May 20 (Reuters) - Copper declined to a

more-than-one-week low on Wednesday, as a stronger dollar and a

rise in U.S. Treasury yields weighed on the market.

The benchmark three-month copper on the London Metal Exchange

dipped 0.28% to $13,374 a metric ton as of 0315 GMT,

after touching $13,350, the lowest since May 8.

The most-active copper contract on the Shanghai Futures

Exchange lost 1.20% to 103,160 yuan ($15,142.53) a ton,

after touching its lowest since May 8 at 103,040 yuan.

Concerns around the Iran war-fuelled inflation saw the

dollar drifting higher, making greenback-priced metals

more expensive for buyers using other currencies.

Long-dated U.S. Treasury yields also climbed, with the

30-year yield , long seen as a barometer of political

risk, hitting its highest since 2007, adding pressure on

risk-sensitive assets.

The benchmark 10-year Treasury note yield also

surged to its highest since January 2025.

Higher yields reduce appetite for industrial metals,

including copper, traders said, particularly after the red

metal's recent rally left prices vulnerable to profit-taking.

Elsewhere, investors were also watching minutes from the

Federal Reserve's latest meeting for clues on the U.S. rate

outlook.

Meanwhile, a nickel rally on Tuesday following fresh supply

risks from Indonesia lost steam, despite a plan by Indonesia's

government to centralise commodity exports through a state

agency, with the export of coal and palm oil having to be done

through the planned state agency, sources told Reuters.

And several Indonesian cabinet ministers met with Chinese firms

operating in the country, its energy minister said, after a

China Chamber of Commerce in Indonesia wrote a letter to the

president seeking more business-friendly policies, while warning

tighter nickel ore quotas, higher taxes and a new pricing

formula are driving up costs and threatening investment in the

world's biggest nickel producer.

The London benchmark nickel dropped 0.43%, and the

Shanghai most-active nickel contract, however, gained

0.49%.

Among other LME metals, aluminium dipped 0.15%, zinc

dropped 0.23%, lead ticked 0.10% lower, and tin

was little changed.

Elsewhere on SHFE, aluminium dipped 0.08%, zinc

lost 0.53%, lead dropped 0.33% and tin

tumbled 1.54%.

Wednesday, May 20

DATA/EVENTS (GMT)

0100 China Loan Prime Rate 1Y, 5Y May

0600 UK Core CPI YY Apr

0600 UK CPI YY Apr

0600 UK CPI Services MM, YY Apr

0900 EU HICP Final MM, YY Apr

($1 = 6.8126 Chinese yuan renminbi)