HONG KONG (Reuters) - When U.S. private equity heavyweight Warburg Pincus [WP.UL] started looking at China's logistics sector in late 2009, there were more modern warehouses in Boston than in the whole of the world's most populous country.<div><a href="http://feeds.reuters.com/~ff/reuters/technologyNews?a=Cf_NDyPmk-c:YoGngAeMYeA:yIl2AUoC8zA"><img src="http://feeds.feedburner.com/~ff/reuters/technologyNews?d=yIl2AUoC8zA" border="0" /></a> <a href="http://feeds.reuters.com/~ff/reuters/technologyNews?a=Cf_NDyPmk-c:YoGngAeMYeA:V_sGLiPBpWU"><img src="http://feeds.feedburner.com/~ff/reuters/technologyNews?i=Cf_NDyPmk-c:YoGngAeMYeA:V_sGLiPBpWU" border="0" /></a> <a href="http://feeds.reuters.com/~ff/reuters/technologyNews?a=Cf_NDyPmk-c:YoGngAeMYeA:-BTjWOF_DHI"><img src="http://feeds.feedburner.com/~ff/reuters/technologyNews?i=Cf_NDyPmk-c:YoGngAeMYeA:-BTjWOF_DHI" border="0" /></a></div><img src="http://feeds.feedburner.com/~r/reuters/technologyNews/~4/Cf_NDyPmk-c" height="1" width="1" alt="" />