05/05/2012 (Bloomberg) - Soybeans advanced for the first time in four days as U.S. export sales increased, draining inventories in the world’s largest grower. Corn and wheat rose.

July-delivery soybeans gained 0.4 percent to $14.7875 a bushel on the Chicago Board of Trade at 3:31 p.m. Singapore time, trimming the first weekly loss since March to 1 percent.

Corn for July delivery gained 0.4 percent to $6.1675 a bushel, set for a 1.4 percent loss this week. Wheat for delivery in the same month gained 0.6 percent to $6.19 a bushel, trimming the weekly loss to 4.8 percent.

Palm oil gained, trimming the biggest weekly decline this year, on speculation that demand for cooking oils will climb as dry weather in South America lowers soybean supplies and global inventories.

The July-delivery contract gained as much as 0.5 percent to 3,395 ringgit ($1,118) a metric ton on the Malaysia Derivatives Exchange and ended the morning session at 3,386 ringgit in Kuala Lumpur. Futures are down 3.4 percent this week, the biggest five-day loss since November.