China: Dalian iron ore tumbles 10% as Tangshan curbs steel output

Dalian, SGX iron ore benchmarks sink to 4-week low; Tangshan restrictions dim iron ore demand outlook

Dalian iron ore futures fell by the 10% daily limit on Tuesday as anti-pollution restrictions in China's top steelmaking city of Tangshan crushed hopes of a pickup in demand for the raw material.

May iron ore on the Dalian Commodity Exchange ended daytime trading at 1,031.50 yuan ($157.98) a tonne, shortly after tumbling 10% to 1,031 yuan, its weakest since Feb. 9.

Iron ore's front-month contract on the Singapore Exchange slid 7% to $155.65 a tonne, also the lowest since Feb. 9.

Tangshan in the smog-prone northern Chinese province of Hebei, which accounts for a quarter of steel output in the world's top