Base metals were mixed, and copper was weak during the LME period

Used in industries such as power and construction, copper is widely seen as a measure
of the health of the global economy.
On May 10, London copper futures reached an all-time high of $10,747.
5, up nearly 40%
from the end of 2020.
Since then, copper prices have fluctuated to the downside, still 9.
5% below that high, mainly because of high copper prices affecting demand from downstream companies and concerns about China's tightening of commodity controls
.

The dollar rose 0.
3% on Friday, rebounding from Thursday's one-month low, which weighed
on the metal in dollar quotes.

On Friday, LME aluminum hit a new high in more than three years as the market focused on a reduction in aluminum supply after Yunnan province restricted electricity consumption at aluminum plants
.
The LME three-month aluminum session hit $2,642, also the highest since April 2018, closing up 0.
1% at $2,593 a tonne, which would also be the sixth straight month of gains
.

Aluminium stocks in LME warehouses have fallen by almost a third since March to 1.
39 million tonnes
.

Last Thursday, aluminum producers in Yunnan province received a notice asking them to limit their electricity consumption
.
A smelter will not be able to meet its 2021 production target
because of a power outage.
Ms.
Xiao Fu, commodity strategist at BOCI, commented that the Yunnan power claw lasted longer
than expected.
Normal production will begin to resume in August, but it will take longer now
.
In addition, China takes the goal of carbon neutrality very seriously
.
The aluminum industry will need to switch to renewable energy, but it will not be so easy and it will be more expensive
.
In China, aluminum prices are hovering near
11-year highs.

Other metals closed with LME nickel down 1.
5% at $19,545 a tonne; Lead prices rose 0.
6% to $2,378.
50 a tonne; Tin closed down 0.
3 percent at $34,795 a tonne after hitting a record $
35,075.