(EnergyAsia, August 17) — Singapore’s SembCorp Marine has reported a 21.6% rise in first half net profit to S$58.4 million over the same period last year. (US$1=S$1.65). Its net profit excluding the effect of tax write-backs last year was up 33.6% compared with S$43.7 million in the first half of 2004.             Group turnover rose…