Disgraced high-profile investor Rogerio Lam Sou-fung lost his bid to clear his name yesterday after the Court of Appeal rejected moves to overturn his conviction for a multi-billion-dollar bank fraud. Lam, 67, the son of the late Hang Seng Bank founder, Lam Bing-yim, was appealing against two convictions relating to bogus documents. His counsel, Andrew Macrae, SC, argued District Court judge Bernard Whaley had erred in interpreting the evidence and placed too much weight on 'insignificant' witnesses when he convicted Lam last November. He was convicted of trying to use a bogus bank guarantee in two failed attempts to obtain a loan of US$200 million from Credit Lyonnais Bank and Deutsche Bank in June 2000. Lam was jailed for 20 months and barred from being a director of any company for five years. He was remanded in custody yesterday.