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* FTSE 100 up 0.1%, FTSE 250 up 0.2%
* Asia-facing banks, miners aid main index
* Kigfisher rises after naming new CEO
* Investigation into payroll practices takes down Staffline
June 27 (Reuters) - London's FTSE 100 nudged up on Thursday after a report that the United States and China had agreed to a tentative truce in their trade dispute charged solid gains in Asia-exposed financial stocks and miners.
The FTSE 100 .FTSE edged 0.1% higher and the FTSE 250 .FTMC rose 0.2% by 0703 GMT.
Shares of HSBC HSBA.L and Prudential PRU.L boosted the blue-chip index in early dealings, while miners such as Rio Tinto RIO.L also provided support.
Home improvement retailer Kingfisher KGF.L rose 2.4% after it named Carrefour 's CARR.PA Thierry Garnier as its new chief executive officer. smaller stocks, Staffline STAF.L dropped 24% after the recruiter said it has been investigating its financials after auditors received an anonymous email with "allegations related to its payroll and how it recorded invoices."