MMG issues profit warning as lower metals prices trigger $640-800m impairment

MMG's full-year financial results will be significantly affected by a planned $640-800 million impairment against the fair value of some of its mining assets, the company warned on Tuesday December 8.

MMG’s full-year financial results will be significantly affected by a planned $640-800 million impairment against the fair value of some of its mining assets, the company warned on Tuesday December 8.

The writedown comes in response to the substantial declines in lead, zinc and copper prices since the start of the year, as well as changes to mine development plans, production profiles and acquisition goodwill, the Hong Kong-listed miner told investors after the close of trading on Tuesday.

The assets that have been written down are the Dugald River zinc and lead mine in Queensland, Australia, and the Kinsevere copper mine in the Democratic Republic of Congo, as well as the Izok Corridor development-stage projects in Canada, the miner said.

“The company wishes to emphasise that the impairment is an accounting-related adjustment and a non-cash item, and it will therefore not have any impact on the cash flow of the company,” MMG said.

The Las Bambas copper mine in Peru has not been written down, a statement from the company indicated. MMG bought Las Bambas from Glencore following the miner-trader’s acquisition of Xstrata. 

Las Bambas remains on track to achieve first production in the first quarter of next year, and has recently produced concentrates on a trial basis in order to test logistics and handling ahead of the start-up of the mine, it said in a progress update on Tuesday.

The capex forecast for the Las Bambas project remains within the previously advised range of $1.9-2.4 billion from January 1, 2015, MMG told investors.

Mark Burton 
mburton@metalbulletin.com
Twitter: @mburtonmb

What to read next
Capital is flowing back into junior mining, but selectively. Investment is increasingly favouring development‑stage assets with clearer paths to production, supported by government funding and strategic partnerships. While demand for critical minerals underpins the cycle, early‑stage explorers continue to struggle for capital as investors prioritise discipline, ESG alignment and near‑term cash flow.
Copper in concentrate production from Ivanhoe Mines' Kamoa-Kakula complex in the Democratic Republic of Congo (DRC) fell to 61,906 tonnes in the first quarter, down by 54% from 133,120 tonnes a year earlier, with the company now evaluating local third-party concentrate purchases to advance the ramp-up of its on-site smelter, according to an April 13 production release as the market focused its attention on the impact of global sulfuric acid shortages during CESCO Week in Chile from April 13-17.
China's planned sulfuric acid export ban from May 1, historic lows for copper concentrates treatment and refining charges (TC/RCs) and a fragmenting 2026 benchmark system dominated CESCO Week 2026 in Santiago from April 13-17.
The proposal would align the index more closely with physically traded volumes in the region, and enable it to adjust to evolving market conditions. This proposal follows an observed widening of the spread between trader and smelter purchase components of the index and is aligned with a majority of market feedback. Additionally, Fastmarkets seeks feedback […]
Until now, aluminium has been hard to move, not hard to find. Global aluminium supply had remained technically intact, even as output was curtailed in parts of the Gulf, inventory buffers were drawn down or repositioned, and shipping through the Strait of Hormuz was severely disrupted.
Global aluminium producers face heightened uncertainty over power supplies, with oil and gas prices elevated by the closure of the Strait of Hormuz, through which around 20% of global oil and liquefied natural gas (LNG) flows, sources told Fastmarkets.