This article investigates the microeconomics underlying the spectacular growth of productivity in China's manufacturing sector over the period 1998-2007. Underlying the aggregate evidence of such dramatic growth, one observes a large, albeit shrinking, intra-sectoral heterogeneity coupled with an even more important process of learning and knowledge accumulation. A major process of both catching-up and dying out among the least efficient ones occurs. Furthermore, we explore the effect of the characteristics of firms according to the ownership and governance structure upon the productivity distributions, highlighting the importance of the transformation of domestic firms as drivers of technical learning. In essence, China's fast catching-up ...