SINGAPORE  - Chicago soybeans lost ground on Thursday with the market  falling for five out of six sessions and trading near a 10-year low, weighed down by the Sino-U.S. trade war which comes amid an all-time high U.S. crop.

Wheat ticked lower after strong gains over the last two sessions on the back of tightening global supplies.

The most-active soybean contract on the Chicago Board of Trade slipped 0.4 percent at $8.26-1/2 a bushel by 0329 GMT. Soybeans hit their lowest since December 2008 at $8.12-1/4 a bushel on Tuesday.

Wheat was down 0.4 percent at $5.20-1/4 a bushel, having closed up 2.4 percent on Wednesday and corn fell 0.1 percent at $3.45-1/4 a bushel, having gained 0.7 percent in the previous session.

"We have a record crop in the United States and the trade war has reduced China's demand for soybeans, the market is unlikely to rise or sustain gains in this situation," said Phin Ziebell, an agribusiness economist with National Australia Bank.

Soybean prices have come under sustained pressure from the U.S.-China trade war.

The American Soybean Association (ASA) will continue to lobby Washington to negotiate a solution to end the escalating trade war between China and the United States, association president John Heisdorffer said on Thursday at an industry conference.

In July, Beijing imposed tariffs on $34 billion worth of U.S. imports, including soybeans, in retaliation for a similar move by Washington on Chinese goods, threatening U.S. exports of the oilseed worth almost $13 billion last year.

The wheat market is being underpinned by crop-threatening weather in some of the key exporting countries against the backdrop of strong demand.

Traders have also been monitoring dry conditions and the potential for more cold weather in Australia, a key wheat exporter, following possible frost damage last weekend.

Egypt's main state wheat buyer on Tuesday booked 475,000 tonnes of wheat for two shipment periods, Syria bought about 200,000 tonnes of Russian wheat, and Turkey's state grain board issued a tender for around 252,000 tonnes of wheat.

Commodity funds were net buyers of CBOT corn, wheat, soybean and soymeal futures contracts on Wednesday and net even in soyoil futures, traders said.           

(Reporting by Naveen Thukral; Editing by Sunil Nair)

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