Mining companies were on the rise after Tradenext highlighted opportunities for potential upside in the sector following the sell-off in recent weeks, though these opportunities are high risk, the broker warned. AMEC, the consultancy, engineering and project management outfit, was higher after reporting that the order book edged higher in the first quarter, giving it good visibility for 2013 and beyond. Property giant British Land rose after buying out joint-venture partner Tesco in the Surrey Quays Shopping Centre in an attempt to accelerate its investment programme in London and the South East. Meanwhile, publishing group Reed Elsevier took a hit after Cheuvreux reduced its rating on the stock to underperform from perform. FTSE 100 - RisersVedanta Resources (VED) 1,075.00p +6.54%Eurasian Natural Resources Corp. (ENRC) 236.00p +5.08%Amec (AMEC) 1,108.00p +2.69%Antofagasta (ANTO) 972.00p +2.05%Royal Bank of Scotland Group (RBS) 275.90p +1.77%Xstrata (XTA) 1,057.50p +1.20%British Land Co (BLND) 554.50p +1.19%Petrofac Ltd. (PFC) 1,432.00p +0.99%Glencore International (GLEN) 350.40p +0.98%Shire Plc (SHP) 1,976.00p +0.71%FTSE 100 - FallersReed Elsevier (REL) 759.00p -3.86%ITV (ITV) 124.80p -3.33%ARM Holdings (ARM) 887.00p -3.17%Aberdeen Asset Management (ADN) 414.30p -3.06%Randgold Resources Ltd. (RRS) 5,220.00p -2.88%Tullow Oil (TLW) 1,179.00p -2.88%Wolseley (WOS) 3,162.00p -2.68%easyJet (EZJ) 1,098.00p -2.57%Carnival (CCL) 2,211.00p -2.51%Standard Life (SL.) 338.10p -2.40%NR