Singapore-listed Taiwanese snack maker Want Want Holdings has reported first-half net profit up 15% to US$43.81m, helped by improvements in sales and operating efficiency. The company said that despite the impact of the outbreak of Severe Acute Respiratory Syndrome (SARS), second-quarter net profit was up 31.5% to $15.6m, thanks to improved sales of its rice cracker products. Sales rose 19% to $103.7m.