Office furniture manufacturer Lamex Holdings plans to raise about $40 million for working capital by selling 280 million new shares at 15 cents each to institutional and private investors, with Worldsec International underwriting the issue. The new shares represent 12.75 per cent of the company's enlarged capital. The sale will see chairman Clement Lam Ching-wah and executive director Andy Ng Chung-shu's aggregate interest diluted from 43.44 per cent to 37.91 per cent.