Jan 21 (Reuters) - Soybean export premiums at the U.S. Gulf
Coast were mostly steady to weak on Tuesday amid an accelerating
South American harvest and reports that China switched some of
its U.S. purchases to Brazil, traders said.
* Nearby CIF soybean basis values slumped on Tuesday as at
least one major exporter sold spot supplies. After spiking to a
$1.35 per bushel premium over futures last week, spot barges
traded as low as $1.22 over on Tuesday, traders said.
* The lower nearby barge basis came amid widespread trade
talk that 3 cargoes of U.S. soybeans sold to China for February
shipment were switched to Brazilian-origin beans.
* Brazil is expected to harvest a record-large soybean crop
this season and early yield reports have been revealing larger
than expected yields, trade sources said. Port congestion was
also expected to be less than last year as Brazil's corn export
program is much smaller in the first quarter of 2014.
* A nearly 3 percent plunge in U.S. soybean futures on
Tuesday could attract more Chinese demand for March shipments
from the United States, although no fresh sales could be
confirmed, a trader said.
* Corn export premiums at the Gulf were mostly steady to
firm, supported by good demand for spring shipments following
recent steep price declines.
* FOB basis offers for April and May shipments from the Gulf
have risen by 6 to 7 cents a bushel since the middle of last
week as short-bought importers, including some in Japan and
South Korea, booked purchases.
* U.S. corn prices for March shipment and beyond were at a
discount to exports from Ukraine, a low-cost supplier that
typically undercuts U.S. demand.
* U.S. wheat export premiums were steady, underpinned by
tight spot supplies at the Gulf and moderate demand following
recent price declines, traders said.
(Reporting by Karl Plume in Chicago; Editing by Bernard Orr)