Steel futures fall on speculation

Steel futures slumped in China as exchanges announced measures to cool speculation after prices surged to the highest level since 2014 in record volume on Thursday. Reinforcement-bar used to strengthen concrete fell 3.7 percent to 2,648 yuan ($408) a metric ton in Shanghai, snapping a four-day rally. Prices have climbed 15 percent this week, the most since the contract started in 2009.

Aluminum set for best week

Aluminum headed for the biggest weekly advance since November 2012 amid signs of healthier demand from China's rebounding property market, which has been driving a wider rally in industrial commodities. The metal used in window frames and beer cans traded little-changed at $1,636 a metric ton on the London Metal Exchange, up 5.2 percent this week. It's risen every day this week.