,” is the first large diamond Lucara has recovered using its Mega Diamond Recovery (MDR) equipment, the miner said Wednesday. The unit, which the miner commissioned in 2017, is specifically designed to recover large stones early in the extraction process to reduce the risk of breakage.

The rough stone is worth $15 million to $20 million, according to an estimate by Berenberg investment bank. However, it could potentially sell for more, the bank added.

The diamond came from the high-value EM/PK(S) portion of discovery of Karowe’s lucrative south lobe, Lucara noted. The same area yielded a 176-carat, gem-quality stone earlier this year, and was also the source of the 1,758-carat Sewelô, the 1,109-carat Lesedi La Rona and the 813-carat Constellation.

“Lucara is extremely pleased to be starting off 2020 with the recovery of two large, high-quality diamonds that build on the positive momentum generated following the completion of a strong fourth-quarter sale in December,” Lucara CEO Eira Thomas said.

Lucara has retrieved six diamonds over 100 carats since the beginning of the year. It will announce its plans for the sale of the 549-carat and 176-carat diamonds shortly.

The miner’s share price rose 4% in early trading Thursday following the announcement.

Source: Diamonds.net

Petra Diamonds shares jump on 425-carat discovery at Cullinan

Shares in Petra Diamonds jumped more than 8% on Friday after the miner announced it had dug up a 425.1 carat, D colour, Type II gem quality diamond at its iconic Cullinan mine in South Africa.

The discovery comes less than a month after Petra found a 100.83 carat gem-quality white diamond at the same mine, source of the world’s biggest ever diamond, which was unearthed in 1905.

“Earlier in March, Petra had recovered a 100.83 carat, white D-colour type II gem-quality stone”

The company, which appointed last month former gold miner Richard Duffy as chief executive, said both recoveries demonstrated the frequency of such large stones at Cullinan.

Petra, which has been seeking to turn around its fortunes after piling up debt to expand the operation, plans to sell the 425.1 carat diamond during the June quarter.

Diamond miners are struggling across the board, especially those producing cheaper and smaller stones where there is too much supply. In December, some of Rio Tinto’s customers refused to buy cheaper diamonds, while De Beers has been forced to cut prices and offer concessions to buyers.

2H Slump Dents De Beers Sales Volume

De Beers’ sales volume fell 4% last year due to weakened demand for lower value diamonds in the second half.

The miner sold 33.7 million carats of rough, compared with 35.1 million carats in 2017, as clients bought fewer of its cheaper stones, it reported Thursday.

De Beers’ average price for sales excluding some sales by its joint-venture partners rose 6% to $171 per carat for the year, reflecting the larger proportion of higher-value goods. As a result, rough-sales value increased 2% to $5.39 billion for 2018, according to Rapaport estimates based on De Beers’ sight reports. The company’s average price index, which tracks its rough prices on a like-for-like basis, declined 1% in the second half, but ended 2018 up 1% versus the previous year.

Production grew 6% to 35.3 million carats, exceeding sales volume.

Sales jumped 21% to 9.9 million carats in the fourth quarter, with revenues also increasing, as the company allowed sightholders to defer purchases from the September sight to later months. Production grew 12% to 9.1 million carats for the quarter.

Source: Diamonds.net