Oman s biggest cement producer Raysut Cement has reported a 33% increase in first-quarter profit before tax to OR9.13m from OR6.84m in the same period last year, Muscat Daily has reported. "The increase in profit is attributable to higher sales volume in cement, better price realisation through market optimisation as well as the reduction in costs compared to the previous year," the firm said. Sales revenue during the quarter rose 2% to OR25.22m, compared with OR24.64m in the same period last year, it said.