Aviation and newspaper distribution group John Menzies announced its is trading well and continues to be highly cash generative. Profitability and debt levels for the full year are expected to be in line with expectations.The aviation division remains on track for a strong year boosted by larger cargo volumes. In the magazine and newspaper distribution segments, trading is in line but continues to be challenging, the group says.Civil engineering consultant Hyder Consulting has reported a 41% increase in operating profit for the half year ended September to £9.6m, from £6.8m previously after benefiting from performance bonuses in Australia including foreign exchange gains. Adjusted diluted earnings per share rose 44% to 21.61p, from 15.04p, but revenues slipped to £149.9m, from £156.3m. While revenues in the Middle East and Europe grew by more than 30%, revenues in Europe fell 8%. Due to "market changes", the group has sought to "realign the business to those geographies and sectors which are the most resilient", the statement says. 73% of revenues and 85% of operating profits are now earned outside the UK.Support services firm Macfarlane has recorded a stronger trading performance since June compared to the first half. In Packing Distribution, year-to-date sales levels are 9% ahead of last year. However, lower gross margins are apparent in the second half due to price increases by suppliers.Manufacturing Operations' sales have also increased by 9%. Having taken actions last year to ensure that cost base was aligned with lower demand, profits before exceptional items are ahead of 2009. Bank borrowings are continuing to reduce in the second half as a result of strong inflows from working capital. The group remains "cautious over future demand", says chairman Archie Hunter, but full year results remain broadly in line with expectations.Furniture and art dealer Mallett announced that despite results remaining in line and slightly ahead of last year, "trading continues to be unpredictable". Attractive stock buying opportunities have increased its net debt position, but the group maintains the target of cash neutrality over the medium term.Events and conferencing group Tarsus announced that trading continues to be in line with expectations. New bank facilities of £40m of both fixed and revolving credit facilities were put in place in September and run to 2013. Trading cash flows remain strong despite being impacted by delays in the expansion of the Dubai Airport exhibition facility.