David Benderly: PermaScribe seeks to put trust mark on diamond table, not just girdle

In this interview with Rough & Polished’s Mathew Nyaungwa, PhotoScribe Technologies president and chief executive David Benderly explains how PermaScribe differs technically from conventional laser inscription, its potential to strengthen security, and...

31 august 2026

The great reset: Paul Zimnisky on supply catharsis, De Beers' bargain and the case for natural diamonds

The natural diamond industry is in the throes of its most profound reset in a generation. Supply is plunging to its lowest level since 1987 and De Beers—once valued at over $9 billion—is reportedly being sold for as little as $1 billion.
Lab-grown...

10 august 2026

Roman Karakurkchi: Maintaining the highest standards of jewelry craftsmanship

Roman Karakurkchi is the founder of the Roman Karakurkchi jewelry brand and the International Jewellery School that brings together instructors from Russia, the USA, the Netherlands, Spain, Belgium, Italy, and Germany, as well as students from 65 countries...

03 august 2026

Mehul Shah pledges to bring new approach to leading WFDB

Mehul N. Shah, who was elected in July as President of the World Federation of Diamond Bourses at the 41st World Diamond Congress in Singapore, is one of India's best-known diamantaires and a prominent leader in the international diamond industry...

27 july 2026

Charlotte Rose on making history, modernising the London Diamond Bourse, and why finance is the industry’s silent crisis

When Charlotte Rose was elected president of the London Diamond Bourse in June 2026, she didn't just break an 86-year tradition—she became the first woman to lead any diamond bourse globally. In an exclusive interview with Rough & Polished’s Mathew...

20 july 2026

DRC concentrate export ban unlikely to disrupt copper or cobalt markets — BMI

14 august 2026

The Democratic Republic of Congo (DRC)’ s recent ban on exports of copper and cobalt concentrates is unlikely to have a material impact on global markets, but could add a near-term risk premium to copper prices while details of the policy are clarified, BMI, a Fitch Solutions company, has told Mining Weekly.

The Ministerial Order, signed on June 29 and published in August, prohibits exports of copper and cobalt concentrates with immediate effect, though one-year waivers may be granted under “strategic circumstances.”

The order also introduces a new tax regime for economically significant mining by-products, with a three-month transition period.

BMI said that the DRC has operated a de facto ban on unbeneficiated concentrate exports since the mid-2010s, with ad hoc exemptions.

The new policy represents a shift to a de jure ban with tighter waiver rules.

For copper, about 13% of the DRC's copper exports last year were in concentrate form, equating to roughly 400,000 tonnes of copper metal or about 1.7% of global mine production.

While this loss could push the copper market into deficit, BMI points to spare smelting capacity at the recently commissioned Kamoa-Kakula smelter, which has a nameplate capacity of 500,000 tonnes per year.

Neighbouring mines may be able to process concentrates there if waivers are not obtained, it said.

BMI said it is not revising down its DRC copper production forecasts.

For cobalt, it said, the ban is “even less impactful,” as almost all cobalt leaves the country as cobalt hydroxide, an intermediate product.

The more significant constraint remains the quota system introduced last year.

The policy shift has injected fresh bullish impetus into copper markets, with LME prices touching $14,369.50 per tonne on August 6, nearing historical peaks.

BMI predicts copper could average closer to $13,500 per tonne this year.

It maintained its cobalt price forecast at $25 per pound for 2026 and $22.50 per pound for 2027, and expects the DRC to lift its export cap to about 120,000 tonnes in 2027.

BMI warned that the development signals resource nationalism is likely to persist across Africa and could grow in scale and scope as commodity prices rise.

Mathew Nyaungwa, Editor-In-Chief, Rough & Polished