TOKYO, Sept 8 (Reuters) - Japanese government bond futures trimmed gains on Tuesday after an auction of five-year debt drew lacklustre demand, but concerns about worsening U.S.-China ties supported prices.
Benchmark 10-year JGB futures rose 0.1 point to 151.85, with a trading volume of 19,627 lots.
The 10-year JGB yield fell 0.5 basis point to 0.035%. The 20-year JGB yield fell 1 basis point to 0.420%.
At the long end of the curve, the 30-year JGB yield fell 1.5 basis points to 0.605%.
The five-year yield fell 0.5 basis point to minus 0.090%.
At the short end, the two-year JGB yield fell 0.5 basis point to minus 0.135%. (Reporting by the Tokyo markets team; Editing by Devika Syamnath)
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