Net income in the three months to June 30 climbed 5.4 per cent to OMR5.25m ($13.64m), compared with OMR4.98m a year ago.
It is the slowest pace of growth since the third quarter of 2005.
First-half profit rose 24.8 per cent to OMR12.57m, or OMR0.63 per share, compared with OMR10.07m, or OMR0.50 per share, a year earlier, an official at Raysut said, declining to be identified. He had earlier said first-half profit last year was OMR10m.