Shopfitter and point of sale printing group Havelock Europa plunged Tuesday after it announced its intention to give up its full stock market listing and move to AIM.The decision to drop down to the junior market was driven by cost and the simplification of the company's administrative and regulatory requirements. It also thinks AIM will offer greater flexibility, especially with regard to corporate transactions. The move will take place on 30 July.imJack, a social networking business for the education sector, has returned from five months suspension after promising to publish results for the year ended 30 September 2009 tomorrow.The company, which temporarily halted trading in its stock on 11 January due to financial uncertainty, is also raising a net £900,000 from a placing at 1.5p a share, which bosses believe give it sufficient working capital.Oxus Gold thinks a deal done with the Chinese in January means the Asia-focused miner will "be able substantially to increase the value of the group for the benefit of shareholders, employees and the economy of Uzbekistan." It signed a conditional agreement with the Chinese CITIC Group to provide up to $185m in equity and debt financing. The group's joint venture, Amantaytau Goldfield, also returned to profitability, reporting an operating profit before exceptional items of $10.96m for 2009 and a net profit after exceptionals and tax of $1.02m.Shopping trolley maker Supercart has come back down to earth following Monday's rally after full-year profit almost doubled to £2.17m as administrative expenses soared by over £700,000.The firm, which did a deal with Toys R Us earlier this year, ramped up turnover by 53% to £7.35m, but an increase in the North American business caused the 34% surge in admin costs. Exchange rate moves were behind an increase in full-year losses at instant messaging solutions group Mobile Tornado, although the sale of 10,000 BB3G phones to InTechnology boosted revenue by £1.9m.The deficit before FX moves narrowed to £1.98m from £3.49m in 2008, but foreign exchange losses hit £424,000 compared with a £1.4m gain the year before, leaving a pre-tax loss of £2.67m, up from £2.22m.TETRA digital radios provider Sepura delivered full year results in line with company forecasts, with total revenues for the year to end-March up 6% to £78.9m from £74.1m the year before, helped by the strength of the euro. On a constant currency basis revenues rose 3%.Profit before tax eased to £9.38m from £10.0m (excluding exceptional items). The dividend has been held at 1.27p per share.Amphion Innovations, the company incubator focused on the medical and technology sectors, said the market remains challenging with sources of capital for early stage technology companies hard to come by. The company said it expects it will have to provide additional support to its partner companies this year and warned that market conditions will have a negative impact on the valuations of some of its partner companies. The company added that chairman Richard Mansell-Jones will be stepping down from the board. Chief executive officer Richard Morgan will take over as executive chairman until a replacement for Mansell-Jones is found.Business to business telecoms reseller Alternative Networks delivered what it called "an excellent set of results" with underlying profit before tax up 31% and turnover up 3%.Turnover climbed to £47.1m in the six months to 31 March from £45.6m a year earlier while adjusted pre-tax profit jumped from £4.36m to £5.73m.The interim dividend per share has been ramped up to 5p from 1.6p a year earlier.