I still have several issues relevant to your manuscript and hope those can be resolved before it is considered for publication. I am unconvinced with your claim that an improved emission inventory (EI) for power plants led to enhanced atmospheric oxidizing capacity during haze periods in East China. It has been well established that there typically was a significant reduction in photochemical activity during severe haze period in China, which has been well characterized by low ozone concentrations (Elucidating severe urban haze formation in China, Proc. Natl. Acad. Sci. USA 111, 17373, 2014). On the other hand, simulations of fine urban PM using WRF-CHEM typically suffered from several major uncertainties, including EI, MET, and CHEM. Your work only considered the uncertainty in EI, but neglected those relevant to the other two. For example, there has been increasing evidence that the photochemical activity is decreasing, but the aqueous chemistry is enhancing during the development of severe haze in China (e.g., Formation of urban fine particulate matter, Chem. Rev. 115, 3803, 2015). Another key aspect of severe haze formation in China is the interaction between pollution and PBL, and in particularly aging of BC particles plays a critical role in such interaction (e.g., Markedly enhanced absorption and direct radiative forcing of black carbon under polluted urban environments, Proc. Natl. Acad. Sci. USA 113, 4266, 2016). Those aspects need to be carefully assessed and evaluated in your work.
I consider that the title for your manuscript does not appear to be supported by your results, for the reasons provided above. Perhaps, it would be more appropriate to use a title such as “Updated emission inventories for power plants for simulating air quality during haze periods over East China”.
Minor points
In the abstract, delete the numbers (i.e., 1-3).
In numerous places throughout the manuscript, the phrase “power emissions” were used. Please change to “power plant emissions”.
In Figure 9, please change the units of gases to ppb.

Please consider the following title for your manuscript "Updated emission inventories of power plants in simulating air quality during haze periods over East China"