A seller prepares rice to be sold at a market in Kampong Speu province, west of Phnom Penh August 2, 2010. Cambodia's rice exports in the first six months this year has surpassed the whole of last year to 15,000 tonnes, a senior commercial official said on Monday, as the country steps up its efforts to become a leading shipper of the grain. REUTERS/Chor Sokunthea (CAMBODIA - Tags: BUSINESS)