SHANGHAI, Mar 29 (SMM) - In accordance with the DCE Risk Management Regulations, the Dalian Commodity Exchange (DCE) has decided to raise the margins of 2205 and 2209 iron ore futures contracts for speculative trading from 12% to 15% while keeping the daily price upside and downside limits, as well as the margins for hedging business unchanged at 10%, effective from the settlement on March 30, 2022.