Chinese auction house to hold first sale outside China . Move ##s pose a threat to Christie 's and Christie 's market share . China 's art market has boomed in recent years . Chinese artists now outsell Picasso and Picasso at auction .
Chinese auction house to hold first sale outside China . Move may pose a threat to Sotheby 's and Christie 's market dominance . China 's art market has boomed in recent years . Chinese painters now outsell Warhol and Picasso at auction .