Consumer-electronics manufacturer Pine Technology Holdings saw net profit in the third quarter to the end of March increase 151.99 per cent on a year earlier to US$2.8 million. It was achieved on a turnover boost of 27.3 per cent - to US$235.73 million - and reflected an improved gross profit margin from its product mix. Cost control also shaved 9 per cent from overheads, chief executive Simon Ong said. The quarter brought net profit for the past nine months to US$8.01 million, against a full-year forecast of US$9.8 million made when the company listed on the GEM last November. Meanwhile, the company says company secretary Philip Ko Ming-kin is resigning due to personal reasons.