TransAsia Commodities has hiked its claims against NewLead Holdings to $22m during a trial in New York.

The Serge Turko-led commodities trader's request before a special referee appointed by the New York Supreme Court includes punitive damages, sanctions and interest, the company says.

TradeWinds previously reported that TransAsia was pursuing some $10m in its long-running dispute over allegations that NewLead's coal mining joint venture sold it coal that it did not have from mines that it did not own.