China may expand exporters' tax rebates to help them cope with a slump in trade growth, according to three people with direct knowledge of the plan, deploying a stimulus tool used during the global credit crunch.

The government may give a full rebate of the 17 percent value-added tax on products including furniture, shoes and toys, up from the current range of 13 percent to 15 percent, said the people, who asked not to be identified because the discussions are private. The policy may be rolled out as soon as this month, depending on whether trade remains weak, they said.

Premier Wen Jiabao has pledged policy "fine tuning" to cope with a deepening slowdown in the world's second-largest economy that saw export gains slump to an annual 1 percent pace in July from 11 percent in June. The deterioration in trade escalated the risk that Wen will miss his full-year economic expansion target for the first time since he took office in 2003.