RIVERSTONE Holdings saw its net income slip 6.5 per cent year-on-year to RM32.1 million (S$10.6 million) for the third quarter ended Sept 30. This came as its gross profit slipped 9.2 per cent, on the back of substantially higher cost of sales for the period. The Malaysia-based maker of specialised cleanroom and healthcare gloves said it had recorded a 20.6 per cent increase in selling and distribution expenses during the quarter, as it extended its sales and marketing efforts to regions such as the United States. It said this was to tap the "rising demand for both its cleanroom and healthcare gloves", and in line with its efforts to secure orders for the remaining production capacity scheduled to come onboard. Revenue for the period increased 27.5 per cent year-on-year to RM239.5 million, as demand for its cleanroom and healthcare gloves "continued to grow in tandem with its capacity expansion plans".