The paper reports exactly one elasticity per sector (residential Table I, industrial Table II) with no alternative specifications, and both numbers feed directly into the paper's Ramsey-tariff calculations, so both rows are trivially preferred. || "the price elasticity of demand of the residential consumers in the short run is about -0.1577" ... "So the price elasticity of the industrial consumers in the short run is about -0.60." (both p. 445, printed)
Qi, F., Zhang, L., Wei, B., & Que, G. (2008): 'An application of Ramsey pricing in solving the cross-subsidies in Chinese electricity tariffs.' DRPT2008 Conference Proceedings, 442-447.