Mining giant Aquarius Platinum fell after it said the Indigenisation Implementation Plan that its indirect 50% subsidiary submitted to the government of Zimbabwe in November 2011 has been rejected.Mimosa Holdings had submitted a plan outlining how it would meet the country's law requiring foreign miners to sell 51% of their assets to entities designated by the government. Meanwhile Berendsen soared into the top spot, after the textile services firm reported a rise in both revenue and pre-tax profit for the full year ended December 31st. Profit before tax rose to £79.3m from £34.6m the previous year, while revenue gained 1% from £986.1m to £992m. Meanwhile insurance underwriter Lancashire Holdings was in the red after UBS downgraded the stock from buy to neutral on valuation grounds.FTSE 250 - RisersBerendsen (BRSN) 504.00p +9.09%Ophir Energy (OPHR) 401.00p +6.93%Logica (LOG) 88.15p +6.85%Kenmare Resources (KMR) 61.00p +4.18%Diploma (DPLM) 403.40p +3.04%Soco International (SIA) 346.20p +3.01%JPMorgan Russian Securities (JRS) 592.50p +2.86%Go-Ahead Group (GOG) 1,309.00p +2.75%Laird (LRD) 174.60p +2.71%EnQuest (ENQ) 128.30p +2.64%FTSE 250 - FallersAquarius Platinum Ltd. (AQP) 136.30p -6.71%Hays (HAS) 84.50p -3.21%Oxford Instruments (OXIG) 1,145.00p -2.55%Fenner (FENR) 470.10p -2.43%JD Wetherspoon (JDW) 397.20p -2.41%ITE Group (ITE) 235.00p -2.33%Computacenter (CCC) 403.50p -2.18%Lancashire Holdings (LRE) 774.00p -2.03%Jardine Lloyd Thompson Group (JLT) 686.50p -1.72%BH Global Ltd. USD Shares (BHGU) 11.65 -1.69%NR