LEATHER trader Dah Hwa International has announced a 128 per cent jump in its interim profit ended September 30, from HK$12.6 million to $28.9 million. Trading of garment leather was the major source of income, with increased sales of 145 per cent. Sales of handbag and other leathers trading jumped 96 per cent. Turnover shot up 123 per cent to $196.46 million.