GRAINS-Soybeans ease from 2-week high as USDA data, China talks awaited

* Markets monitoring more Chinese buying amid trade talks

* Return of U.S. export data eyed after end to shutdown

* Adverse Brazil weather underpins soybeans, corn

* U.S. wheat firm as tightening Russia supply weighed

(Updates with European trading, changes byline/dateline) PARIS/SINGAPORE, Jan 28 (Reuters) - Chicago soybean futures ticked lower on Monday, easing from a two-week high before the weekend, as the market awaited the resumption of U.S. grain data after a government shutdown and developments in trade talks between Washington and Beijing. Prices remained underpinned by concern that adverse weather in top exporter Brazil will lead to more harvest forecast cuts. Corn was flat while wheat edged higher after a two-session drop, supported U.S. exports. The Chicago Board of Trade most-active soybean contract was down 0.4 percent at $9.21-1/4 a bushel by 1325 GMT. On Friday, it had climbed to its highest since Jan. 9 at $9.26. A Chinese delegation is due to travel to Washington this week for fresh talks to resolve a tariff dispute that has disrupted U.S. soybean exports to China. Chinese state-owned firms resumed purchases of U.S. soybeans in December as part of a negotiating truce, but confirmed deals have dried up this month, with a lack of export data during a partial U.S. government shutdown adding to uncertainty. "China bought 5 million tonnes of U.S. beans but there is little evidence of any further purchases," said one Singapore-based trader. Traders are waiting to see when the U.S. Department of Agriculture (USDA) will restart daily and weekly publications of export sales. Following Friday's agreement between U.S. President Donald Trump and Congress to reopen temporarily the government, the USDA's chief economist said he expects the agency will release a monthly crop supply/demand report as planned on Feb. 8 if the agency's offices reopen on Monday. Soybean and corn prices continued to find support in dry conditions in Brazil that have reduced yield prospects. "As the Brazil soybean harvest likely exceeds 10 pct of total area, warmth and dryness to continue into February, further reducing production," Thomson Reuters Agriculture Research analysts said in a note. However, weather forecasts showed some showers across Brazil in the week ahead, including in parched northern areas, while also pointing to less moisture in Argentina where flooding has disrupted crop planting. In wheat, traders are assessing the scope for an upswing in U.S. exports at the expense of Russia. Consultancy Sovecon on Monday estimated January exports of wheat, barley and maize (corn) from Russia at 2.35 million tonnes, down from 4.3 million tonnes in December. 3/8 At the same time, the firm on Friday raised its forecast of Russia's 2018/19 wheat exports to 35.6 million tonnes from 35.1 million previously.

Prices at 1325 GMT

Last Change Pct End Ytd Pct Move 2018 Move CBOT wheat 522.00 2.00 0.38 503.25 3.73 CBOT corn 380.50 0.25 0.07 375.00 1.47 CBOT soy 921.25 -4.00 -0.43 895.00 2.93 Paris wheat Mar 205.50 -0.25 -0.12 203.25 1.11 Paris maize Mar 179.50 -0.25 -0.14 180.25 -0.42 Paris rape Feb 376.50 -0.75 -0.20 364.50 3.29 WTI crude oil 52.74 -0.95 -1.77 45.41 16.14 Euro/dlr 1.14 0.00 0.04 1.1469 -0.46

Most active contracts - Wheat, corn and soy US cents/bushel, Paris futures in euros per tonne

(Reporting by Gus Trompiz in Paris and Naveen Thukral in Singapore; Editing by Subhranshu Sahu and Louise Heavens)