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CHICAGO, May 29 (Reuters) - Basis bids for soybeans and corn shipped by barge to U.S. Gulf Coast export terminals were steady to weaker on Friday, traders said, as futures prices declined.

• Corn futures Cv1 lost about 3.5% this week on the Chicago Board of Trade, while soybean futures Sv1 eased about 0.8%.

• South Korean importers booked numerous cargoes of corn this week amid the price decline. GRA/TEND

• Traders said there was talk in the market of Chinese pricing for U.S. soybeans. They have waited for fresh Chinese demand following the meeting of the two countries' presidents in Beijing this month.

• Market participants also monitored unconfirmed rumors that China, the world's biggest soybean buyer, might reduce tariffs on grain imports from the U.S.

• Export demand for U.S. soybeans has been generally muted as newly harvested South American supplies were cheaper, traders said.

• Exporters sold 192,000 metric tons of U.S. soybeans to unknown destinations, including 60,000 metric tons for 2025/26 delivery and 132,000 metric tons for 2026/27, the U.S. Department of Agriculture said in its daily reporting system.

• USDA separately reported U.S. soybean export sales were 299,900 metric tons for 2025/26 in the week that ended on May 21, within analysts' estimates of 150,000 to 400,000 metric tons. Weekly U.S. soybean export sales were 137,700 metric tons for 2026/27, compared to analysts' expectations of zero to 300,000 metric tons.

• Weekly U.S. corn export sales were 1 million metric tons for 2025/26 and 618,600 metric tons for 2026/27, USDA said. Analysts expected 900,000 to 2 million metric tons for 2025/26 and 300,000 to 500,000 metric tons for 2026/27.

• CIF May soybean barge bids were unquoted. June barge bids dropped 2 cents to 81 cents over CBOT July SN26 futures.

• FOB export premiums for soybean vessels loaded at the Gulf in June were flat at 102 cents over July futures.

• CIF corn barge bids for May loadings were unquoted. June barges were bid steady at 79 cents over CBOT July CN26 futures.

• FOB Gulf corn vessels loaded in June were offered steady at 100 cents over July futures.

For displays of CIF basis, click on the codes in brackets:

U.S. CIF Gulf soybeans GRYM

U.S. CIF Gulf corn GRYN

U.S. CIF Gulf SRW wheat GRYO

U.S. CIF Gulf HRW wheat GRYP

For displays of FOB basis, please click on the following codes in brackets:

U.S. FOB Gulf corn GRZC

U.S. FOB Gulf soybeans GRZD

U.S. FOB Gulf SRW wheat GRZE

U.S. FOB Gulf HRW wheat GRZF

LINKS

Corn prices page: cpurl://apps.cp./cms/?pageid=corn-cash-market

Wheat prices page: cpurl://apps.cp./cms/?pageid=wheat-cash-market

U.S. barge freight BG/US

U.S. export sales estimates USDA/EST

U.S. grain export summary GRA/U

Brazil soybean export prices SYBS

Brazil corn export prices SYBX

Argentina grain prices GRA/ARG

Russia grain prices GRA/RU