TO: ALL MEMBERS

FILING SERIAL: SQBF [2013] NO. 119

The newly amended contract size of 5 tons/lot for the lead futures will come into effect to all contracts as of September 2nd, 2013. According to the newly amended lead futures contract, the disclosure threshold of open interest thereof has been adjusted as below: with its implementation beginning with PB1309 contract, should open interest of a lead futures contract reach 30,000 lots, the Exchange will disclose the total trading volume of the active month futures contracts of Futures-firm Members and total long/short open interests of such members, total trading volumes of the active month futures contracts of Non Futures-firm Members and total long/short open interests of such members, and the ranking of the top 20 Futures-firm Members in terms of total trading volume and long/short open interests.