SINGAPORE, June 19 (Reuters) - Chicago wheat futures edged lower in early Asian hours on Tuesday, as traders locked in profits after a recent rally despite persistent supply concerns amid uncertainty over the future of the Black Sea grain deal.

Soybean and wheat futures were both headed for gains.

FUNDAMENTALS

* Wheat futures lost 0.2% to $6.86-3/4 a bushel, as of 0203 GMT, after reaching a two-month high in the previous session.

* The most-active soybean contract on the Chicago Board of Trade (CBOT) was up 0.8% at $13.52-1/2 a bushel, and corn gained 1.2% to $6.04-1/2 a bushel.

* The CBOT was closed on Monday for the Juneteenth holiday in the U.S.

* Russia's deputy foreign minister said on Monday that even if a deal allowing shipments of Ukrainian grain via the Black Sea ends, Russia's agreement with the United Nations to ease its own exports will stay in force, Russian state news agency RIA reported on Monday.

* Kremlin spokesman Dmitry Peskov said on Saturday there appeared to be "no chance" of extending the deal.

* The European Union's crop monitoring service on Monday reduced nearly all its average yield forecasts for this year's grain and oilseed crops in the bloc, citing adverse weather conditions.

* Brazilian farmers have harvested through last Thursday 4.7% of the area planted for their second corn crop in the center-south region, agribusiness consultancy AgRural said on Monday, up 2.5 percentage points from the previous week.

* Algeria's state grains agency OAIC has bought milling wheat in an international tender which closed on Monday with supplies expected to be sourced largely from Russia, European traders said in initial assessments.

* Commodity funds were net buyers of Chicago Board of Trade soybean, corn, soymeal, wheat and soyoil futures contracts on Friday, traders said.

DATA/EVENTS (GMT)

0115 China Loan Prime Rate 1Y, 5Y June

1230 US Housing Starts Number May

2350 Japan Bank of Japan releases Minutes of Monetary

Policy Meeting held on April 27 and 28 (Reporting by Matthew Chye; Editing by Rashmi Aich)