Shanghai steel   rebar futures surged nearly 4 percent on Monday as Chinese markets reopened   after a week-long holiday, with investors anticipating production cuts in the   worlds top steel producer as the country fights smog. 
  Chinese authorities have ordered heavily air-polluting industries including   steel to curb output and cut emissions during the four-month winter heating   period that typically begins on Nov. 15. 
  But some cities have already ordered its mills to reduce output. The city of   Handan in the top steelmaking province of Hebei has told its steel mills to   halve output from Oct. 1 until March. The most-active rebar on the Shanghai   Futures Exchange rose as much as 5.3 percent from the close on Sept. 29 to   3,795 yuan ($573) a tonne, the highest since Sept. 21. The contract slipped   from there and was trading at 3,731 yuan at 0228 GMT, up 3.6 percent. 
  Chinese markets were shut from Oct. 2 to 6 for the National Day holiday. 
  The main driver behind the spike in steel prices is the "winter cuts and   we need to pay attention to detailed plans of the different provinces to   measure the material impact on steel production and supply," said Kevin   Bai, a consultant at CRU. 
  But Bai said the production cuts would also coincide with the seasonal   downturn in consumption during winter, possibly muting any impact on supply   and demand conditions. 
  If all 28 Chinese cities covered by the restrictions slash production by 50   percent, around 45.67 million tonnes of crude steel output will be lost, said   Cao Ying, an analyst at SDIC Essence Futures, told an industry conference in   Qingdao late last month. That is equal to nearly 6 percent of Chinas 2016   output. 
  The strength in steel futures lifted prices of iron ore, although ample   supplies of the raw material capped gains. The most-traded iron ore on the   Dalian Commodity Exchange rose 0.4 percent to 454 yuan per tonne. 
  Stockpiles of iron ore at Chinas ports rose 2.35 million tonnes from the   previous week to 133.2 million tonnes as of Sept. 29, just before China went on   holiday, according to data compiled by SteelHome consultancy. 
  The increase in port stocks followed an eight-week decline.  |