Shoe manufacturer PT Kasogi International Tbk on Monday posted a steep climb in first half net profit to $6.7 million from a year-ago loss of $13.5m on the back of higher sales and foreign exchange gains. The company said in a statement sales jumped 11 per cent to $6m from $5.3m in 2001 while it made $7m from gains on foreign exchange compared to a foreign exchange loss of $7.3m in the year prior.