Mass-capacity inequality modeled on conformally flat manifolds

In the spin case, we can establish a mass-capacity inequality for generalized asymptotically flat manifolds $(M,g,E)$ with nonnegative scalar curvature, where the equality implies that $(M,g)$ is harmonically conformal to ${\mathbb{R}}^n\setminus S$ for a closed bounded subset $S$ of ${\mathbb{R}}^n$ with Hausdorff dimension no greater than $\frac{n-2}{2}$.