The device is known as a photoelectrochemical cell and it is made of copper oxide, or cuprous oxide, a promising artificial photosynthesis material.

The Canadian miner said its Kamoa-Kakula complex produced 105,884 tonnes of copper concentrate last year, topping guidance.

Peru’s Ministry of Energy and Mines said regional and local governments saw a 60% increase in mining tax revenues in 2021.

Researchers produced methanol and acetic acid by reacting methane with oxygen in the presence of a catalyst made from gold and the zeolite ZSM-5.

Chilean copper agency Cochilco says lithium hydroxide will take the lead, reaching 56% of the total consumption versus 44% for carbonate.